Incident at WINNIPEG / JAMES ARMSTRONG RICHARDSON INTL MB (CYWG)

Summary

2001-06-18: At approximately 1700Z, WJA 133, a B737 with 107 people on board, was on approach at Thunder Bay (YQT) after a flight from Winnipeg (YWG) when the crew received a faulty gear indication and discontinued the approach. The crew conducted a fly-by and the gear appeared normal, but the Captain elected to return to YWG rather than land at YQT. At approximately 1800Z, the crew declared an emergency. AFF responded as WJA 133 landed safely on Runway 18 at 1835Z. The crew stopped on the runway until company maintenance inserted pins in the gear. Two other flights experienced minor delays as a result. TSB will be contacting the company.
2001-06-22: Initial information from T.S.B. Initial Notification (#A01C0117): The Boeing 737-2H4 (C-FKWJ) operated by Westjet Airlines as flight WJA133, was on approach to Thunder Bay Airport (CYQT). When the landing gear was selected down, the nose gear indicated unsafe. The crew did a fly past by the tower, and were advised the gear appeared normal. The crew elected to divert to Winnipeg. En-route to Winnipeg they declared an emergency. The aircraft landed without further incident on runway 18 at Winnipeg, and stopped on the runway for company maintenance to insert safety pins in the nose landing gear. Maintenance found the downlock sensor on the nose landing gear was unserviceable. The aircraft was ferried from Winnipeg to Calgary where the downlock sensor was replaced, and the aircraft was returned to service.
2001-06-19: UPDATE Maintenance and Manufacturing reported that the company ferried the aircraft to Calgary with the gear pinned in the down position. Maintenance determined that the nose gear downlock sensor had failed. The sensor was subsequently replaced and gear operation and indication checked and tested serviceable. The flight crew had experienced some difficulty determining the status of the gear through the downlock viewer window. The nose gear downlock indicator lines were repainted and the nosegear viewer window cleaned. The company has stated that they will be carrying out a fleet campaign to re-paint and standardize the downlock indicator marks and to ensure all the viewers are regularly cleaned. An SDR has been sent to Transport Canada.

Details


CADORS Number 2001C0640
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2001-06-17 - 17:00
Day or Night? Day-time
Fatalities 0
Injuries
Aerodrome ID CYWG
Aerodrome Name WINNIPEG / JAMES ARMSTRONG RICHARDSON INTL MB (CYWG)
Geographic Location Manitoba, Canada, North America, Prairie and Northern Region, WINNIPEG / JAMES ARMSTRONG RICHARDSON INTL MB (CYWG)
TSB Occurrence Number A01C0117
TSB Class of Investigation Class 5
AOR Number 15814
Reported By NAV CANADA
Categories Undershoot/overshoot,System/component failure or malfunction [non-powerplant],Other
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration FKWJ | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner WESTJET
Operator WESTJET AIRLINES LTD. (8893) Commercial
Make  Silhouette image of BOEING
BOEING
Model 737 2H4
Year Built 1979
Engine Type Turbo fan
Engine Make PRATT & WHITNEY
Engine Model JT8D-9A
Gear Type Land
Private No
Amateur Built No
Flight Number WJA 133
Flight Rule
CARS Subpart
Phase of Flight Approach
Damage No Damage
Fatalities 0
Injuries 0
Events Landing gear,Declared emergency/priority,Overshoot/missed approach,Diversion

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