Piper PA-38-112 accident near Byron, California, March 16, 2013
On March 16, 2013 at about 8:30 pm local time, a 1978 Piper PA-38-112, registered N99DM, was substantially damaged in an accident during initial climb near Byron, California (Byron Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
A loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- March 16, 2013 · about 8:30 pm local time
- Place
- Byron, California · Byron Airport · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA-38-112, built 1978 · all PA-38-112s on the register
- Registration
- N99DM · no longer on the register · serial 38-78A0487
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
During the initial climb after takeoff, the airplane's engine began to sputter, and it subsequently lost total power. The pilot made a forced landing in a grass field, and, during the landing roll, the right wing and fuselage were substantially damaged. Postaccident examination revealed that fuel was present in both wing tanks, and no evidence of fuel contamination was found. An attempt to run the engine was unsuccessful because of discrepancies with the airplane's electrical system, gascolator, and the engine's starter. However, none of these discrepancies would have resulted in a loss of engine power. The cause of the engine failure could not be determined.
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 initial climb defining event
The NTSB's findings
- cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 735 hours in all; 339 in this make and model; 12 in the last 90 days; 1 in the last 30 days
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 2,782 hours
- Last inspection: annual inspection, May 17, 2012
- Maximum gross weight: 1,670 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-235 (piston); 0 hours total
The flight
- Departed from: C83 Byron CA at 8:30 pm
- Destination: LVK Livermore CA
- Flight plan: none
- Runway 23, 3,000 ft by 75 ft
Weather at the time
- Light: daylight
- Wind: from 210° at 14 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 70°F (21°C), dew point 48°F (9°C)
- Altimeter: 30.04 inHg
- Observation at 7:53 pm from LVK, 13 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 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.