Loganair AT42 at Aberdeen on Aug 27th 2022, both engines show 0 torque in flight, multiple electrical failures

Last Update: November 27, 2023 / 18:32:40 GMT/Zulu time

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Incident Facts

Date of incident
Aug 27, 2022

Classification
Incident

Airline
Loganair

Flight number
LM-72

Departure
Aberdeen, United Kingdom

Destination
Sumburgh, United Kingdom

Aircraft Registration
G-LMRC

Aircraft Type
ATR ATR-42

ICAO Type Designator
AT42

A Loganair Avions de Transport Regional ATR-42-500, registration G-LMRC performing flight LM-72 from Aberdeen,SC to Sumburgh,SC (UK), was climbing out of Aberdeen when the crew stopped the climb at about 10500 feet after multiple electrical faults occurred and both engines (PW127) showed zero torque. The aircraft descended to 5000 feet, maintained 5000 feet for about 7 minutes and subsequently positioned for a safe landing on Aberdeen's runway 34 about 35 minutes after departure.

The AAIB rated the occurrence a serious incident and opened an investigation.

The British AAIB reported: "During the departure climb the aircraft suffered a loss of multiple electrical systems and the flight crew reported that all the electronic instrument display screens went blank. The displays returned but some system faults remained. The aircraft returned to Aberdeen where it landed normally. A fault with the 1PA electrical contactor was found which had probably contributed to the severity of the incident, but the underlying cause(s) are still under investigation. The aircraft manufacturer published an Airworthiness Operator Message (AOM 2022/04) in October 2022 to recommend that all operators of this aircraft type perform an operational test of the 1PA contactor. The manufacturer is currently in discussions with EASA about publishing an Airworthiness Directive to mandate this initial test and a repetitive test." The investigation is ongoing.
Incident Facts

Date of incident
Aug 27, 2022

Classification
Incident

Airline
Loganair

Flight number
LM-72

Departure
Aberdeen, United Kingdom

Destination
Sumburgh, United Kingdom

Aircraft Registration
G-LMRC

Aircraft Type
ATR ATR-42

ICAO Type Designator
AT42

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