UTAir AT72 at Tomsk on Aug 28th 2017, runway excursion on landing

Last Update: September 12, 2017 / 17:55:07 GMT/Zulu time

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Incident Facts

Date of incident
Aug 28, 2017

Classification
Incident

Airline
UTAir

Flight number
UT-131

Destination
Tomsk, Russia

Aircraft Registration
VQ-BLD

Aircraft Type
ATR ATR-72-200

ICAO Type Designator
AT72

Airport ICAO Code
UNTT

A UTAir Avions de Transport Regional ATR-72-212A, registration VQ-BLD performing flight UT-131 from Surgut to Tomsk (Russia) with 62 passengers and 4 crew, landed on Tomsk's runway 21 in good weather conditions at about 08:40L (01:40Z) but veered left off the runway and came to a stop of soft ground. There were no injuries, the aircraft sustained no damage.

The aircraft was unable to perform the further sectors of flight UT-131 to Krasnojarsk and Irkutsk, a replacement aircraft was dispatched to Tomsk and performed the remaining sectors with a delay of 6 hours.

Rosaviatsia rated the occurrence a serious incident and opened an investigation.

On Sep 12th 2017 Rosaviatsia reported the first officer was pilot flying. The weather conditions were "simple", the approach was stable with Vref at 112 KIAS. Shortly after the main gear registered being on ground the aircraft deviated to the right, the first officer applied left rudder and the aircraft began to veer left of the runway center line. Seeing that the aircraft crossed the runway center line at about 105 KIAS the first officer applied a strong input on the right hand rudder, Rosaviatsia commented that application of right rudder pedal was disproportionate and the aircraft now veered to the right, slowing from 90 to 70 KIAS over the next 250 meters with the effectivity of the rudder reducing. No corrective action occurred. The captain, observing the aircraft 15 degrees right off the runway heading slowing through 75 KIAS stepped into left rudder, applied asymmetric brakes and used the nose wheel steering wheel, as result the aircraft was now 30-35 degrees to the left off the runway heading. The captain applied maximum brakes and intense reverse, the speed reduced to 40 KIAS. The aircraft departed the runway at a heading of 178 degrees at 25 KIAS and subsequently stopped on a heading of 202 degrees with the right hand main gear 1.1 meters off the runway. There was no damage to the aircraft and no damage to the aerodrome.

The investigation commission concluded, that the occurrence had to be rated an incident, the cause of the incident was a wrong handling technique employed by the first officer and a wrong intervention by the captain to correct the handling problem.

Metars:
UNTT 280300Z 06002MPS CAVOK 14/08 Q1014 R21/090060 NOSIG RMK QFE746=
UNTT 280230Z VRB01MPS CAVOK 13/08 Q1014 R21/090060 NOSIG RMK QFE746=
UNTT 280200Z VRB01MPS CAVOK 10/07 Q1015 R21/090060 NOSIG RMK QFE746=
UNTT 280130Z 00000MPS CAVOK 09/06 Q1015 R21/090060 NOSIG RMK QFE746=
UNTT 280100Z 00000MPS CAVOK 06/05 Q1015 R21/090060 NOSIG RMK QFE746=
UNTT 280030Z 00000MPS CAVOK 05/04 Q1015 R21/090060 NOSIG RMK QFE746=
UNTT 280000Z 00000MPS 9999 MIFG NSC 03/02 Q1015 R21/090060 NOSIG RMK QFE746=
UNTT 272330Z 00000MPS 9999 MIFG NSC 03/02 Q1015 R21/090060 NOSIG RMK QFE746=
UNTT 272300Z 00000MPS CAVOK 03/03 Q1015 R21/090060 NOSIG RMK QFE746=
Incident Facts

Date of incident
Aug 28, 2017

Classification
Incident

Airline
UTAir

Flight number
UT-131

Destination
Tomsk, Russia

Aircraft Registration
VQ-BLD

Aircraft Type
ATR ATR-72-200

ICAO Type Designator
AT72

Airport ICAO Code
UNTT

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