Cessna 172N accident near Enumclaw, Washington, August 9, 1996
On August 9, 1996 at about 11:00 pm local time, a Cessna 172N, registered N738PM, was substantially damaged in an accident near Enumclaw, Washington. It was an aerial observation flight under general aviation rules (Part 91). 1 person had minor injuries; 1 other was unhurt. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
failure of the engine magneto drive, which resulted in a loss of engine power. The lack of suitable terrain for a forced landing was a related factor.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 9, 1996 · about 11:00 pm local time
- Place
- Enumclaw, Washington · map
- Type
- Accident
- Injuries
- 1 person had minor injuries; 1 other was unhurt.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 172N · all 172Ns on the register
- Registration
- N738PM · registry record · serial C172-70131
- Damage
- Substantial damage
- Flight
- Aerial observation flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
During an aerial observation flight, the engine progressively lost power. The pilot made a forced landing on uneven terrain, where the airplane flipped over. Inspection of the engine revealed a failed cam follower in the magneto drive.
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: flight instructor, commercial pilot
- Ratings: single-engine land; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
- Flight time: 513 hours in all; 113 in this make and model; 100 in the last 90 days; 35 in the last 30 days; 447 as pilot in command; 90 on instruments
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: rgt
The aircraft
- Airframe total time: 6,456 hours
- Last inspection: 100-hour inspection, July 10, 1996; 101 hours since
- Maximum gross weight: 2,300 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320-H2AD (piston); 0 hours total
The flight
- Departed from: BFI Seattle WA at 8:45 pm
- Flight plan: none
- Runway 0
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 225° at 5 knots
- Visibility: 30 statute miles
- Sky: clear
- Temperature: 81°F (27°C), dew point 50°F (10°C)
- Altimeter: 30.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| 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.