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NTSB Report
October 19, 2010 · Cessna 182L · N808HC
Mancelona, MI
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
October 19, 2010
Injury Outcomes
No injuries (2 uninjured)
Location
Mancelona, MI
Aircraft
Cessna 182L
Tail Number
N808HC
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN11CA038
The pilot reported that during cruise flight the airplane suddenly started shaking violently. He reduced the engine power and noticed the vibration diminished. The pilot selected a field and attempted an off-airport landing, during which the airplane nosed over. The airplane sustained substantial damage to the wings and vertical tail. A postaccident examination of the airplane's engine revealed that the No. 5 piston was fragmented. The engine had last been overhauled 17 years prior to the accident, and had accumulated 740 hours since the overhaul.
NTSB Probable Cause
Aircraft-Aircraft power plant-Engine (reciprocating)-Recip eng cyl section-Failure - C
Full Narrative
The pilot reported that during cruise flight the airplane suddenly started shaking violently. He reduced power and the shaking was not as bad. The pilot selected a field and attempted an off-airport landing. During the landing, the "nose wheel dug in" and the airplane nosed over. The airplane sustained damage to the propeller, nose landing gear, wings, and vertical tail. Examination of the airplane's engine revealed that the number 5 piston was fragmented. The engine had last been overhauled on April 23, 1993, and had accumulated 740 hours since that overhaul. The logbook entry for the piston showed that it was a Superior Air Parts piston, part number SA640518.
Flight
Event TypeAccident
Event Time15:30 EDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 182L
Tail NumberN808HC
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsCont Motor · O-470 SERIES · Reciprocating · 230
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 49 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingBroken clouds 2500 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time19:15
Weather SourcePILO