ASN Wikibase Occurrence # 168307
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 7 August 2014 |
| Time: | 09:46 |
| Type: |  Enstrom F28 |
| Owner/operator: | Paul Peterson Aviation LLC |
| Registration: | N213BL |
| MSN: | 803 |
| Year of manufacture: | 1995 |
| Total airframe hrs: | 2385 hours |
| Engine model: | Lycoming HIO-360-F1AD |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Tomah, Monroe County, Wisconsin -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Tomah, WI (PVT) |
| Tomah, WI (PVT) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot felt a vibration in the cyclic control and he stated that the engine was running irregularly as he neared the intended application field on the agricultural application flight. He immediately elected to execute a precautionary landing to a cornfield; the corn crop was about 10 feet tall at the time. During the landing, the landing skids collapsed, and the tailboom was severed by a main rotor blade. A postaccident examination of the engine revealed that the No. 4 cylinder did not exhibit compression during crankshaft rotation. Further examination of the No. 4 cylinder revealed that the intake valve did not seat properly; a gap of about 0.015 inch existed when the valve should have been fully seated. Linear scoring was observed on the valve stem, and debris consistent with valve guide material was also recovered upon removal of the valve. No other anomalies with respect to the engine were observed. The engine had accumulated about 831 hours since overhaul. The helicopter maintenance records did not contain a record of any unresolved maintenance issues.
Probable Cause: A loss of engine power due to the malfunction of the No. 4 cylinder intake valve.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=213BL
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Aug-2014 20:27 | av8r | Added |
| 10-Aug-2014 12:51 | Chieftain | Updated [Source] |
| 28-Aug-2014 05:58 | Aerossurance | Updated [Time, Cn, Location, Source, Narrative] |
| 19-Dec-2016 19:56 | Dr. John Smith | Updated [Time, Operator, Other fatalities, Location, Phase, Departure airport, Destination airport, Source, Embed code, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 30-Nov-2017 19:01 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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