Incident at ST. JOHN'S INTL NL (CYYT)

Summary

2010-08-03: UPDATE Maintenance & Manufacturing: Upon reviewing the incident and after listening to the various crew reports, and prior to resuming commercial operations, the number 2 engine was replaced as a precautionary measure. The helicopter was again flown under a test flight and the reported problem could not be duplicated. The helicopter was then returned to service and has since flown several missions without incident.
2010-07-16: CHI61, Sikorsky S61N, declared an emergency due to a "torque split" while training in the Paddy's Pond (CCQ5) area. The aircraft returned to land safely at St. John?s (CYYT) at 12:48Z. There was no impact on airport operations. Aircraft Rescue and Fire Fighting (ARFF) was on standby in the fire hall.
2010-07-30: UPDATE Update TSB: A10A0079: CHI-61 a Cougar-S-61N Helicopter (Registration C-GYCH) was preparing for hoisting training when there was a number two engine power loss in a 40 foot hover over Paddy's Pond. The General Electric CT7-8A engine power decreased right to flight idle. An emergency was declared and the aircraft returned to St John's landing safely at 1018 NDT. Ground runs, a hover check and a test flight were conducted at CYYT, but the condition could not be duplicated. The aircraft was returned to service.

Details


CADORS Number 2010A0674
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2010-07-16 - 12:40
Day or Night? Day-time
Fatalities 0
Injuries 0
Aerodrome ID CYYT
Aerodrome Name ST. JOHN'S INTL NL (CYYT)
Geographic Location Newfoundland and Labrador, Canada, North America, Atlantic Region, St. John`s Intl (CYYT)
TSB Occurrence Number A10A0079
TSB Class of Investigation Class 5
AOR Number 121646-V1
Reported By NAV CANADA
Categories System/component failure or malfunction [powerplant],Other
Events



Aircraft Details (1 aircraft)

Type Helicopter
 Silhouette image of Helicopter
Canadian Registration GYCH | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner COUGAR HELICOPTERS INC.
Operator COUGAR HELICOPTERS INC. (4791) Commercial
Make  Silhouette image of SIKORSKY
SIKORSKY
Model S61N
Year Built 1977
Engine Type Turbo shaft
Engine Make GENERAL ELECTRIC
Engine Model CT58-140-2
Gear Type Land
Private No
Amateur Built No
Flight Number CHI61
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage No Damage
Fatalities 0
Injuries 0
Events Engine - malfunction,Declared emergency/priority

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