Iran Aseman at Tabriz on Aug 26th 2010, runway excursion into a ditch

EP-ASL with the nose in the ditchAn Iran Aseman Fokker 100, registration EP-ASL performing flight EP-773 from Tehran Mehrabad to Tabriz (Iran) with 103 passengers and 7 crew, overran runway 30R while landing during a thunderstorm and rain in Tabriz around 22:45L (18:15Z) and came to a stop in a ditch about 500 meters past the runway end and about 150 meters past the end of paved surface. The airplane was evacuated, the passengers were taken to the terminal about 10 minutes later. Two people received minor injuries. The airplane received substantial damage to its nose cone.

Tabriz Airport reported that all occupants were safely evacuated, no injuries occurred.

The airline confirmed the airplane suffered a runway excursion reporting some damage to the nose section of the aircraft. No injuries occurred.

Emergency services reported two people were treated on scene for minor injuries.

An all operators message by Fokker Services reports, that after touch down main tyres #2 and #4 burst. Although reverse thrust was selected the aircraft overran the end of the runway and came to a stop in a ditch about 150 meters past the paved surface of the runway. The passengers evacuated via slides. The aircraft sustained substantial damage to its forward pressure bulkhead, forward belly compartment and nose gear bay. The message said: "Reportedly the landing was performed in wet and windy conditions on a wet runway with one thrust reverser deactivated."

Fokker services continued that the investigation revealed the brake lines on the main gear were cross connected and a thrust reverser stop had been wrongly adjusted so that not more than idle thrust could be selected with one thrust reverser deactivated.

As result of the investigation a review of the documentation has been performed, one figure showing a wrong routing of the hydraulic lines was corrected. Additional easy checks were introduced to verify that the thrust reverser stop were correctly adjusted, a related service bulletin was released.

Tabriz's runway 12L/30R is 3556 meters/11800 feet long at an elevation of 4450 feet (1356 meters).

Metars:

OITT 262050Z 09008KT 9999 FEW035 FEW040CB SCT170 17/12 Q1014 A2995

OITT 262000Z 14010KT 8000 FEW035 FEW040CB BKN170 17/14 Q1014 A2996

OITT 261900Z 12012KT 4000 TSRA FEW015 SCT035 SCT040CB OVC170 17/16 Q1014 A2995

OITT 261750Z 05018KT 4000 TSRA SCT035 SCT040CB OVC170 16/16 Q1014 A2995

OITT 261700Z 31026KT 1500 +TSRA SCT035 SCT040CB OVC170 16/16 Q1014 A2996

OITT 261600Z 35016KT 6000 TS VCSH SCT035 SCT040CB OVC170 19/14 Q1011 A2988

OITT 261500Z 36022KT 3000 TSSHRA SCT035TCU SCT040CB BKN100 20/15 Q1010 A2985

Relevant NOTAM:

A2200/10 - DISABLD AIRCRAFT WITH HGT 10M EXIST ON EXTENDED

RWY 12L CL 150M AFTER THR RWY 12L, THR RWY 12L