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ASN Wikibase Occurrence # 228773
Last updated: 11 April 2020
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Date:24-JUL-2019
Time:13:30
Type:Silhouette image of generic S92 model; specific model in this crash may look slightly different
Sikorsky S-92A
Owner/operator:Canadian Helicopters Offshore - CHO
Registration: C-GICB
C/n / msn: 920121
Fatalities:Fatalities: 0 / Occupants: 13
Other fatalities:0
Aircraft damage: None
Category:Incident
Location:Off the coast of Sable Island, Nova Scotia -   Canada
Phase: Approach
Nature:Domestic Non Scheduled Passenger
Departure airport:Halifax-Stanfield International Airport, NS (YHZ/CYHZ)
Destination airport:Thebaud gas field platform
Investigating agency: TSB Canada
Narrative:
A Sikorsky S-92A helicopter operated by Canadian Helicopters Offshore (CHO), was conducting flight CDN131 from Stanfield/Halifax Intl Airport (CYHZ), NS to the Thebaud gas field platform (Thebaud) during daylight hours on an instrument flight rules flight. Onboard were 2 pilots and 11 passengers. Due to low clouds and visibility, 2 instrument approaches were attempted at Thebaud. During the missed approach following the second instrument approach, the flight crew became visual with the platform. The flight crew decided to discontinue the missed approach and to conduct a visual approach and landing to the platform, which was now visible above a layer of fog. Shortly after commencing the final descent, the crew lost contact with the platform in the fog. The helicopter airspeed then decreased and a high rate of descent developed. The helicopter began to rotate about the vertical axis. The crew carried out a missed approach. Both engines experienced an over torque condition, a low main rotor speed condition, and the generators came offline. The crew regained control of aircraft at low altitude in low visibility conditions. The crew elected to divert to CYHZ where a landing was conducted without further incident. There were no injuries; however, the aircraft suffered significant damage due to the extent of the over-torque condition. The emergency locator transmitter did not activate.

Sources:

http://www.bst-tsb.gc.ca/eng/enquetes-investigations/aviation/2019/A19A0055/A19A0055.html
TSB


Revision history:

Date/timeContributorUpdates
06-Sep-2019 17:50 Talon514 Added
06-Sep-2019 17:51 harro Updated [Aircraft type, Operator]
02-Jan-2020 18:50 harro Updated [Time, Aircraft type, Registration, Cn, Other fatalities, Nature, Destination airport, Source, Narrative]
21-Jan-2020 16:45 harro Updated [Source]

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