Incident Embraer EMB-145LR JU-1800, Tuesday 16 November 2021

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Date:	Tuesday 16 November 2021
Time:	15:35 LT
Type:	Embraer EMB-145LR
Owner/operator:	Aero Mongolia Airlines
Registration:	JU-1800
MSN:	145800
Fatalities:	Fatalities: 0 / Occupants: 49
Other fatalities:	0
Aircraft damage:	Minor
Category:	Incident
Location:	Ulaanbaatar-Chinggis Khaan International Airport (UBN/ZMCK) - Mongolia
Phase:	Take off
Nature:	Passenger - Scheduled
Departure airport:	Ulaanbaatar-Chinggis Khaan International Airport (UBN/ZMCK)
Destination airport:
Investigating agency:	AAIB Mongolia
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The no.2 main wheel tire of the aircraft burst during take-off from Ulaanbaatar-Chinggis Khaan International Airport, Mongolia.

Probable causes
The EMB-145 JU-1800 aircraft began taxiing for take off from at 07:30:29 UTC on 16 November 2021 and began rolling for take off at 07:35:46 UTC. At speed V = 136Kts, the second wheel tire burst and the tire rotated off the ground at a speed of VR = 158 Kts at 07:36:26 at about 1960 meters from the beginning of the runway.
EMB-145 JU-1800's 2nd wheel tire pressure was lower than normal, exceeding the flight limit by several times in 5 minutes and 17 seconds, and continuing the runway.
During the take-off rotation, tire wear and fatigue (due to overstress) occurred and the burst occurred.

Contributing factors
- Uneven adjustment and inability to adjust the gas pressure of the aircraft tires.
- Frequent in-flight and take-off flight violations can lead to tire wear and fatigue.

Accident investigation: