ASN Wikibase Occurrence # 188135
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| Date: | Tuesday 14 June 2016 |
| Time: | 09:45 |
| Type: |  Lark Commander 180 |
| Owner/operator: | Private |
| Registration: | N3718X |
| MSN: | 5022 |
| Year of manufacture: | 1968 |
| Total airframe hrs: | 2374 hours |
| Engine model: | Lycoming O-360-A2F |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Calhoun County NE of Olivia, TX -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Port Lavaca, TX (PKV) |
| Port Lavaca, TX (PKV) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot had departed on a local flight. He reported that, about 15 minutes after takeoff and when the airplane was about 1,100 ft above ground level, he felt a vibration and heard a “bang.” The engine subsequently began to lose power. The oil pressure dropped to zero, the pilot heard another “bang,” and the propeller stopped turning. The pilot executed a forced landing to a pasture, which resulted in substantial damage to the airplane when the nose landing gear collapsed in soft ground.
An engine examination revealed that the No. 4 connecting rod had separated from the crankshaft. However, all fracture surfaces sustained secondary mechanical damage, which precluded further examination. The last engine overhaul was accomplished about 25 years before the accident. The engine manufacturer recommended engine overhauls every 12 years; however, the operator was not required to comply with that recommendation because the airplane was operated under Part 91. Given the available information, the reason for the connecting rod failure could not be determined.
Probable Cause: Loss of engine power due to failure of a connecting rod.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=3718X
History of this aircraft
Other occurrences involving this aircraft
| 12 December 1993 | N3718X | Private | 0 | El Paso, TX | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Jun-2016 21:42 | Geno | Added |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Aug-2020 07:23 | ASN Update Bot | Updated [Time, Nature, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
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