Altyn T134 at Osh on Dec 28th 2011, hard landing, gear collapse and plane rolled on back

Last Update: April 22, 2013 / 13:37:38 GMT/Zulu time

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Incident Facts

Date of incident
Dec 28, 2011

Classification
Accident

Flight number
QH-3

Destination
Osh, Kyrgyzstan

Aircraft Registration
EX-020

Aircraft Type
TUPOLEV Tu-134

ICAO Type Designator
T134

Airport ICAO Code
UAFO

An Altyn Air (alias Kyrgyzstan Altyn) Tupolev TU-134A, registration EX-020 performing flight QH-3 from Bishkek to Osh (Kyrgyzstan) with 82 passengers and 6 crew, suffered a hard landing resulting in the right main gear collapse, right main wing separation and the airplane rolling on its back while landing on Osh's runway 12 in fog and low visibility around 12:15L (06:15Z), official times of landing varying from 12:05L to 12:48L. The aircraft came to a stop on soft ground about 10 meters off the right runway edge. A fire fed by a fuel leak off the left wing erupted which was quickly extinguished by airport emergency services. One passenger received serious injuries, 24 people received minor injuries (concussions, bruises), 16 of which were taken to local hospitals.

Osh Airport offers a runway 12/30 of 2614 meters/8600 feet length, runway 12 features an ILS approach (DH 67 meters/220 feet for Category C Aircraft).

On Jan 11th 2012 Russia's Interstate Accident Investigation Commission (MAK) confirmed the right hand main gear collapsed and the right main wing separated as result of a hard landing in adverse weather conditions. The MAK is working on reading out the flight recorders. 5 of the 88 people on board received "moderate injuries".

On Apr 22nd 2013 a letter of Kyrgyzstan's Transport Prosecutor to Kyrgyzstan's Parliament of April 2012 became known indicating that the airport had been approved to operate in Category I weather minima without being properly equipped and should never have been approved to operate in these conditions, as a result of the investigation the aerodrome has been limited to operate according to visual flight rules only. The aircraft was not properly equipped to conduct the flight lacking a GPWS as well as passenger oxygen, the crew was not qualified to conduct the flight and the oversight by the airline's dispatch and chief pilot was insufficient, the Transport Prosecutor mentioned that the responsibles to oversee flight operation could not answer even the most basic questions. Kyrgyzstan's Civil Aviation Authority failed to oversee the operation of the airline as well. While on approach to Osh the crew was informed about weather conditions permitting an approach, the data transmitted however were incorrect and the actual weather did not even permit an approach. Instead of being established on the approach 10.5km/5.6nm before touchdown the aircraft was established on the extended centerline only about 4.02km/2.17nm before touchdown, however was above the glidepath. A steep dive to reach the runway resulted in a touch down at a high rate of descent and vertical forces beyond the design limit of the aircraft (more than 2.5G), as result of the high impact forces the aircraft did not even bounce but just started to disintegrate, reaching 58 degrees of right roll 270 meters past the runway threshold, between 270 and 550 meters past the threshold the tail fin separated, the aircraft was completely upside down 600 meters past the threshold and came to a stop about 1000 meters past the threshold of the runway. The main door was jammed, the occupants escaped through other doors and the overwing exits. No serious injury occurred, 6 people needed hospital treatment with minor injuries. (Editorial note: The Interstate Aviation Committee MAK, normally known for extraordinary speed in concluding their investigations, have so far not yet released anything beyond the initial notice of the accident and investigation being opened).

Metars:
UAFO 280730Z 03001MPS 0300 R12/0550 FG VV001 00/00 Q1024 R12/19 / / 50 NOSIG RMK QFE692/0923 BASE050M
UAFO 280700Z 02002MPS 0300 R12/0550 FG VV001 00/00 Q1023 R12/19 / / 50 TEMPO 0300 VV002 RMK FZFG QFE691/0922 BASE050M
UAFO 280630Z 02002MPS 0500 R12/0750 FZFG VV002 M00/M00 Q1024 R12/19 / / 50 NOSIG RMK QFE692/0923 BASE060M
UAFO 280600Z 04002MPS 0500 R12/0750 FG VV002 00/00 Q1024 R12/19 / / 50 NOSIG RMK QFE692/0922 BASE060M
UAFO 280530Z 08002MPS 0300 R12/0550 FZFG VV002 M00/M00 Q1024 R12/19 / / 50 NOSIG RMK QFE692/0922 BASE060M
UAFO 280500Z 09002MPS 0300 R12/0550 FZFG VV002 M01 / M01 Q1024 R12/19 / / 50 NOSIG RMK QFE692/0922 BASE060M
UAFO 280430Z 00000MPS 0300 R12/0550 FZFG VV002 M01/M01 Q1023 R12/19 / / 50 NOSIG RMK QFE692/0922 BASE060M
UAFO 280400Z 00000MPS 0100 R12/0200 FZFG VV001 M01/M01 Q1023 R12/19 / / 50 NOSIG RMK QFE691/0922 BASE050M
Incident Facts

Date of incident
Dec 28, 2011

Classification
Accident

Flight number
QH-3

Destination
Osh, Kyrgyzstan

Aircraft Registration
EX-020

Aircraft Type
TUPOLEV Tu-134

ICAO Type Designator
T134

Airport ICAO Code
UAFO

This article is published under license from Avherald.com. © of text by Avherald.com.
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