Incident at 25 Miles NW Regina, SK


1999-08-19: The aircraft had departed Prince Albert enroute Regina. On descent the gear unsafe light illuminated. The pilot conducted a low pass down Runway 31 with the gear retracted to see if there was anything hanging down. All indications were that everything was normal. The pilot selected geardown and the gear unsafe light extinguished and the pilot had a three green indication. The aircraft was landed without further incident. Company Maintenance indicated that this problem had occurred once before and efforts to diagnose the problem failed because of its intermnttance. The aircraft is currently on jacks in the hanger for further troubleshooting. OPI - System Safety UPDATE TSB reported that Saskatchewan Govt. Maintenance Department advised that the gear unsafe indication was a result of a rigging problem. Under normal flight conditions the gear indication was normal, however an increase in airspeed induced enough RAM air/pressure differential inside the gearwell that the gear door was forced down just enough to activate the gear unsafe switch.


CADORS Number 1999C0689
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-08-16 - 18:20
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Saskatchewan, Canada, North America, Prairie and Northern Region, 25 Miles NW Regina, SK
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 GJPT | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator State
Make  Silhouette image of PIPER
Model PA31T
Year Built 1975
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 Descent
Damage Unknown
Fatalities 0
Injuries 0
Events Landing gear

Leave a Comment