Damaged number 1 & 2 main wheel tyres
Preliminary report
The Nigerian AIB issued their preliminary report on 19 May 2021.
History of the flight
On 16th February, 2021, at about 16:54 h, a Boeing B737-500 aircraft with nationality
and registration marks 5N-SYS operated by Azman Air Service Limited departed Nnamdi
Azikiwe International Airport, Abuja (DNAA) on a scheduled passenger flight to Murtala
Muhammed Airport, Lagos (DNMM) as AZM2325 on an Instrument Flight Rules (IFR) flight
plan. On board were 55 persons inclusive of six crew members with a fuel endurance of
3 hours 20 minutes. This flight was the last of the six sectors for the day. The Captain
was the Pilot Flying (PF) and the First Officer was the Pilot Monitoring (PM).
The cockpit crew stated during interview that all necessary checks were carried out and
reference was made to relevant documents on anti-skid inoperative conditions before
departing Abuja. The take-off, climb, cruise and the initial approach phases of flight were
normal.
According to the cockpit crew, on approach at about 600 ft touchdown, there was heavy
rain and windshear warning. On reaching Decision Altitude (DA), the Captain carried out
a missed approach and requested for runway 36L from the Approach Control but was
vectored around traffic to runway 18R. AZM2325 was advised by the ATC of the prevailing
weather condition, asked to state intention and if unable to make it, elect to divert to
alternate.
At 17:53 h, AZM2325 stated “we would like to make one approach, runway 18R, if not
[successful] we would divert to our alternate…”
According to the crew, at short final, the Approach Light became visible even though
there was some rain. Performance calculations were carried out, the aircraft landing
distance was within the landing limits and the visibility was good.
AZM2325 landed on runway 18R and was instructed to continue with Ground Control on
121.9MHz. The Captain stated “We landed as normal at the 1000 ft marker on RWY 18R even though the runway was wet. Speed brakes and reversals were used on landing and
I also applied manual brake pressure while still on the wet runway. I felt some vibration
after getting on the dry part of the runway. I sensed we had burst tyres and brought the
aircraft to a stop.”
At 17:59 h, AZM2325 reported “121.9 MHz; we have an issue; we are on the runway… we need assistance please. We’re on the runway, we have an engine indication…we have
an engine indication, number one engine, we’re on the runway.”
At 18:00 h ATC replied, AZM2325 the fire unit would be with you shortly. They’ve been
advised and are proceeding to runway 18R. Please report when you have the fire unit
with you. We can observe them moving towards you on the runway.
At 18:02 h, AZM2325 confirmed “we have the fire truck here, I just need them to tell us
the extent of what is going on.”
At 18:03 h, ATC stated “AZM2325 we advised the unit to proceed with the tow truck to
assist you. But the fire unit will be with you shortly.”
At 18:04 h, ATC asked “confirm you have a burst tyre on runway?” The Cockpit crew
replied in the affirmative.
At 18:16:53 h, the ATC told AZM2325 “your passengers would be evacuated shortly and
please report when you have the tow truck in sight”.
At 18:22:56 h, the ATC told AZM2325 “your station manager is aware and they are coming
to you to assist in the evacuation of the passengers”. The captain stated “We then waited
forty-five (45) minutes for stairs and buses to disembark the passengers.”
At 19:07 h, the fire unit advised ATC that disembarkation of passengers was complete
with only the crew and passenger baggage on board the aircraft.
All passengers disembarked uninjured.
The incident occurred in daylight and Visual Meteorological Conditions (VMC) prevailed.
A damaged section of the fuselage due tire debris |
5N-SYS 737-500 Multiple tire burst on landing
