Narrative:
Taban Air flight 6243, a Boeing 737-400, suffered severe vibrations on touchdown on runway 33 at Ardabil Airport, Iran. The right-hand main gear leg folded inwards and the aircraft tilted to the right, causing the no.2 engine to hit the runway.
The aircraft was ferried to Mashhad on May 1 and test flown after repairs on June 18, 2017. It re-entered service on June 21.
Main cause:
The main cause of the crash was a technical failure in the Shimmy Damper of the right-hand landing gear system.
Contributory factors:
- Failure to comply with the pilot's operating instructions
- Lack of technical supervision and disregard for the manufacturer's publications
- Weak design of landing gear control systems) Inspection of Shimmy Damper system and poor Torsion Link metallurgy
- Lack of quality oversight of Taban Airlines technical training units
Runway mishap
OITL 270500Z 25006KT CAVOK 06/M02 Q1017
06:00 UTC / local time:
OITL 270600Z 20023KT 9999 FEW035 SCT200 13/M02 Q1016
Boeing 737 main gear torsion links
| Status: | Accident investigation report completed and information captured |
| Date: | Monday 27 March 2017 |
| Time: | 0.39423203468323 |
| Type: |  Boeing 737-4Q8 |
| Operator: | Taban Air |
| Registration: | EP-TBJ |
| MSN: | 28202/3009 |
| First flight: | 1998-03-02 (19 years 1 month) |
| Total airframe hrs: | 46231 |
| Cycles: | 25674 |
| Engines: | 2 CFMI CFM56-3C1 |
| Crew: | Fatalities: 0 / Occupants: 12 |
| Passengers: | Fatalities: 0 / Occupants: 173 |
| Total: | Fatalities: 0 / Occupants: 185 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Repaired |
| Location: | Ardabil Airport (ADU) ( Iran)
|
| Phase: | Landing (LDG) |
| Nature: | Domestic Scheduled Passenger |
| Departure airport: | Mashhad Airport (MHD/OIMM), Iran |
| Ardabil Airport (ADU/OITL), Iran | |
| Flightnumber: | TBN6243 |
Taban Air flight 6243, a Boeing 737-400, suffered severe vibrations on touchdown on runway 33 at Ardabil Airport, Iran. The right-hand main gear leg folded inwards and the aircraft tilted to the right, causing the no.2 engine to hit the runway.
The aircraft was ferried to Mashhad on May 1 and test flown after repairs on June 18, 2017. It re-entered service on June 21.
Probable Cause:
Main cause:
The main cause of the crash was a technical failure in the Shimmy Damper of the right-hand landing gear system.
Contributory factors:
- Failure to comply with the pilot's operating instructions
- Lack of technical supervision and disregard for the manufacturer's publications
- Weak design of landing gear control systems) Inspection of Shimmy Damper system and poor Torsion Link metallurgy
- Lack of quality oversight of Taban Airlines technical training units
Accident investigation:
 |
|
Classification:
Landing gear collapseRunway mishap
METAR Weather report:
05:00 UTC / local time:OITL 270500Z 25006KT CAVOK 06/M02 Q1017
06:00 UTC / local time:
OITL 270600Z 20023KT 9999 FEW035 SCT200 13/M02 Q1016
Photos
Boeing 737 main gear torsion links
Video, social media
Mashhad Ardabil flight lands with flat tire, passengers OK https://t.co/MFpGDdTXF8 #Iran #IranNews pic.twitter.com/bDfi091IdO
Iran News by Kodoom (@KodoomIranNews) March 27, 2017
Aircraft history
| date | registration | operator | remarks |
|---|---|---|---|
| 2 March 1998 | TC-APP | Boeing | first flight |
| 31 March 1998 | TC-APP | Pegasus | delivered |
| 2 Nov. 1998 | TC-APP | Winair | leased |
| 20 Nov. 1999 | TC-APP | Oman Air | leased |
| 9 June 2002 | TC-APP | Pegasus | returned |
| 28 March 2003 | SP-KPI | Polonia | leased from ILFC |
| 20 Dec. 2004 | N401LF | ILFC | returned |
| 23 Feb. 2005 | VT-SJB | Air Sahara | leased |
| 18 May 2008 | OO-VET | Brussels Airlines | leased |
| 19 Nov. 2013 | EY-754 | Tajik Air | |
| 8 July 2015 | EY-754 | Taban Airlines | leased |
| 26 July 2016 | EP-TBJ | Taban Airlines | new registration |
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Mashhad Airport to Ardabil Airport as the crow flies is 1012 km (632 miles).
Accident location: Approximate; accuracy within a few kilometers.
Distance from Mashhad Airport to Ardabil Airport as the crow flies is 1012 km (632 miles).
Accident location: Approximate; accuracy within a few kilometers.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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