ASN Wikibase Occurrence # 248252
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Date: | Wednesday 24 February 2021 |
Time: | 16:00 LT |
Type: | Cessna 182F Skylane |
Owner/operator: | Pilot |
Registration: | N3209U |
MSN: | 18254609 |
Year of manufacture: | 1963 |
Total airframe hrs: | 4634 hours |
Engine model: | Continental O-470-R |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Clayton County, Millville, IA -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Cassville, WI (C74) |
Destination airport: | Dubuque Municipal Airport, IA (DBQ/KDBQ) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot stated that, during climb from the departure airport, the engine made a loud growling noise, lost power, and began producing smoke. The pilot then performed a forced landing on a road, during which the airplane nosed over and impacted terrain.
Postaccident examination of the airplane revealed a hole in the crankcase and a failure of two cylinders consistent with oil starvation. The majority of oil residue was located below and aft of the oil breather tube, which was to alleviate normal crankcase pressures. The crankcase nose seal exhibited an oil leak that would have also allowed ram air pressure to pressurize the crankcase above normal pressures and force engine oil out through the oil breather tube resulting in oil starvation/exhaustion. Oil leakage from the crankcase breather tube would have been progressive and not instantaneous. The oil leakage from the crankcase nose seal and breather tube should have been identified by those performing maintenance and/or preflight inspections of the airplane after seeing decreased oil levels, oil residue external to the engine, and seepage from the crankcase nose seal.
Probable Cause: The inadequate maintenance/inspection of the airplane, which resulted in a total loss of engine power due to oil starvation.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CEN21LA138 |
Status: | Investigation completed |
Duration: | 1 year and 6 months |
Download report: | Final report |
|
Sources:
NTSB CEN21LA138
FAA register:
https://registry.faa.gov/aircraftinquiry/Search/NNumberResult Location
Revision history:
Date/time | Contributor | Updates |
26-Feb-2021 02:07 |
Geno |
Added |
26-Feb-2021 02:08 |
Geno |
Updated [Aircraft type] |
26-Sep-2022 19:03 |
ASN Update Bot |
Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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