WPR15FA039 · Cessna 140A UNDESIGNAT
Cessna 140A UNDESIGNAT · Accident: loss of control in flight while maneuvering
From Frazier Lake Airpark (1C9) to Monterey Bay Academy Airport (CA66)
Event
- NTSB case
- WPR15FA039
- 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
- 2 · 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
Cessna 140A UNDESIGNAT
- Aircraft type
- Cessna 140
- 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
- N5612C
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Frazier Lake Airpark (1C9), Hollister, CATo Monterey Bay Academy Airport (CA66), Watsonville, CA
- Aircraft age
- About 64 years (built 1950)
- 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 · low-altitude flying
- Defining eventThe 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
- Wire
- 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
- Environmental issues › Physical environment
- Personnel issues › Action/decision
- Personnel issues › Psychological
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The airline transport pilot and passenger were flying in an area of wooded, rolling hills and valleys. When the airplane did not arrive at its destination as scheduled, a search was initiated. The wreckage was located the next day in a valley about 5 miles from the departure airport, where it came to rest beneath overhead distribution power lines. The unmarked lines were located about 300 ft above ground level, in an east-west orientation, and were anchored between two H-frame pole assemblies that stood on either side of the valley. There were no witnesses to the accident, but residences near the accident site reported a power outage near the time of the accident.
Examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. The propeller, right wing leading edge, and right wing strut exhibited impact marks consistent with a wire strike.
Given the position of the sun about the time of the accident, it is likely that sun glare contributed to the pilot's inability to see the power lines as he flew the airplane along the valley at low altitude.
Probable cause
The pilot’s failure to maintain clearance from power lines while flying at a low altitude. Contributing to the accident was the obscuration of the pilot’s visibility due to sun glare.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR15FA039
- Event ID
- 20141109X51608
- Case number
- WPR15FA039
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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: e3e2b0f10d042dd1f168e10bc6db606d7f435770f4c9302b08444264f156088b; retrieved 2026-09-14T17:28:37.222Z.