Incident at Calgary, AB


1997-12-11: Prior to it's regular scheduled flight to Regina with 85 passengers and 5 crew, the crew of WJA 34 noticed that the hydraulic fluid was low, and requested that maintenance fill the system to normal level. This was done, but following departure, as the a/c was near Empress, the crew saw that the hydraulic system was again indicating below normal levels. Because the weather was better at Calgary and a longer runway was available, the crew elected to return, and they requested priority handling. A successful landing was accomplished at Calgary at 2144Z, with ERS on standby at the request of Tower. Following landing, maintenance could not immediately determine where the fluid was leaking from because there was no visible evidence. More details to follow. OPI - System Safety UPDATE Maintenance reported that the leak was in the "A" system at the elevator PCU, and fluid was leaking out of a vent hold in the side of the casting. Normal hydraulic level is 4.5 gallons and the gauge was reading 1.6 gallons when the crew elected to return to Calgary.


CADORS Number 1997C0832
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1997-12-05 - 21:41
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Calgary, AB
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories System/component failure or malfunction [non-powerplant],Other

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration GWJU | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator Commercial
Make  Silhouette image of BOEING
Model 737 2H4
Year Built 1975
Engine Type Turbo fan
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number WJA 34
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage Unknown
Fatalities 0
Injuries 0
Events Hydraulic problem,Declared emergency/priority

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