LAX05CA104 · Piper PA-32-301
Piper PA-32-301 · Accident while standing
From P32 · Williams, AZ to L67 · Rialto, CA
Event
- NTSB case
- LAX05CA104
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Piper PA-32-301
- Aircraft type
- Piper PA-32
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N8339P
- Operator
- Robert H. Christman · private individual
- Onboard fatalities
- Unknown
- Route
- From P32 · Williams, AZTo L67 · Rialto, CA
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Standing · engine(s) start-up
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Miscellaneous/other
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Pilot in command › Aircraft handling, improper
- Pilot in command › Miscellaneous equipment, activated
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The airplane collided on the ground with obstacles after the engine started following the pilot's movement of the propeller by hand. When the pilot initially attempted to start the engine the starter did not properly engage. The pilot exited the airplane and moved the propeller by hand. Two passengers remained in the airplane's rear seats. The transient parking area was equipped with tie down chains, but the pilot had not secured the airplane. The engine suddenly started when the pilot turned the propeller, the pilot fell down, and the airplane commenced moving with increasingly rapid speed at near full engine power. After the runaway airplane rolled about 300 feet and nearly collided with two commuter-type airplanes and dozens of passengers/bystanders, the airplane impacted the side of an unoccupied horse trailer.
Probable cause
the pilot's improper ground handling procedure and failure to ensure the magnetos were off prior to movement of the propeller.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX05CA104
- Event ID
- 20050404X00402
- Case number
- LAX05CA104
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: a46590828f8bdd0c376e846635dbf36b667668b2e214e51a6e7a5128f0583f21; retrieved 2026-09-22T06:15:11.953Z.