ASN Wikibase Occurrence # 133826
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: | Saturday 1 June 1996 |
| Time: | 21:00 LT |
| Type: |  Brantly B-2B |
| Owner/operator: | Rick Dobbelaere |
| Registration: | N2261U |
| MSN: | 423 |
| Total airframe hrs: | 640 hours |
| Engine model: | Lycoming VIO-360-A1A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Oakwood, OH -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that while he maneuvered during the approach to land, the helicopter experienced a total loss of engine power. When the power loss occurred, he '...nosed down and put the collective down...' to enter autorotation. He '...picked a spot [for landing] ... looked at the rotor RPM (RRPM), it was 320... [and] at 60 to 80 feet I pulled collective...' to begin deceleration. The helicopter struck the ground with a forward speed of 30 MPH with the tail skid striking the ground prior to the main gear. According to the pilot, the normal operating range for RRPM is 400-472 and that 400 RRPM was minimum for autorotation. The pilot did not possess a helicopter rating, but had received 5 to 6 hours of instruction in helicopters. He reported that he had flown 28 hours within the preceding six months, including 3 hours in the accident aircraft. Postaccident examination revealed that the fuel tank vent tube assembly was clogged with '...insect and nest remains... .' The most recent documented 100-hour maintenance inspection of the helicopter occurred on 5/18/70.
Probable Cause: a loss of engine power due to inadequate maintenance and inspection by the owner/operator which failed to detect the clogged fuel vent line, and the pilot's improper autorotation. A related factor was the pilot's inadequate training/familiarization with helicopter emergency procedures.
Accident investigation:
 |
|
Sources:
NTSB IAD96LA088
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 06:39 | ASN Update Bot | Updated [Time, Other fatalities, Phase, Source, Narrative, Category, Accident report] |
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