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On 16 Feb 2021 - 737-500, 5N-SYS (28565/2944), operated by Azmaan Air was landing on Runway 18R at Lagos, Nigeria in stormy conditions. According to the ATC, the aircraft touched down beyond the touchdown zone.

The aircraft remained on the active runway. No. 1, 2, 3 & 4 main landing gear tyres were found burst. Tyres latex were heavily worn-out with heavy canvass. Tyre debris was ingested into No 1 engine and the left rear-side of the fuselage.

There were no injuries

DNMM 161700Z 07013G26KT 5000 -TSRA BKN140 FEW020CB 31/25 Q1008 TEMPO -TSRA=



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*** Updated 14 Nov 2021 ***

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5N-SYS Tire damage

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.

5N-SYS Fuselage damage

A damaged section of the fuselage due tire debris

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