ASN Wikibase Occurrence # 194992
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| Date: | Sunday 23 April 2017 |
| Time: | 11:25 |
| Type: |  Cessna 182G Skylane |
| Owner/operator: | Private |
| Registration: | N2056R |
| MSN: | 18255256 |
| Year of manufacture: | 1964 |
| Total airframe hrs: | 3902 hours |
| Engine model: | Continental O-470-R |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Mason County, Grant Township, MI -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Hessel, MI (5Y1) |
| Hastings, MI (9D9) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot was in cruise flight about 2,500 ft mean sea level during a cross-country flight when he noted an engine vibration and loss of power, which he could not remediate. The pilot performed a forced landing to a field, during which the airplane nosed over. Postaccident examination of the engine revealed no mechanical anomalies that would have precluded normal operation. One of the two propeller blades was rotated about 90° and was beyond its high pitch limit. The high pitch angle of the blade would have resulted in high drag and/or loss of propulsive thrust.
Disassembly and metallurgical examination of the hub of the rotated propeller revealed that its blade actuating pin had fractured in high-cycle fatigue. According to a manufacturer's service bulletin, the propeller should be overhauled at 1,500 hours or 60 calendar months, whichever occurs first. Propeller logbooks showed that the accident propeller was last overhauled nearly 24 years and over 1,592 hours before the accident. It is likely that compliance with the manufacturer’s recommended overhaul schedule would have resulted in the fatigued pin being replaced.
Probable Cause: The failure of the airplane owner and maintenance personnel to follow the propeller manufacturer's recommend overhaul schedule, which resulted in a fatigue fracture of the propeller blade actuating pin and a loss of thrust in flight.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=2056R
History of this aircraft
Other occurrences involving this aircraft
| 29 February 1964 | N2056R | Non commercial | 0 | Shepp Ranch, Idaho | |
sub |
Location
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Apr-2017 22:07 | Geno | Added |
| 24-Apr-2017 04:49 | Iceman 29 | Updated [Time, Source, Embed code] |
| 24-Apr-2017 04:55 | Iceman 29 | Updated [Embed code, Narrative] |
| 24-Apr-2017 10:52 | Iceman 29 | Updated [Embed code] |
| 11-Nov-2018 08:31 | ASN Update Bot | Updated [Time, Operator, Departure airport, Destination airport, Source, Embed code, Narrative, Accident report, ] |
| 11-Nov-2018 08:45 | harro | Updated [Source, Embed code, Narrative] |
Corrections or additions? ... Edit this accident description
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