Cessna P210N N4632A
6 September 2010 · Caledonia, Michigan, United States · No injuries
Summary
On 6 September 2010 at about 12:45 local time, a Cessna P210N registered N4632A, operated by Centurion Aviation LLC, was involved in an accident near Caledonia, Michigan, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 12:45
- Classification
- Accident
- Location
- Caledonia, Michigan, United States
- Nearest airport
- Gerald R. Ford IAP (GRR)
- Coordinates
- 42.7947, -85.5161
- Aircraft
- Cessna P210N
- Registration
- N4632A
- Category
- Airplane
- Engines
- 1
- Operator
- Centurion Aviation LLC
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Instructional
- Phase of flight
- Not recorded
- Route
- Grand Rapids → Grand Rapids
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- CEN10FA521
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
A loss of engine power as a result of a fatigue failure of the crankshaft due to the loss of engine case through-bolt torque. Contributing to the accident was a mechanic's use of incorrect hardware.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot and certified flight instructor were in a holding pattern during an instrument proficiency check when they heard a bang from the airplane's engine area. They initiated a forced landing and the airplane impacted terrain at the base of a hill. Fuel leaked and a ground fire ensued, resulting in substantial damage to the left wing. No airframe preimpact anomalies were observed on-scene. An engine teardown inspection revealed a separation of the crankshaft No. 3 short cheek consistent with fatigue. Additionally, the No. 2 lower through-bolt had the lowest torque value of all bolts and incorrect hardware was used on that through-bolt. Fretting was observed on the mating surfaces of the main bearing supports near the No. 2 through-bolt and its bearing had spun out of its support. Engine logbook entries indicated a mechanic replaced cylinders that would have required the removal and installation of hardware on the No. 2 through-bolt, approximately 19 months prior to the accident.
Quoted verbatim from the NTSB record.
Other Cessna P210N accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 22 May 2010 | Cessna P210N | Petaluma, California, United States | Pine Lake Leasing Group LLC | No injuries | - |
| 21 May 2010 | Cessna P210N | Cambridge, New York, United States | Kinderhook Aviation LLC | No injuries | - |
| 4 Apr 2010 | Cessna P210N | Leavenworth, Washington, United States | Norris Brown | No injuries | - |
| 18 Feb 2010 | Cessna P210N | Carthage, North Carolina, United States | Parish Havner H JR | Minor injuries | - |
| 3 Mar 2010 | Cessna P210N | Arcadia, Florida, United States | McDermott Wayne E | Serious injuries | - |
| 6 Mar 2010 | Cessna P210N | Miami, Florida, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 13 Jun 2010 | Bell 47G | Plymouth, Michigan, United States | - | No injuries | - |
| 11 Oct 2010 | Drake Ronald A ACRO SPORT 1 | Fowlerville, Michigan, United States | - | Serious injuries | - |
| 25 Jul 2010 | Beechcraft A24R | Muskegon, Michigan, United States | Christopher F. Porter | Serious injuries | - |
| 15 Jun 2010 | Cessna 172 | Traverse City, Michigan, United States | Northwestern Michigan College | Unknown | - |
| 2 Mar 2010 | Schulke AVID MAGNUM | Lowell, Michigan, United States | - | No injuries | - |
| 2 Oct 2010 | Cessna 182Q | Sparta, Michigan, United States | Kenneth A. Thompson | No injuries | - |