Cessna 182A accident near Oracle, Arizona, September 17, 1993
On September 17, 1993 at about 5:05 pm local time, a Cessna 182A, registered N6336B, was substantially damaged in an accident near Oracle, Arizona. It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured; 2 others were unhurt. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
FAILURE OF THE CRANKSHAFT DUE TO FATIGUE.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 17, 1993 · about 5:05 pm local time
- Place
- Oracle, Arizona · map
- Type
- Accident
- Injuries
- 1 person was seriously injured; 2 others were unhurt.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 182A · all 182As on the register
- Registration
- N6336B · registry record · serial 34236
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
DURING A LOCAL VFR FLIGHT, THE ENGINE LOST POWER. THE PILOT TRIED TO LAND ON AN ASPHALT SURFACED ROAD, BUT WAS UNABLE TO REACH THE ROADWAY. DURING THE FORCED LANDING, THE AIRPLANE COLLIDED WITH TREES ON UNEVEN DESERT TERRAIN AND WAS DAMAGED. AN EXAMINATION OF THE ENGINE REVEALED THAT THE CRANKSHAFT HAD FAILED FORWARD OF THE NUMBER ONE JOURNAL. THE FRACTURED SURFACES DISPLAYED BEACH MARKS CONSISTENT WITH FATIGUE. THERE WAS NO EVIDENCE THAT THE ENGINE HAD SUSTAINED ANY HIGH TEMPERATURE DISTRESS OR LACK OF LUBRICATION. THE ENGINE HAD ACCRUED ABOUT 4434 HOURS SINCE NEW AND ABOUT 1110 HOURS SINCE IT WAS OVERHAULED ON 12/10/87.
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
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 133 hours in all; 22 in this make and model; 8 in the last 90 days; 3 in the last 30 days; 78 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 4,433 hours
- Last inspection: annual inspection, August 16, 1993; 8 hours since
- Maximum gross weight: 2,650 lb
- Seats: 4
- Landing gear: fixed
- Engine: Continental O-470 (piston); 0 hours total
The flight
- Departed from: RYN Ryan Field AZ at 4:35 pm
- Destination: RYN
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 130° at 12 knots
- Visibility: 40 statute miles
- Sky: clear
- Temperature: 90°F (32°C), dew point 0°F (-18°C)
- Altimeter: 30.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 | 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.