Hawaiian A332 at Los Angeles on Sep 22nd 2022, trim motor failure causes erratic movements of trim wheel
Last Update: October 27, 2022 / 13:25:08 GMT/Zulu time
Incident Facts
Date of incident
Sep 22, 2022
Classification
Incident
Airline
Hawaiian Airlines
Flight number
HA-3
Departure
Los Angeles, United States
Destination
Honolulu, United States
Aircraft Registration
N393HA
Aircraft Type
Airbus A330-200
ICAO Type Designator
A332
The NTSB reported the primary trim motor failed causing the erratic movements of the trim wheel. No notification of any faults were displayed on the ECAM. The crew returned to Los Angeles.
The aircraft returned to service after about 2 days on the ground.
On Oct 27th 2022 the NTSB released their preliminary report reporting the sequence of events:
As the airplane was climbing through Flight Level (FL) 360 after departure from LAX, the flight crew reported that the trimmable horizontal stabilizer (THS) pitch trim wheel began a rapid uncommanded nose up/nose down movement while autopilot 2 was engaged. The first officer, who was the pilot flying, disconnected autopilot 2 and took manual control of the aircraft. The trim wheel continued the uncommanded movement with the autopilot disengaged; however, the crew stated the airplane was controllable during manual flight. No messages regarding the pitch trim anomaly were generated on the electronic centralized aircraft monitor (ECAM).
The captain declared an emergency and notified air traffic control that they would be returning to LAX and would need to jettison fuel. He then requested a non-revenue A330 captain seated in the cabin to assist in the cockpit. The captain stated he used this additional crew member, plus an A330 first officer that was jumpseating, to distribute workload in the cockpit: assisting the primary crew in troubleshooting the pitch trim, jettisoning fuel, and preparing for the airplane’s arrival back to LAX.
Before landing, the crew assessed the aircraft handling qualities in the landing configuration and remained vigilant to the continued movement of the manual trim wheel. The landing was uneventful, and the aircraft was taxied to a remote parking area where the passengers deplaned.
Aircraft Registration Data
Incident Facts
Date of incident
Sep 22, 2022
Classification
Incident
Airline
Hawaiian Airlines
Flight number
HA-3
Departure
Los Angeles, United States
Destination
Honolulu, United States
Aircraft Registration
N393HA
Aircraft Type
Airbus A330-200
ICAO Type Designator
A332
This article is published under license from Avherald.com. © of text by Avherald.com.
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