BH Airlines AT72 at Copenhagen on Jan 14th 2013, runway excursion
Last Update: September 12, 2013 / 18:33:28 GMT/Zulu time
Incident Facts
Date of incident
Jan 14, 2013
Classification
Report
Cause
Runway excursion
Airline
BH Airlines
Flight number
JA-406
Departure
Sarajevo, Bosnia and Herzegovina
Destination
Copenhagen, Denmark
Aircraft Registration
E7-AAD
Aircraft Type
ATR ATR-72-200
ICAO Type Designator
AT72
Denmark's HCL (Havarikommission, Accident Investigation Board) released their final report concluding the probable cause of the incident was:
Upon landing the right hand propeller electronic control (PEC) system failed. An inadequate action and not according to SOP, the reverse thrust with one LO PITCH light not illuminated was initiated and together with left hand crosswind component at 16 knots, worsening the asymmetric forces to the left.
The HCL reported: "The PEC (Propeller Electronic computer) had two fault codes (fault code 03 and 27). Both codes indicated failure to the ground fine pitch system and would appear when the PLA (power lever angle) was moved to a position below flight idle and for some reason the propeller blade did not follow the command. Normal taxi and reverse functions would be unavailable."
Maintenance completed the relevant actions in the troubleshooting sections of the maintenance manual, but did not find any anomaly. The PEC was reset, an engine run up conducted with the engine and propeller responding normally, and the aircraft was returned to service.
Incident Facts
Date of incident
Jan 14, 2013
Classification
Report
Cause
Runway excursion
Airline
BH Airlines
Flight number
JA-406
Departure
Sarajevo, Bosnia and Herzegovina
Destination
Copenhagen, Denmark
Aircraft Registration
E7-AAD
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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