LAX92LA105 · Cessna 170B
Cessna 170B · Accident: loss of control in flight while maneuvering
From Battle Mountain Airport (BAM) to L66 · Corona, CA
Event
- NTSB case
- LAX92LA105
- 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
- Instrument Meteorological Cond
Cessna 170B
- Aircraft type
- Cessna 170
- 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
- N39HP
- Operator
- Howard L. Prescott · private individual
- Onboard fatalities
- Unknown
- Route
- From Battle Mountain Airport (BAM), BATTLE MTN, NVTo L66 · Corona, 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
- Maneuvering · turn to reverse direction
- 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
- Visual flight rules (VFR) flight into instrument meteorological conditions (IMC); 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 › Remedial action, delayed
- Pilot in command › Stall, inadvertent
- Pilot in command › VFR flight into imc, continued
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE CERTIFICATED COMMERCIAL PILOT, THE SOLE OCCUPANT, WAS ON AN INTERMEDIATE SEGMENT OF A BUSINESS RELATED CROSS COUNTRY FLIGHT. SOME WITNESSES OBSERVED THE AIRPLANE FOLLOWING A HIGHWAY OVER A 7,500 FOOT MOUNTAIN PASS AT AN ALTITUDE OF ABOUT 300 FEET AGL. A SNOW STORM WITH VISIBILITY ESTIMATED AT ABOUT 120 FEET WAS IN PROGRESS. OVERCAST CEILINGS WERE ESTIMATED AT ABOUT 500 FEET AGL. AN AIRMET FOR TURBULENCE AND ICING CONDITIONS WAS IN EFFECT FOR THE AREA OF FLIGHT. OTHER WITNESSES OBSERVED THE AIRPLANE MANEUVER OVER THE HIGHWAY, TURN RIGHT AND DESCEND INTO THE TERRAIN.
Probable cause
THE PILOT'S DELAY IN REVERSING DIRECTION, HIS CONTINUED FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS, HIS FAILURE TO MAINTAIN ADEQUATE AIRSPEED AND INADVERTENT STALL WHILE MANEUVERING TO REVERSE DIRECTION. CONTRIBUTING TO THE ACCIDENT WAS WEATHER CONDITIONS THAT CONSISTED OF LOW CEILINGS, SNOW, AND ICING CONDITIONS.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX92LA105
- Event ID
- 20001211X14019
- Case number
- LAX92LA105
- 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. 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: c1f2defaffcdb3efbd6f7c34fa5cb880a0fd2d749255edaa8f6e19056c4f2e88; retrieved 2026-09-21T01:23:50.207Z.