Flybe AT72 at Helsinki on Aug 19th 2012, runway excursion

Last Update: August 27, 2012 / 21:28:45 GMT/Zulu time

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Incident Facts

Date of incident
Aug 19, 2012

Classification
Incident

Cause
Runway excursion

Airline
Flybe Finland (former Finncomm)

Flight number
BE-3992

Departure
Tampere, Finland

Destination
Helsinki, Finland

Aircraft Registration
OH-ATH

Aircraft Type
ATR ATR-72-200

ICAO Type Designator
AT72

A Flybe Finland (former Finncomm) Avion de Transport Regional ATR-72-500, registration OH-ATH performing flight BE-3992 from Tampere to Helsinki (Finland), performed an instrument approach to Helsinki Vantaa Airport's runway 22L in good weather and calm winds, however with the Travel Limiter Unit (TLU) stuck at the high speed setting intended to reduce forces on the tail plane by limiting available rudder travel above 185 KIAS. After touch down the aircraft veered right off the runway, the right main gear departed paved surface and went over grass until the crew was able to steer the aircraft back onto the runway. There were no injuries and no damage to the aircraft or runway.

Finland's Onnettomuustutkintakeskus (SIAF, Safety Investigation Authority Finland) opened an investigation into the serious incident. The lead investigator said, that the rudder pedals practically did not move at all after landing. The investigation will also look into other occurrences with the TLU stuck at the high speed settings including the accident of Air Dolomiti AT72 I-ADCD in Munich, see Accident: Dolomiti AT72 at Munich on May 17th 2012, smoke in cockpit, engine problem, runway excursion on landing. The similiarities between OH-ATH and I-ADCD, if there are any, however are limited to the TLU stuck at the high speed setting, OH-ATH had no other technical difficulties.

Metars:
EFHK 190520Z 21004KT 9999 FEW005 SCT027 BKN060 17/16 Q1012 NOSIG
EFHK 190450Z 23003KT 9000 FEW003 BKN070 17/15 Q1012 NOSIG
EFHK 190420Z 24004KT 9000 -RA FEW003 BKN075 16/16 Q1012 NOSIG
EFHK 190350Z 25003KT 8000 FEW003 BKN080 BKN130 16/15 Q1012 NOSIG
EFHK 190320Z 23004KT CAVOK 16/15 Q1013 NOSIG
EFHK 190250Z 25003KT CAVOK 16/15 Q1013 NOSIG
EFHK 190220Z 23003KT CAVOK 16/15 Q1013 NOSIG
EFHK 190150Z 24003KT CAVOK 16/15 Q1013 NOSIG
EFHK 190120Z 24003KT CAVOK 16/15 Q1013 NOSIG
Incident Facts

Date of incident
Aug 19, 2012

Classification
Incident

Cause
Runway excursion

Airline
Flybe Finland (former Finncomm)

Flight number
BE-3992

Departure
Tampere, Finland

Destination
Helsinki, Finland

Aircraft Registration
OH-ATH

Aircraft Type
ATR ATR-72-200

ICAO Type Designator
AT72

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