Created Wednesday, Feb 17th 2021 12:01Z, last updated Tuesday, May 18th 2021 18:22Z
An Azman Air Boeing 737-500, registration 5N-SYS performing flight
ZQ-2325 from Abuja to Lagos (Nigeria) with 49 passengers and 6 crew, landed on Lagos' runway 18R but blew a number of main tyres on roll out at 17:59L (16:59Z). The aircraft became disabled on the runway forcing the temporary closure of the runway over night.
A passenger reported they had blowouts of aircraft tyres (plural) after landing, they needed to spend another 30 minutes on board of the aircraft until they could disembark.
Ground observers reported the main tyres were "completely in tatters".
In the morning of Feb 17th 2021 the Airport Authority reported the runway was available again around 07:00L (06:00Z).
On May 18th 2021 Nigeria's AIB (NAIB) released their preliminary report stating the aircraft had been dispatched with the Anti-Skid system being inoperative, the crew had taken the relevant documentation into account. The AIB summarized the sequence of events:
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.
The AIB stated the aircraft received substantial damage but rated the occurrence a serious incident.
The AIB described the damage: "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."
Related NOTAM:
A0031/21 NOTAMN
Q) DNKK/QMRLC/IV/NBO/A/000/999/0635N00319E005
A) DNMM B) 2102162130 C) 2102170330
E) RWY 18R CLSD DUE DISABLED AIRCRAFT
