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

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.