Incident at Saskatoon, SK

Summary

1999-04-28: The pilot of CF-AGO, a Douglas A-26C, was operating out of Prince Albert and Prince Albert FSS advised Saskatoon (YXE) Tower that the pilot had reported gear problems and had decided to divert to YXE. The pilot contacted YXE Tower and reported that he had lowered the gear manually. CFR was requested to be on standby as the pilot landed safely on Runway 15. During the rollout, the pilot advised that the brakes were also unserviceable and the a/c rolled to a stop on the runway. The runway was closed from 0150Z to 0316Z. Other a/c were diverted to Runway 09. OPI - Maintenance and Manufacturing UPDATE TSB reported that when the pilot was on approach to Prince Albert, he selected gear down and received an unsafe indication and a low system pressure reading. He diverted to Saskatoon where he lowered the gear with the emergency system and landed safely. After landing, the pilot used the emergency pneumatic (compressed nitrogen) system for braking. The a/c was shut down on the runway and towed to the ramp. Maintenance discovered that an o-ring had failed in the gear selector, allowing hydraulic fluid to port from the system back to the reservoir. The selector was repaired at Saskatoon. UPDATE Maintenance and Manufacturing reported that the company will submit an SDR on the o-ring failure. When the o-ring failed, hydraulic fluid circulated through it and the pilot's pressure guage showed no pressure. Also, when the pilot selected the emergency gear system, it disabled the hydraulic system automatically. M & M reported that the pilot did not use the emergency air bottle brakes as they are good for only about three applications.

Details


CADORS Number 1999C0301
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-04-25 - 01:32
Day or Night?
Fatalities 0
Injuries
Aerodrome ID
Aerodrome Name
Geographic Location Saskatchewan, Canada, North America, Prairie and Northern Region, Saskatoon, SK
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories System/component failure or malfunction [non-powerplant],Other
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration FAGO | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner AIR SPRAY 1967 LTD
Operator Commercial
Make  Silhouette image of DOUGLAS
DOUGLAS
Model A26C
Year Built 1944
Engine Type Reciprocating
Engine Make
Engine Model
Gear Type
Private No
Amateur Built No
Flight Number
Flight Rule
CARS Subpart
Phase of Flight Approach
Damage Unknown
Fatalities 0
Injuries 0
Events Landing gear,Brakes

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