Incident at CALGARY INTL AB (CYYC)
2005-02-28: MPE 445, a B737-200, was inbound to Calgary from Edmonton when the crew advised they had shut down one engine due to an unspecified problem and were requesting priority to land. The aircraft was cleared straight in for Runway 16, delaying 2 other aircraft for a few minutes each. The aircraft landed safely at 0238Z and taxied to the ramp without further incident. Emergency equipment was requested by the crew and was present as the flight landed. TSB will contact the company.
2005-03-01: UPDATE TSB reported that the Canadian North Boeing 737-200, registered as C-GOPW, was inbound to Calgary, AB when the #1 engine (Pratt & Whitney JT8D-17) indicated low oil quantity and oil pressure. The engine was shut down and priority handling was given by Calgary ATC. The flight was cleared straight in for Runway 16, landed safely and taxied to the ramp without further incident. Emergency crews were requested by ATC and were waiting for the arrival. There were no injuries. Maintenance is looking into the problem.
2005-03-11: UPDATE Maintenance and Manufacturing reported that the flight crew reported inbound to YYC that the #1 engine oil pressure was below the red and the indication was reading zero. The engine was shut down and the aircraft landed in YYC without incident. Maintenance found upon investigation that the #1 engine oil filter cap assembly was dislodged due to the failure of the lower studs of the gear box housing Helicoils. Air Canada Engineering issued a production Permit B737-72-18790 to re-install the Helicoil with a repeat inspection of 50 hours. A review of the aircraft's history revealed that two days prior the this occurrence, there was a report of an oil leak from the #1 engine, which was not evident during engine run and was released as ground checked serviceable. In researching this in the Boeing and Pratt & Whitney data available, this appears not to be an uncommon problem. As it appears that over-tightening of the oil filter cap nuts may contribute to this problem, a reminder has been issued to the line engineers that the torque on these fasteners in 25-30 inch pounds as stated in Air Canada work card 1193.
|Occurred At||- 02:30|
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Aircraft Details (1 aircraft)
|Canadian Registration||| Flightaware (Registration) | Flightaware (Tracking) | AvHerald|
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