ASN Wikibase Occurrence # 219372
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: | Wednesday 21 December 1988 |
| Time: | 10:30 |
| Type: |  Hiller UH-12E |
| Owner/operator: | |
| Registration: | VH-PYH |
| MSN: | |
| Fatalities: | Fatalities: 0 / Occupants: |
| Aircraft damage: | Substantial |
| Location: | Killarney, QLD -
 Australia
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Killarney, QLD |
| Killarney, QLD | |
| Investigating agency: | BASI |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was operating the aircraft from the top of a gently sloping ridge in light and variable wind conditions. He lifted the aircraft into a hover one metre above ground level and began to accelerate forward. At about translational lift speed, the helicopter lost height and the tail rotor struck the ground. The pilot was able to land the aircraft straight ahead. Damage was sustained to the tail rotor drive, gearbox, and blades. The pilot had started work at 0445 hours on the day of the accident. He had flown 4.5 hours and had sprayed five chemical loads prior to the accident. This was the first concentrated period of flying he had undertaken in more than three weeks. Also, it was his first early morning start in that time. Both these aspects could have led to the pilot suffering a degree of transient fatigue. This might have been sufficient to cause a slight degradation in his performance sufficient for him not to compensate fully for the nose-up pitch as the helicopter passed through translational lift. This accident was not the subject of an on-site investigation.
Accident investigation:
 |
|
Sources:
https://www.atsb.gov.au/publications/investigation_reports/1988/aair/aair198803509/
https://www.atsb.gov.au/media/28500/aair198803509.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Dec-2018 11:48 | Pineapple | Added |
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