ASN Wikibase Occurrence # 301806
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| Date: | Sunday 27 November 2022 |
| Time: | 13:30 LT |
| Type: |  RotorWay Exec 162F |
| Owner/operator: | Private |
| Registration: | N8006A |
| MSN: | 6708 |
| Total airframe hrs: | 763 hours |
| Engine model: | Rotorway A600T |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Space Coast Regional Airport (TIX/KTIX), Titusville, FL -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Titusville, FL |
| Titusville, FL | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight instructor, who was also the owner of the experimental amateur-built helicopter, said that shortly after takeoff, while about 150 ft above ground level, the helicopter's engine lost partial power with “severe backfiring.' He declared an emergency, turned back to the airport, and landed on a grassy area. Upon touchdown, the helicopter's front left skid dug into the grass and the helicopter rolled over. Postaccident examination of the engine revealed the No. 4 exhaust valve spring retainer was missing. The engine maintenance manual required inspection of the valve train system, including the spring retainer, every 25 hours. A review of the engine maintenance logbook revealed that the flight instructor/owner had performed the 25-hour inspection about 8.8 hours before the accident. The reason for the separation of the valve spring retainer was not determined.
Probable Cause: A failure of the No. 4 exhaust valve spring retainer, which resulted in a partial loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB ERA23LA073
FAA register: https://registry.faa.gov/aircraftinquiry/Search/NNumberResult?nNumberTxt=8006A
https://flightaware.com/live/flight/N8006A
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Feb-2024 12:52 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Accident report] |
| 01-Feb-2024 12:53 | harro | Updated [Operator, Other fatalities, Source, Narrative] |
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