ASN Wikibase Occurrence # 310606
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| Date: | Thursday 10 November 2016 |
| Time: | 12:15 |
| Type: |  Sikorsky S-92A |
| Owner/operator: | |
| Registration: | VH-ZUQ |
| MSN: | |
| Fatalities: | Fatalities: 0 / Occupants: |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Broome Airport, WA (BME/YBRM) -
 Australia
|
| Phase: | Standing |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Broome Airport, WA (BME/YBRM) |
| Lombadina (YLBD) | |
| Investigating agency: | ATSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
On 10 November 2016, a Sikorsky S-92A helicopter, registered VH-ZUQ, was scheduled to depart from Broome Airport, WA. During the start procedure, the flight crew reported feeling abnormal vibrations in the airframe. A member of the ground crew then showed the pilots an anti-flap stop that had broken off the main rotor head. Further inspection revealed that two anti-flap stops had been sheared off the main rotor head during start-up. The anti-flap stop failure was a result of the collective not being lowered at the appropriate point during the start procedure. Several factors were found to have contributed: · A series of events resulted in the flight crew having more tasks to complete than originally planned, and less time in which to complete them. This resulted in time pressure on the crew. · The PM's unfamiliarity with the unique starting procedures in the S-92A compared with other helicopters contributed to the collective not being lowered in time. · The operator's standard operating procedures did not require any call outs for the lowering of the collective, which probably contributed to the collective not being lowered in time.
Sources:
ATSB AO-2016-152
Revision history:
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