ASN Wikibase Occurrence # 296902
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: | Thursday 25 July 2002 |
| Time: | 11:55 LT |
| Type: |  Bell 206L-3 |
| Owner/operator: | Private |
| Registration: | N3174Y |
| MSN: | 51038 |
| Year of manufacture: | 1982 |
| Total airframe hrs: | 11483 hours |
| Engine model: | Rolls-Royce 250C30P |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Eugene Is 192, -
 United States of America
|
| Phase: | Unknown |
| Nature: | Unknown |
| Departure airport: | Ship Shoal 149, GM |
| Eugene Isld 192, GM | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While in cruise flight over open ocean water, the pilot of the air taxi helicopter heard a "bang," and the helicopter yawed. The pilot was unable to control the yaw, so he initiated an autorotation. Prior to water entry, the skid mounted floats were successfully deployed. After touchdown on the water, the helicopter rolled over inverted, and the pilot and passenger exited the helicopter and were rescued by a recovery boat. Examination of the wreckage revealed a main rotor blade contact mark just aft of the exhaust stack on a downward angle of approximately 45 degrees. Cyclic, collective, and tail rotor control continuity was established throughout the flight control system. Removal. of the tail rotor drive shaft cowling revealed that the #6 drive shaft (s/n VNMK-47448) twisted apart into two sections, with respective adjacent disc pack couplings deformed. The #8 drive shaft (s/n VNMKH-48083) was found twisted, but not separated, no deformity was noted on the adjacent disc pack couplings. One tail rotor blade (s/n CS-9003) showed damage to its leading edge, and was fractured along the chord in perpendicular to the leading edge. A "bluish", plastic appearing material was found smeared onto the damaged leading edge. The opposite tail rotor blade displayed no visible damage, however, some of the "bluish" coloration was found on its blade tip weight rivets. The tail boom showed evidence of scrapping along its left side, corresponding to the tip path plane of the tail rotor disc. Additional "bluish" coloration was present in the area of the scrapes, and on the tail rotor gearbox output shaft. All damage found was within the rotational arc of the tail rotor disc, with the exception of the exception the main rotor blade and the twisted #6 section of the tail rotor drive shaft. The baggage compartment door and latches were inspected for integrity. The door interior was not deformed and did not show visible evidence of impact marks and the latches were in good condition with no looseness when the door was in the closed
Accident investigation:
 |
|
Sources:
NTSB FTW02LA217
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Oct-2022 12:06 | ASN Update Bot | 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