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- IRS
- Verify both ON DC lights
illuminate momentarily followed by steady illumination of the ALIGN lights.
- Stall warning test - With hydraulic power OFF, the leading edge
flaps may droop enough to cause an asymmetry signal, resulting in a failure of
the stall warning system test. Place the "B" system electric pumps ON,
retract the flaps and repeat the test.
- If a FUEL PUMPS LOW
PRESSURE light during Flight Deck Preparation does not extinguish when the
switch is turned ON, this may indicate a locked fuel pump rotor. Place the
switch to OFF to prevent possible damage to the pump.
- Hydraulics during Flight Deck Preparation - System A and B
pressure and Brake pressure indicators ... 2800 PSI minimum.
- Window
Heat Switches - Position switches ON at least 10 minutes before take-off.
- IRS
- Verify both ON DC lights
illuminate momentarily followed by steady illumination of the ALIGN lights.
- DO
NOT KEY HF RADIO while airplane is being fueled. Injury to personnel or fire
may result.
- Engine
Start N2 - Position Engine Start Lever to IDLE detent when: 1/ N2 RPM
reaches 25% or (if 25% N2 is not achievable) 2/ at MAX monitoring and a
minimum of 20% N2. Max monitoring is defined as when N2 acceleration is less
than 1% in approximately 5 seconds.
- Prior
to installing the nose gear lockout steering pin, do not make any electrical
or hydraulic power changes with tow bar connected. Any change to electrical
power may cause momentary pressurization of the nose wheel steering
actuators causing unwanted tow bar movement.
- If
the nose gear steering lockout pin is not installed, system A hydraulic
pumps must be placed OFF.
- Before
take-off set initial thrust approximately 40% and stabilize.
- Take-off
power must be set at an airplane velocity between 40 and 60 knots.
- After
lift-off leave Landing Gear Lever in the UP position approximately 10 second
after all red landing gear lights have extinguished.
- SPEEDS:
above 53, 070 kg ... + 10 kts, above 62, 823 kg ... + 20 kts.
- Limit
bank angle to 15 degrees until reaching V2+15 kts.
- To
prevent unwanted roll at autopilot disconnect, do not apply aileron trim
with the autopilot roll channel engaged.
- Use
of aileron trim with the autopilot engaged is prohibited.
- In
flight, do not move speed brake lever beyond the flight detent.
- Using
flaps as speedbrakes is not recommended.
- When
on final approach in landing configuration, it is not recommended to set the
A/T command speed to allow for wind or gust correction. The recommended A/T
approach speed setting is VREF+5 with autopilot ON.
- Do
not use speed brakes below 1.000 feet above the surface.
- In
case of severe turbulence, a descent schedule of .73M/280/250 knots should
be maintained through the turbulent area. At altitudes below FL 150 and with
airplane gross weights less than the maximum landing weight, the airplane
may be slowed to 250 knots. Adequate stall margin exists under these
conditions.
- Limit
REVERSE THRUST to 82% N1 for passenger comfort. When required, the maximum
allowable go-around N1 may be used.
- After
reverse thrust has been initiated, a full stop landing must be made.
- It
is recommended that the engines be operated at, or near idle for three
minutes prior to shutdown to thermally stabilize the engine hot sections. If
operational requirements dictate, the engines may be shut down with a
one-minute cooling period.
- Whenever
the APU is operating and AC electrical power is on the airplane busses,
extended service life of the APU fuel control unit can be realized by
operating at least one fuel boost pump to supply fuel under pressure to the
APU.
- It
is recommended that the APU be operated for three minutes before using as a
bleed air source.
- It
is recommended that the APU (GARETT) be operated for one full minute with no
pneumatic load prior to shutdown. Sundstrand APS-2000 shut down
immediately.
- If
through flight ground time does not exceed 30 minutes, the Window Heat
Switches may remain ON.
- NO
ENGINE BLEED TAKE-OFF - during take-off BLEED TRIP OFF light illuminated. At
minimum of 1500 feet (AGL) and TAT is 38°C or below: ENGINE ANTI -ICE
SWITCH affected side ... ON, TRIP RESET SWITCH ... RESET,
reconfigure cabin pressurization system and reset engine anti-ice
switches.
- Unpressurized
Take-off and Landing or No Engine Bleed Take-off and Landing - If engine
failure occurs, do not position engine BLEED air switches ON until reaching
1500 feet or until obstacle clearance height has been attained.
- Use
of frequency 120,000 or 120,005: Because of unacceptable Electromagnetic
Interference between the Flight Control Computer, the EFIS Symbol Generator
and the VHF COMM#2 antenna, do not use COMM#2 on 120,00(0 or 5) MHz as a
primary means of communication. If frequency 120,00(0 or 5) MHz is required,
use COMM#1.
- VOR
navigation - If change to a localizer frequency is desired when captured in
the VOR mode, disengage VOR LOC mode prior to selection of the localizer.
VOR LOC mode can then be reengaged.
- QFE
operation - Do not use LNAV or VNAV below transition altitude/level.
Altitudes in the navigation data base are not referenced to QFE. Use only
raw data for navigation.
- WATER
SYSTEM DRAINING - Water heaters ... OFF.
Failure to do this could cause damage to the heaters when the water
is drained.
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COLD
WEATHER OPERATION
- Take-off
with light coatings of frost, up to 3 mm in thickness on lower wing surfaces
due to cold fuel, is permissible.
- The
APU should be preheated to above -40°C to ensure proper operation.
- If
the START VALVE OPEN light does not illuminate or the air duct pressure drop
is not observed, the start valve solenoid may be frozen. Warm the starter
valve, fuel control unit and ignition system by ground heating.
- If
ambient temperature is below -35°C, idle the engine two minutes before
changing thrust lever position.
- During
cold weather starts, initial oil pressure may be slow in rising, the LOW OIL
PRESSURE Light may remain illuminated and pressure may then go above the
normal range and may illuminate the FILTER BYPASS Light. The engine should
be operate at idle thrust until oil pressure returns to the normal range. No
minimum oil temperature is specified for take-off.
- During
cold weather starts, oil pressure may temporary exceed the green band or may
not indicate any increase until oil temperature rises. No indication of oil
pressure by the time idle RPM is achieved requires an immediate engine
shutdown. At low ambient temperatures, a temporary high pressure above the
green band may be tolerated.
- When
starting a cold soaked engine, slow oil pressure response is not usual. As
long as there is some indication of oil pressure, up to three and one-half
minutes may be allowed for oil pressure to reach the minimum operating
pressure.
- Following
a precautionary shutdown when no oil pressure indication has been observed,
allow 10 to 15 minutes for internal heat to warm the oil system. Hot air may
be applied adjacent to the gearbox and oil tank for warm-up prior to next
start.
- If
icing conditions are present, Engine Anti-ice must be turned ON immediately
after engine start.
- When
moderate to severe icing conditions are present during prolonged ground
operations, periodic engine run-up to as high a thrust setting as practical
(70% N1 recommended) should be made at 30-minute intervals for approximately
30 seconds duration.
- If
a COWL VALVE OPEN Light remains illuminated bright with engine at idle,
position the APU Bleed Air Switch to OFF and increase thrust slightly (up to
a maximum of 30% N1).
- WHEN
OPERATING THE WING FLAPS DURING LOW TEMPERATURES, the Flap Position
Indicator and Leading Edge Devices annunciator panel should be closely
observed for positive movement. If the flaps should stop, the flap lever
should be placed immediately in the same position as indicated.
- APU
and ENGINE BLEED AIR SWITCHES (with engines operating) should be turned OFF
to prevent de-icing fluid from being ingested and causing fumes in the air
conditioning system. If not required, APU should be shut down to prevent
erratic operation or damage the APU.
- Airplane
de-icing should be accomplished with the flaps up.
- During
de-icing, stabilizer trim should be at FULL APL NOSE DOWN.
- Wing
anti-ice must be OFF when airplane is protected by the application of Type
II or Type IV fluid in compliance with an approved ground de-icing program.
- Wait
approximately 1 minute after completion of de-icing to turn Engine Bleed Air
Switches to ON position.
- If
moderate to severe icing conditions are present, take-off roll must be
proceeded by a static run-up to 70% N1 and stable engine operation observed
prior to brake release.
- Take-offs
on slippery runways are not recommended if the crosswind exceeds 15 knots or
when slush or wet snow is more than 13 mm
- If
excess runway is available, consideration may be given to using IMPROVED
CLIMB PROCEDURES for flaps 5. This will provide additional stall margins.
- If
runway limited for the planned take-off flap setting, consideration may be
given to using the next flap position with Improved Climb Performance. This
will provide additional stall margins with minimum performance penalties.
- If
ice formations is observed on the airplane surfaces (wings, windshield
wipers, window frames, etc.), add 10 knots to the final approach airspeed to
ensure manoeuvring capability. The combined airspeed corrections for steady
wind, gust, and icing should not exceed the maximum of 20 knots.
- AFTER
LANDING IN ICING CONDITIONS, position the stabilizer between 0 and 2 units,
airplane nose down (leading edge UP). This prevents melting snow and rain
from running into balance bay areas and prevents the stabilizer limit switch
from freezing.
- The
airplane must be parked into the wind when the outflow valve is full open.
- If
the nickel-cadmium battery will be exposed to temperatures below -18°C, the
battery should be removed and stored in an area warmer than -18°C, but
below 40°C.
- Securing
for overnight - Outflow Valve CLOSED (by MAN AC)
ICE
and RAIN PROTECTION
- For
operations in moderate to severe icing conditions that can not be avoided,
accomplish a periodic engine run-up every approximately 15 minutes on one
engine at a time to a minimum of 80% N1 when operating at power settings
below 80% N1 to clear ice from fan blades and spinner.
- If
the vibration occurs or persists with engine anti-ice ON, set ENGINE START
SWITCH ... FLT, adjust thrust to 45% N1. After approximately 5 seconds,
advance thrust lever slowly to a high thrust position (minimum 80% N1 is
required) while monitoring engine instruments (especially EGT) for abnormal
indications.
- DO
NOT OPERATE Engine or Wing anti-ice when the TAT is above 10°C. In case of
No Bleed Take-off is max. TAT 38°C.
- Engine
anti-ice must be ON during all ground and flight operations when icing
conditions exists or are anticipated, except during climb and cruise when
the temperature is below -40°C SAT. Engine anti-ice must be ON prior to,
and during, descent in all icing conditions, including temperatures below
-40°C SAT.
- Do
not use wing anti-ice as a substitute for ground de-icing/anti-icing and
inspection procedures which are necessary to comply with operating rules.
- Do
not operate wing anti-ice on the ground when the OAT is above 10°C.
- Prolonged
operation in icing conditions with the leading edge and trailing edge flaps
extended is not recommended. After landing, trailing edge retraction to less
than flaps 15° is not recommended until ice has been removed or a ground
inspection has been made.
- Do
not actuate rain repellent unless windshield wipers are operating and medium
or heavy rain conditions exists. Apply repellent only in rain with wipers
operating. Apply to one windshield at a time. Do not apply to second
windshield until residue is washed off and repellency is established on
first windshield. Do not apply to a dry windshield. Do not turn wiper ON if
repellent is inadvertently applied to dry windshield.
- Do
not use rain repellent in an attempt to clean a dry dirty windshield. If
rain repellent is inadvertently applied, do not use the windshield wipers
until required for rain removal.
- WINDOW
HEAT - If any green ON Light remains extinguished during power test, the
heat system is inoperative. Observe the maximum airspeed limit of 250 kts
below FL 100 with any window heat inoperative. Window heat or the above
speed restriction will provide maximum protection against bird strikes at
any altitude where birds are likely to be encountered.
- Do
not operate windshield wipers on a dry windshield.
IRS
- During
fast realignment observe ALIGN Light extinguished within 30 seconds.
- If
time permits it is preferable to perform a full alignment of the IRS. A more
precise alignment will results.
LANDING
ON WET OR SLIPPERY RUNWAYS
- Arm
the Autobrake by selecting
Position 3.
- In
crosswind conditions, the crosswind crab angle should be maintained to
touchdown on very slippery runways.
- To
correct back to the centerline, reduce reverse thrust to idle and release
the brakes.
- In
crosswinds, do not exceed reverse thrust 70% N1.
- Do
not cycle brake pedals during manual braking.
- After
landing and/or if taxiing through water or slush do not retract flaps beyond
15°.
AIR
CONDITIONING and PRESSURIZATION
- The
battery switch should always be ON when using the airplane air conditioning
system since the protective circuits are DC. This will ensure protection in
the event of loss of AC power.
- Using
pneumatic air chart - Battery ... ON
(viz. předchozí), Isolation Valve Switch ... OPEN, APU Bleed Air
Switch ... OFF, Duct Pressure ... 20-25 psi (External Air Chart can maintain
20-25 psi with both packs operating), Pack Switch(es) ... AUTO or HIGH.
- If
external air cannot maintain 20-25 psi and APU is operating, Isolation Valve
Switch ... AUTO, APU Bleed Air Switch ... ON.
- When
cooling the airplane on the ground with the APU as the only source of
pneumatic chart, USE ONE PACK ONLY. Set Cabin Temperature Selector at AUTO
(straight up).
- Isolated
pack operation during engine start - After Engine No.2 stabilized: Isolation
Valve Switch ... CLOSE, Right Pack Switch ... AUTO, after start-up Engine
No.1: Isolation Valve Switch ... AUTO.
- MOVING
ENGINE BLEED AIR SWITCHES WHILE A STARTER IS ENGAGED CAN DAMAGE THE STARTER.
- Except
for engine start do not open APU Bleed Air Valve when LH Engine Bleed Air
Valve is open, or when Isolation and RH Engine Bleed Air Valves are open.
- With
Ground Air Supply connected and Isolation Valve open do not open APU Bleed
Air Valve.
AUXILIARY
POWER UNIT (APU)
- START
- Successful inflight starts have been demonstrated up to FL 350. Inflight
starts may be attempted at any altitude.
- APS
2000: After three consecutive aborted start attempts, a thirty minutes
cooling period is required.
- GARETT:
If there are multiple aborted start attempts, five minutes cooling is
required between the second and third start attempt. A wait of one hour is
required after the third start attempt.
- After
placing the APU Switch to OFF, wait 20 second to allow the air inlet door to
recycle prior to positioning the Battery Switch to OFF or next APU start.
FIRE
and OVERHEAT SYSTEM TEST
- FAULT/INOP
... 1/ Master Caution Lights, 2/ OVHT/DET System Annunciator Light, 3/ FAULT
Light, 4/ APU DET INOP Light illuminate.
- OVHT/FIRE
... 1/ Master FIRE WARN Lights, 2/ MASTER CAUTION Lights, 3/ OVHT/DET System
Annunciator Light, 4/ ENG 1 OVERHEAT Light, 5/ ENG 2 OVERHEAT Light, 6/
Engine No.1 Fire Warning Switch, 7/ WHEEL WELL Fire Warning Light (if AC
busses are powered), 8/ APU Fire Warning Switch, 9/ Engine No.2 Fire Warning
Switch illuminate.
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- ABORTED
ENGINE START if - 1/ No N1 rotation before the Engine Start Lever is raised
to IDLE, 2/ No oil pressure indication by the time the engine stabilized at
idle, 3/ No increase in EGT, within 10 seconds on the ground or 30 seconds
in flight, after the Engine Start Lever is raised to IDLE, 4/ No increase
in, or a very slow increase in N1 or N2 after EGT indication, 5/ EGT rapidly
approaching or exceeding the start limit.
- LOSS
OF THRUST ON BOTH ENGINES - Max EGT is 930°C, in moderate to heavy rain it
may take up to 3 minutes to accelerate to idle.
- ENGINE
LOW OIL PRESSURE - Accomplish this procedure when the engine oil pressure is
below 26 psi (yellow band) or when the amber LOW OIL PRESSURE Light
illuminates at a pressure below 13 psi (red band).
- If
engine oil pressure is in the yellow band, DO NOT TAKE-OFF.
- Oil
pressure in the yellow band is normal at low thrust settings.
- If
engine oil pressure is at or below the red radial - accomplish the ENGINE
FAILURE AND SHUTDOWN checklist.
- If
both busses off, only one APU start attempt is recommended. APU starting may
results in loss of IRS alignment.
- A
fully charged battery will provide a minimum of 30 minutes of standby power.
- ALTERNATE
FLAPS OPERATION - This procedure is accomplished if flaps fail to extend or
retract in response to Flap Lever selection and no asymmetry is indicated.
- SPEED
LIMIT 230 kts with Leading Flaps EXTENDED or in TRANSIT. Do not exceed 230
kts when flaps are extended by alternate (standby) system.
- When
the gear has been lowered manually, it cannot be retracted.
- After
manual reversion landing, thrust reverser operation will be slow and apply
steady brake pressure, do not modulate the brakes, because of inoperative
nose wheel steering and limited capacity of brake accumulators.
- FAIL
OF AIR/GROUND SENSING SYSTEM - Manually deploy the speed brakes immediately
upon touchdown. After landing with C/B pulled, some abnormal systems
reactions are: the pressurization system will maintain a small positive
pressure and inboard wheel brakes are inoperative at taxi speeds. DO NOT
OPERATE THE SPEED BRAKES IN FLIGHT.
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AIR
CONDITIONING, PRESSURIZATION and PNEUMATICS
- CABIN
RATE SELECTOR - DECR ... 50ft/min, INCR ... 2000 ft/min, INDEX ... 300
ft/min.
- Ram
door light extinguish when flaps up at cruising level, during climb may
illuminate.
- Duct
Overheat Light Illuminated -
Indicates passenger cabin duct overheat (over 88°C)
- Altitude
Warning Horn sounds when cabin reaches 10,000 feet altitude.
- ISOLATION
VALVE - AUTO ... Closes the isolation valve if all Engine Bleed Air and Air
Conditioning Pack Switches are ON. Opens the Isolation Valve automatically
if either Engine Bleed Air or Air Conditioning Pack Switch is positioned
OFF.
- PNEUMATIC
DUCT PRESSURE - Sensors are located before Air Conditioning Packs.
- Air
Conditioning Pack Switch in AUTO - With both packs operating, each pack
regulates to low flow. With one pack operating, regulates to high flow when
in flight with flaps up. When operating one pack from the APU (both Engine
Bleed Switches OFF), regulates to high flow.
AUTOMATIC
FLIGHT
- For
a dual A/P approach, the second NAV receiver must be tuned to the ILS frequency
and the corresponding A/P engaged in CMD prior to 800 feet RA.
- Second
A/P arms for automatic engagement after LOC and G/S capture and when descent
below 1500 feet RA occurs.
- An
A/T, F/D and/or Dual A/P go-around may be initiated below a radio altitude
of 2000 feet by pressing the go-around switches.
- CWS
- If attitudes acquired exceed autopilot limits, autopilot returns to
attitude limit when control force is released. When control pressure is
released, the A/P holds existing altitude. If roll control force is released
with less than 6 degrees of bank, autopilot rolls wing level and holds
existing heading (it is inhibited, when 1/ RA is below 1500 ft and gear
down, 2/ after F/D VOR capture with TAS 250 kts or less or 3/ after F/D LOC
capture in the APP mode).
- If
pitch is manually overridden while in ALT HOLD at the selected altitude, ALT
HOLD changes to CWS P. If control force is released within 250 feet of the
selected altitude, CWS P changes to ALT ACQ and the A/P returns to the
selected altitude and ALT HOLD engages. If the elevator force is held until
more than 250 feet from the selected altitude, pitch remains in CWS P.
- APPROACH
MODE remains active until A/Ps are disengaged and both F/Ds turned OFF or a
TO/GA switch is pressed.
- A/T
LIM is annunciated, when FMC N1 limit calculations become invalid, or if
either engine N1 is less than 18 %. The autothrottle computer then
calculates a single N1 limit for the affected engine(s).
- If
FLARE is not armed by approximately 350 feet RA, both A/Ps automatically
disengage.
- The
A/P FLARE manoeuvre starts at approximately 50 feet RA.
- The
A/T begins retarding thrust at approximately 27 feet RA so as to reach idle
at touchdown.
- The
A/T automatically disengages approximately 2 seconds after touchdown.
- The
A/P must be manually disengaged after touchdown.
- If
the G/A mode is selected after touchdown and prior to A/T disengagement, the
A/P s will disengage (during dual mode) and the A/Ts may command GA thrust.
- With
the GA engaged, the A/Ps maintain the airplane ground track existing
at GA engagement.
- Above
400 feet RA, other pitch and roll modes can be selected, below 400 feet RA
A/Ps must be disengaged to change either pitch or roll modes from GA.
- The
pitch mode cannot be changed from GA until sufficient nose-down trim has
been input to allow single channel A/P operation. This nose down-trim is
automatically added to reset the trim input at 400 feet and 50 feet RA on
the approach.
- If
the pitch mode is the first to be change from GA the roll mode changes to
CWS P.
- F/D
command bars retract from view during ILS approach at approximately 50 feet
RA.
- At
60 knots IAS, the F/D pitch command
changes from -10° to 15° nose-up and roll remains HDG SEL.
- Engage
F/D with F/D switches OFF - If a TO/GA Switch is pressed after 80 knots IAS
below 2000 feet AGL and prior to 150 seconds after lift-off.
- Engage
F/D in GA mode - 1/ Inflight below 2000 feet RA and not in the take-off
mode, 2/ either F/D switch ON or OFF, 3/ one or neither A/P engaged in CMD,
4/ TO/GA Switch pressed.
- Other
pitch or roll modes cal be selected above 400 feet RA. Bellow 400 feet both
F/D Switches must be turned OFF to exit the F/D GA mode. If the pitch mode
is changed first, F/D roll mode automatically changes to HDG SEL.
- Two
engine F/D GA - the F/D commands 15° nose-up pitch and roll to hold the
approach ground track at the time of GA engagement. After reaching a
programmed rate of climb, pitch commands hold the maneuvering speeds for
each flap setting.
- Single
engine F/D GA - the F/D pitch command is
initially 13° nose-up but as climb rate increases, F/D pitch commands
maintain a target speed.
- During
A/T operation, it is recommended that both PMCs be ON or both OFF, as this
produces minimum thrust lever separation. A/T take-offs may be performed
with both PMCs OFF.
- THR
HLD annunciates at 64 knots (84 knots for A/C with new model of A/T) to
indicate the A/T cannot change thrust lever position, but thrust levers can
be repositioned manually.
- After
lift-off, the A/T remains in THR HLD until 800 feet RA is reached. A/T
Annunciation then changes from THR HLD to ARM.
- Until
2 1/2 minutes after lift-off, automatic reduction to climb thrust is
inhibited when engaging LVL CHG or V/S mode. If VNAV, ALT ACQ or ALT HOLD is
engaged during this 2 1/2 minute period, automatic thrust reduction occurs
normally.
- If
A/T is in the N1 mode, pressing the N1 Switch changes the A/T mode from N1
to ARM.
- If
an engine fails while the A/T is in the N1 mode, the thrust lever of the
failed engine will advance forvard a few degrees and return to or below the
other thrust lever position.
- Pressing
the MCP Speed Select Switch select the speed mode if compatible with the
engaged AFDS pitch mode.
- If
A/T is in the SPEED mode, pressing the SPEED Switch
changes the A/T mode from SPEED to ARM.
- During
landing, the RETARD mode engages, reduce thrust and annunciates RETARD 2,5
sec. after FLARE mode engagement or at 27 feet radio altitude, whichever
occurs first.
- The
A/T go-around mode is armed when descending below 200 feet RA. Once armed,
the A/T go-around mode can be engaged until 2 second have elapsed after
landing touchdown.
- During
GA, A/T reduced setting produces a 1,000 to 2,000 fpm rate of climb after
first pressing either TO/GA Switch. After second pressing, full go-around
limit is set. During a single engine F/D go-around, the A/T will increase
thrust to the full N1 limit.
AUXILIARY
POWER UNIT
- If
installed, a 28 volt DC operated fuel pump, located in the No. 1 fuel tank
delivers fuel to the APU for starting. The DC pump operates automatically to
provide a positive fuel flow to the APU when the No. 1 tank pumps are not
operating.
ELECTRICAL
- Normal
indication of Voltmeters - AC ... 115 +/- 5 volts, DC ... 26 +/- 4 volts.
- Normal
indication of Frequency Meter ... 400 +/- 10 CPS.
- TR
voltage range ... 24 - 30 V.
- Battery
voltage range ... 22 - 30 V.
EMERGENCY
EQUIPMENT
- Crew
Oxygen - Normal pressure is 1850 psi (min 470 PSI / 2x Crew / +15°C, ...)
FLIGHT
CONTROLS
- A
flap load limiter is installed in the trailing edge flap drive system. When
the Flap Lever is in the 40 detent the flaps retract automatically to 30 if
the airspeed exceeds 158 knots. The Flap Lever does not move. The flaps
return to 40 when the airspeed is reduced to 153 knots.
- The
leading edge devices cannot be retracted by the standby hydraulic system.
FLIGHT
INSTRUMENTS
- RADIO
ALTITUDE Display changes color to yellow and flashes momentarily when
airplane descends below the decision height.
- AIRSPEED
TREND ARROW - Tip of arrow depict predicted airspeed within the next 10
second based on present airspeed and acceleration.
- YELLOW
SPEED BAND - With flaps extended: minimum maneuver speed / flap extended
placard speed for the next normal flap position. With flaps retracted:
minimum maneuver speed / speed, that provides a .3 G maneuver margin to high
speed buffet at high altitudes.
- The
normal localizer deviation scale is one degree per dot. When the course
deviation is approximately 5/8 degree deviation (5/8 dot) and VOR/LOC is
engaged, the scale automatically expands to indicate 1/2 degree deviation
per dot. The scale remains expanded until after landing rollout or on a
go-around with RA greater than 200 feet.
- The
alerting system of ILS deviation is armed when the airplane descends below
1500 feet RA with the LOC and G/S captured. If the Captain's or F/O's LOC
deviation exceeds one-half dot expanded scale (one-fourth dot standard
scale), the respective LOC scale changes color from white to yellow and the
miniature runway stem flashes. If the Captain's or F/O's G/S deviation
exceeds one dot deviation, the respective G/S scale changes color from white
to yellow and the G/S pointer flashes. G/S deviation alerting will not be
initiated below 100 ft RA, but continues to operate below this altitude if
the alert was triggered prior to descent below 100 ft RA.
- Each
pilot's alerting system self-tests upon becoming armed at 1500 feet RA. This
self-test generates a two-second LOC and G/S deviation alerting display on
each EADI.
- Vertical
movement of the Rising Runway Symbol represents the last 200 feet of radio
altitude. Zero feet RA is indicated as the top of the Runway Symbol rises to
the base of the Airplane Symbol.
- Course
Deviations - ILS 1 dot ... 1° normal scale, 1/2° expanded scale, VOR 1 dot
... 5°, NAV 1 dot ... 2 NM.
FUEL
- When
both Center Tank Fuel Pump Switches are turned OFF, the fuel scavenge
shut-off valve opens. Scavenge Jet Pump transfers the remaining center tank
fuel to main tank No. 1 for 20 minutes.
- Approximate
amounts of fuel for balance - Main tank ... 4,590 kg, Center tank ... 7,082
kg, Total ... 16,262 kg.
HYDRAULIC
POWER
- SYSTEMS
A and B ... 2500psi minimum, 3000psi normal, 3500psi maximum.
- BRAKE
PRESSURE 3000psi normal, 3500psi maximum, 1000psi normal recharge.
- With
fluid level at the top of the standpipe in the reservoir of system A, the
reservoir indicates approximately 1/4 full (22%).
- System
B has two standpipes. One standpipe supplies fluid to the engine driven pump
(min. 1/2 full or 40%) and the other to the electric motor pump. In case of
system B pressure is lost, sufficient fluid will be retained in the
reservoir for operation of the power transfer unit.
- The
units using SYSTEM A - ailerons, rudder, left thrust reverser, elevator and
elevator feel, inboard flight spoilers, alternate brakes, ground spoilers,
autopilot A, landing gear, normal nose wheel steering, and
the power transfer unit in the event of a pressure loss from the
system B engine driven pump.
- The
units using SYSTEM B - ailerons, rudder, right thrust reverser, leading edge
flaps and slats, autoslats, elevator and elevator feel, outboard flight
spoilers, normal brakes, yaw damper, autopilot B, trailing edge flaps, and
alternate nose wheel steering. System B pressure is available to power the
landing gear transfer unit in the event of a loss off engine No. 1.
- If
a leak occurs in the standby system, the system B reservoir fluid level
decreases and stabilizes at approximately 64 % or between the 1/2 and RFL.
ICE
and RAIN PROTECTION
- The
Wing Anti-Ice Switch automatically trips OFF at lift-off when the air/ground
sensor goes to the air mode.
LANDING
GEAR
- When
selecting RTO, the AUTO BRAKE DISARM
Light will illuminate for approximately 2 seconds to indicate self test
initiation. After 2 seconds the light will extinguish.
- RTO
is not activated until wheel speed reaches 60 knots. If the take-off is
rejected while speed is between 60 and 90 knots, with RTO selected, the AUTO
BRAKE DISARM Light illuminates, and autobraking is not initiated.
- Air/ground
Safety Sensors are located on the right main gear and nose gear.
NAVIGATION
- If
the airplane is moved during alignment or fast realignment (ALIGN Light
illuminated), the IRS's automatically begin the full 10-minute alignment
procedures over again.
POWER
PLANT
- MINIMUM
OIL QUANTITY: 3US Gal or 75% full.
- AIRBORNE
VIBRATION MONITOR - Indicates engine vibration level in the fan section of
the engine.
- LOW
IDLE LIGHT Illuminated when - The thrust lever for either engine is near
idle and the MEC on either engine is not commanded to maintain high idle RPM
inflight. The speed of either engine is below 25% N1 inflight.
- The
minimum engine speed for all flight phases is high idle, which varies with
flight conditions. The average high idle setting is approximately 32% N1. To
reduce braking activity, engine idle speed is reduced to low idle,
approximately 22% N1, four seconds after touchdown.
- PMC
INOP Light illuminated when - Engine speed is above 46% N2, or the PMC is
selected OFF.
- REVERSER
Light illuminated when - One or more of the following has occurs: 1/ The
isolation valve or the thrust reverser control valve is not in the commanded
position, 2/ The thrust reverser sleeve position sensors are in disagreement
for more than two seconds, 3/ The
auto restow circuit has been activated.
- IGN
L is powered by the AC transfer bus, IGN R is powered by the AC standby bus,
The Ignition Select Switch is bypassed when the Engine Start Switch is in
FLT.
- The
thrust reverser can be deployed when either radio altimeters senses less
than 10 feet altitude, or when the air/ground safety sensor is in the ground
mode. Movement of the Reverse Thrust Levers is mechanically restricted until
the Forward Thrust Levers are in the idle position.
- ABNORMAL
START ADVISORY SYSTEM (EIS installed) - During an engine start, the alert
indication will occurs if: 1/ The EGT exceeds
a calculated EGT limit based on inputs of N2 and the outside air temperature
as supplied by the TAT probe, 2/ The EGT reaches 725°C, 3/ The engine fails
to accelerate properly after N2 reaches 32%. If a normal start occurs, the
alert indication can be reset by pressing the Fuel Used Reset Switch on the
EIS. The alert indication is automatically reset when zero fuel flow is
sensed.
WARNING
SYSTEM
- TAKE-OFF
CONFIGURATION WARNING - 1/ Stabilizer trim is NOT in the green band range,
or 2/ Trailing Edge Flaps are NOT in the flap 5 through 15 take-off range,
or 3/ Leading Edge Flaps are NOT in the correct position for take-off, or 4/
Speed Brake Lever is NOT in the DOWN position, or 5/ Parking Brake SET.
- Aural
Indication, Flaps 15°, gear UP - Either Forward Thrust Lewer between idle
and approximately 10 degrees and the opposite thrust lever greater than
approximately 30 degrees below 1500 feet RA, the Landing Gear Warning Horn
can be silenced with the Horn
Cutout Switch.
- Inputs
to the GPWS computer are - Radio altitude from the Captain's Radio
Altimeter, Mach/airspeed and barometric altitude from Air Data Computer
No.1, Glide slope deviation signals from the No.1 Glide Slope Receiver, and
Landing Gear Lever and flap position. The loss of an input will deactivate
only the affected mode(s).
- APPROACHING
MINIMUM - At 80 feer above decision height.
- When
the Captain's EFIS Control Panel is set to 10 feet or less, the decision
height callouts will not sound. Once a decision height callout has sounded,
it will not function again until after the airplane climbs above 1000 feer
RA.
- WARNING
AND CAUTION SUMMARY - 1/ A/T flashing amber light ... A/T airspeed
deviation, 2/ A/P flashing amber light ... A/P revert to CWS, 3/ Flashing
pointer of GS or LOC ... GS or LOC deviation, 4/ Intermittent horn ...
unsafe take-off configuration.
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737 Classic Tech Revision Notes
