Incident at GREATER MONCTON ROMEO LEBLANC INTERNATIONAL AIRPORT

Summary

2001-08-09: The aircraft was en route to Sydney when, while on descent through 15,000, the crew heard a popping sound.Crew observed the cabin altitude increasing rapidly and the pressure differential decreasing. Just before the cabin altitude reached 10,000, the crew donned their 02 masks as precaution. The cabin altitude reached 13,000. The aircraft was in VMC. The crew contacted ATS and advised them they were experiencing a pressurization problem; the crew did not declare an emergency but requested diversion at 10,000 to Moncton. While at 10,000, the cabin altitude recovered with a differential of 1.8 PSI. The aircraft lost cabin pressurization again when the throttles were reduced from 85 to 70% NI for the descent into Moncton. The cabin altitude subsequently went up to 9,000 feet during the descent. The aircraft landed in Moncton with no further problem. It was determined that the squat switch (p/n 41 EN49-6) was stuck. The switch was unstuck and the aircraft returned to Ottawa at 10000 as per MEL. Maintenance replaced the squat switch and the aircraft was returned to service.
2001-08-08: TGO 856 enroute CTQB-CYQY , experienced pressurization problems and requested clearance direct Moncton . Landed Safely at 1622Z. TSB : Accessing .
2001-08-20: NULL
2001-08-13: Nil.

Details


CADORS Number 2001A0490
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2001-08-07 - 15:37
Day or Night? Day-time
Fatalities 0
Injuries
Aerodrome ID CYQM
Aerodrome Name GREATER MONCTON ROMEO LEBLANC INTERNATIONAL AIRPORT
Geographic Location New Brunswick, Canada, North America, Atlantic Region, Moncton Airport
TSB Occurrence Number A01A0094
TSB Class of Investigation Class 5
AOR Number 16951
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 FKEB | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner GOVERNMENT OF CANADA, DEPARTMENT OF TRANSPORT
Operator State
Make  Silhouette image of CESSNA
CESSNA
Model 550
Year Built 1991
Engine Type Turbo fan
Engine Make PRATT & WHITNEY
Engine Model JT15D-4
Gear Type Land
Private No
Amateur Built No
Flight Number TGO 856
Flight Rule
CARS Subpart
Phase of Flight Descent
Damage No Damage
Fatalities 0
Injuries 0
Events Decompression/pressurization,Diversion

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