Cessna 150G accident near Corinth, Mississippi, September 21, 2012
On September 21, 2012 at about 8:15 pm local time, a Cessna 150G, registered N8465J, was substantially damaged in an accident during enroute (cruise) near Corinth, Mississippi. It was a personal flight under general aviation rules (Part 91). 2 people had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The improper torque application on the crankshaft gear bolt by maintenance personnel during an engine overhaul, which resulted in the fatigue failure of the locking tab washer and gear alignment dowel and subsequent engine stoppage. Contributing to the accident was the operator’s exceedence of the engine overhaul calendar year limits recommended by the engine manufacturer.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 21, 2012 · about 8:15 pm local time
- Place
- Corinth, Mississippi · map
- Type
- Accident
- Injuries
- 2 people had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 150G · all 150Gs on the register
- Registration
- N8465J · no longer on the register · serial 15066365
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
According to the pilot, after about 2 hours of uneventful flight, a loud noise came from the engine compartment, the engine cowling shook violently, and the engine experienced a total loss of power. During the subsequent descent, the pilot attempted to restart the engine. The propeller continued to windmill, but the engine did not restart. The pilot selected a field for a forced landing, and during the landing roll, the landing gear became entangled with the crop. The airplane then nosed over and came to rest inverted, and the pilot and his wife egressed with minor injuries. Examination of the engine revealed that the crankshaft gear bolt locking tab washer and the alignment dowel for the gear mounting flange were fractured due to fatigue. This allowed the gear to rotate on the crankshaft. The fatigue resulted from improper torque application on the crankshaft gear bolt during overhaul, which had been completed 26 years and 643 total airplane flight hours before the accident. In service bulletins and service instructions, the engine manufacturer warned that improper installation of the crankshaft gear may result in "complete engine stoppage" and recommended that engines be overhauled after 12 years in service, even if the engine had not accumulated the manufacturer-specified 2,000-hour time-between-overhaul during that period.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Loss of engine power (total) during enroute (cruise) defining event
- Off-field or emergency landing during emergency descent
- Nose over/nose down during landing (landing roll)
The NTSB's findings
- cause Aircraft › Aircraft power plant › Engine (reciprocating) › Recip eng rear section › Failure
- cause Personnel issues › Task performance › Maintenance › Installation › Maintenance personnel
- factor Aircraft › Aircraft handling/service › Maintenance/inspections › Time limits › Not serviced/maintained
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land; instrument: airplane
- Flight time: 960 hours in all; 60 in this make and model
- Medical certificate: Class 2 (with waivers/limitations)
- Seat: left
- Injury: minor injuries
The aircraft
- Airframe total time: 3,968 hours
- Last inspection: annual inspection, April 12, 2012; 5 hours since
- Maximum gross weight: 1,600 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320-E2A (piston); 0 hours total
The flight
- Departed from: PUJ Paulding NW Atl GA at 5:15 pm
- Destination: MO1 Memphis TN
- Flight plan: none
Weather at the time
- Light: daylight
- Wind: from 260° at 5 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 79°F (26°C), dew point 50°F (10°C)
- Altimeter: 30.02 inHg
- Observation at 8:25 pm from TUP, 40 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.