ASN Wikibase Occurrence # 43295
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: | Tuesday 5 February 1985 |
| Time: | 15:50 |
| Type: |  Hughes 369D |
| Owner/operator: | Kenai Helicopters |
| Registration: | N369LA |
| MSN: | 126-0036D |
| Total airframe hrs: | 2165 hours |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Hilo, Hawaii, HI -
 United States of America
|
| Phase: | Landing |
| Nature: | Ferry/positioning |
| Departure airport: | Kahului, HI (OGG) |
| Volcano Natl Pk, HI | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A SEARCH WAS INITIATED WHEN THE HELICOPTER DID NOT ARRIVE. IT WAS FND 2 DAYS LATER WHERE IT CRASHED DRG AN AUTOROTATION IN A RAIN FOREST. DRG THE FLARE/TOUCHDOWN, VEGETATION HAD CAUGHT ON A TUNDRA PAD ON THE L SKID & THE ACFT ROLLED OVER. AN EXAM REVEALED THE LWR BENDIX COUPLING ON THE ENG-TO-TRANSMISSION DRIVE SHAFT, PN 369A4410, & THE UPPER R ENG MOUNT, PN 369H8017, HAD FAILED. UNAPPROVED MOD/REPAIRS HAD BEEN MADE TO BOTH THE DRIVE SHAFT & OVERLYING COVER PANEL. A STEEL REINFORCING ROD HAD BEEN INSTALLED INSIDE THE COVER PANEL. DUE TO PRESSURE OF CARGO (LARGE WTR BUCKET), THE STEEL ROD HAD BEEN FORCED ONTO THE DRIVE SHAFT. THERE WAS EVIDENCE OF ANGULAR MISALIGNMENT & LATER FAILURE OF THE DRIVE SHAFT. A METALLURGICAL EXAM OF THE ENG MOUNT REVEALED LOW CYCLIC FATIGUE IN THE THREADED ROD AREA OF THE ADJUSTING SCREW. THE FRACTURE AREA OF THE DRIVE SHAFT WAS TOO BADLY DAMAGED TO DETERMINE THE MODE OF FAILURE. ACFT PREV OPERD IN CANADA, REG C-GVTJ. ANNUAL INSPN & U.S. AIRWORTHINESS CERTIFICATE ISSUED DESPITE UNAPPROVED MOD. DATE OF MOD UNKNOWN. CAUSE:
Sources:
NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X35715
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Jun-2023 14:31 | Ron Averes | Updated [[Time, Damage, Category, Investigating agency]] |
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