Incident at ROCKY MOUNTAIN HOUSE AB (CYRM)
2003-04-25: UPDATE TSB reported that the Westjet Boeing 737-200, C-FIWJ, operating as WJA 18 departed Edmonton International (CYEG) for Vancouver (CYVR), and after flaps were retracted, the leading edge flap transit light flickered. During the climb through 10,000 feet, the light came on steady with a corresponding leading edge device annunciator light indicating extension. The trailing edge flaps indication was 0 degrees and no roll was encountered. When completion of the leading edge devices non-normal checklist did not resolve the discrepancy, an emergency was declared and the aircraft landed at CYEG without further incident. AFF had responded and followed the aircraft to the gate. Maintenance determined that the number 1 flap leading edge down lock proximity sensor had failed, and gave a false indication.
2003-04-28: UPDATE Maintenance and Manufacturing also reported that the #1 L.E. Krueger Flap proximity switch was determined to be at fault for the indication problem. The item was MEL'd and the aircraft departed Edmonton. The proximity switch was adjusted in Calgary the same day and the aircraft returned to service with no further problems reported.
2003-04-23: WJA 18, a B737-200, departed Edmonton at 2148Z and at 2200Z, the crew advised of a flap problem and requested to return to YEG. CFR was called to standby as WJA 18 landed without incident at 2228Z. TSB will be contacting the company.
|Occurred At||- 22:00|
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Aircraft Details (1 aircraft)
|Canadian Registration||| Flightaware (Registration) | Flightaware (Tracking) | AvHerald|
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