ASN Wikibase Occurrence # 264248
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Monday 7 June 2021 |
| Time: | 23:24 UTC |
| Type: |  Bell 214ST |
| Owner/operator: | Helicopter Transport Services |
| Registration: | C-GDYZ |
| MSN: | 28109 |
| Year of manufacture: | 1982 |
| Engine model: | General Electric CT7-2A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | 14 nm NE of Nipigon, ON -
 Canada
|
| Phase: | En route |
| Nature: | Fire fighting |
| Departure airport: | Nipigon, ON |
| Nipigon, ON | |
| Investigating agency: | TSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A Bell 214ST helicopter operated by Helicopter Transport Services, was returning from fire suppression operations to Nipigon, ON while carrying a Bambi bucket on a 150 foot long-line. While cruising at 3000 feet above sea level, at approximately 70 knots, the pilot noticed a vibration in the tail rotor pedals accompanied by a grinding noise. The low oil-pressure warning lights of the two tail-rotor gearboxes illuminated followed immediately by a loss of yaw control. The pilot released the long-line, declared a MAYDAY on the 126.7 Mhz enroute frequency, and conducted a forced landing. The helicopter landed heavily and came to rest on its left side. The pilot, who was wearing a helmet and lap belt, sustained serious injuries. The pilot shut down the engines and was able to exit the aircraft. Another helicopter responded to the MAYDAY call and was able to land within a few hundred yards of the crash site. The injured pilot was transported to the Thunder Bay hospital. The ELT activated and there was no fire. The helicopter was substantially damaged.
The TSB investigation showed that the three coupling assemblies of the helicopter's tail rotor drivetrain were removed, disassembled, cleaned, inspected, lubricated, and reinstalled on 27 and 28 April 2021.
It was determined that an incompletely seated retainer ring in one of the coupling assemblies likely led to a failure of the tail rotor drivetrain and consequent loss of tail rotor thrust.
Accident investigation:
 |
|
Sources:
TSB A21C0052
History of this aircraft
Other occurrences involving this aircraft
| 14 August 1985 | G-BKFN | British Caledonian Helicopters | 0 | Near Balmedie, Aberdeenshire |  |
min |
| 15 May 1986 | G-BKFN | British Caledonian Helicopters | 0 | North Sea, 14 mi NE of Fraserburgh | |
sub |
| Ditching | ||||||
| 24 December 1990 | G-BKFN | Bristow Helicopters | 0 | near Cormorant A platform, North Sea | |
sub |
Images:
Photo: TSB Canada
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Jun-2021 07:33 | harro | Added |
| 20-Jun-2021 07:39 | harro | Updated |
| 23-Jun-2021 12:53 | Aerossurance | Updated [Embed code] |
| 23-Jun-2021 13:51 | Aerossurance | Updated [Embed code] |
| 23-Jun-2021 13:53 | harro | Updated [Photo] |
| 08-Feb-2022 18:42 | harro | Updated [Embed code] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation