Incident at Gander Oceanic Airspace

Summary

1996-07-19: The pilot reported pressurization problems and requested descent to FL180. Due to traffic ATC was unable to comply so the pilot descended according to contingency procedures and was cleared to Gander at FL180. Maintenance determined that a boot that joins two ducts in the left pressurization pack was torn and a boot in the right pressurization pack system had detached from the clamp that holds them to the duct. The right boot was reinstalled and the left boot will be replaced. TSB case closed.

Details


CADORS Number 1996A0738
Occurrence Type Incident
Reported By
Occurred At 1996-07-19 - 02:58
Day or Night?
Fatalities 0
Injuries
Aerodrome ID
Aerodrome Name
Geographic Location Gander Oceanic, Atlantic Region, Gander Oceanic Airspace
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By
Categories System/component failure or malfunction [non-powerplant]
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration
Foreign Registration
Country of Registration
Occurrence Type Incident
Owner
Operator UNITED AIR LINES, INC. (422)
Make  Silhouette image of BOEING
BOEING
Model 777
Year Built
Engine Type
Engine Make
Engine Model
Gear Type
Private No
Amateur Built No
Flight Number N777UA
Flight Rule
CARS Subpart
Phase of Flight Unknown
Damage Unknown
Fatalities 0
Injuries 0
Events Decompression/pressurization

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