LAX01LA029 · Piper PA-28-140
Piper PA-28-140 · Accident: loss of control in flight while maneuvering
From General William J Fox Airfield (WJF) to Pearson Field (VUO)
Event
- NTSB case
- LAX01LA029
- 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
- 1 · all aircraft and ground
- Ground fatalities
- 0
- 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-28-140
- Aircraft type
- Piper PA-28
- 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
- N16503
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From General William J Fox Airfield (WJF), Lancaster, CATo Pearson Field (VUO), Vancouver, WA
- 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
- Maneuvering
- 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
- Loss of control in flight
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall
- 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 › Airspeed(vs), not maintained
- Pilot in command › Stall, inadvertent
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The single engine airplane collided with terrain in a right wing low, nose low attitude after the pilot lost control and stalled the airplane. The commercial pilot just received his instrument airplane flight instructor rating the day before the accident. He and his passenger departed on a cross-country visual flight rules (VFR) flight. The departure airport was reporting VFR conditions at the time of departure; however, weather observations in the vicinity of the accident site were reporting instrument flight rules weather conditions with low ceilings. Witnesses, who observed the accident, described the airplane flying low over an interstate and thought the airplane was attempting to land on the road. They described the airplane's wings as "shaking or vibrating," and "moving side to side" before it made sharp right turn and descended to ground impact. A post-accident examination of the airplane and engine revealed no pre-impact anomalies that would have affected its operation. Toxicological tests on the pilot revealed he was utilizing at least two different substances; one being a multisymptom cold reliever and the other being a nutritional supplement. Dextromethorphan and its metabolites, doxylamine, ephedrine and its metabolites, and acetaminophen were all detected in the pilot's system. Some of the aforementioned drugs impose impairing side effects, where others acted as stimulants. Adverse side effects of the medications and distraction or sensory disturbance as a result of the condition for which the medications were ingested, may have contributed to the accident.
Probable cause
the pilot's failure to maintain airspeed while maneuvering, which resulted in an inadvertent stall. A contributing factor was the pilot's use of impairing medications.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX01LA029
- Event ID
- 20001212X22202
- Case number
- LAX01LA029
- 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: 561caabfd0943510eb93f2cabce232bf2be4291c33eca06a1dce26f91a1bac19; retrieved 2026-09-20T20:47:59.035Z.