ASN Wikibase Occurrence # 176232
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| Date: | Tuesday 19 May 2015 |
| Time: | 16:50 |
| Type: |  Piper PA-28-181 Archer III |
| Owner/operator: | Private |
| Registration: | N597JG |
| MSN: | 2843087 |
| Year of manufacture: | 1997 |
| Total airframe hrs: | 3519 hours |
| Engine model: | Lycoming O-360-A4M |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | NE of Knoxville Downtown Island Airport (KDKX), Knoxville, TN -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Knoxville, TN (DKX) |
| Knoxville, TN (DKX) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a training flight, the student and flight instructor heard a "loud bang" from the engine area, accompanied by engine roughness and reduced power. The flight instructor performed a forced landing to a field, resulting in substantial damage to the engine firewall. An examination of the engine revealed the No. 4 cylinder head was fractured outboard of the barrel thread. Further examination revealed that the cylinder fractured due to fatigue that initiated at the interior of the head near the intake valve. The serial number for the cylinder was outside the range of those affected by an airworthiness directive requiring inspection and/or replacement of certain cylinders.
Probable Cause: The failure of the No. 4 engine cylinder due to fatigue, resulting in a catastrophic failure of the engine.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=597JG
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-May-2015 04:43 | Geno | Added |
| 20-May-2015 04:52 | Geno | Updated [Registration, Cn, Operator, Source] |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 19-Aug-2017 13:53 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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