Incident at Grace Lake, MB


1999-02-02: C-GEBA, a Piper Cheyene, departed Grace Lake on a medevac flight to Pukatawagan with three people on board, and when the crew selected gear up after takeoff, the gear would not fully retract and the "in transit" light remained illuminated. They then selected gear down and the gear would not extend fully. They elected to return to Grace Lake, where they flew a holding pattern to use up fuel. The emergency system was used to extend the gear, but the pump handle broke. The crew of an RCMP Twin Otter confirmed that the nose gear was not completely extended. After consultation with another operator, the crew pushed the landing gear selector past the down detent, and the system energized to the extent that all three gear moved to the down and locked position. The a/c landed without further incident. The operator suspects that there was an internal fault related to the sequencing valve in the hydraulic power pack. The crew reported that the landing gear moved down and hung up against the gear doors. OPI - System Safety UPDATE Maintenance and Manufacturing reported that the hydraulic powerpak had a faulty gear solenoid switch and dirt and water was found in the hydraulic system itself. A new powerpak was installed along with a new hand pump assembly. The system was flushed and several gear cycles carried out with no further problems. The a/c was returned to service and the investigation into the source of the contamination is ongoing.


CADORS Number 1999C0020
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-01-08 - 16:28
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Manitoba, Canada, North America, Prairie and Northern Region, Grace Lake, MB
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories System/component failure or malfunction [non-powerplant]

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration GEBA | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator Commercial
Make  Silhouette image of PIPER
Model PA31T
Year Built 1976
Engine Type Turbo prop
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number
Flight Rule
CARS Subpart
Phase of Flight Climb
Damage Unknown
Fatalities 0
Injuries 0
Events Landing gear,Hydraulic problem

Leave a Comment