SEA06CA056 · Cessna 150L
Cessna 150L · Accident: loss of engine power while maneuvering
From Stark's Twin Oaks Airpark (7S3) to an unrecorded destination
Event
- NTSB case
- SEA06CA056
- 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
Cessna 150L
- Aircraft type
- Cessna 150
- 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
- N11568
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Stark's Twin Oaks Airpark (7S3), Hillsboro, ORTo not recorded
- 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 engine power
- 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 › Carburetor heat, delayed
- Weather condition › Carburetor icing conditions
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The student pilot reported that he was practicing maneuvers in the practice area. The student stated that before returning to the airport, he decided to practice a power-off stall. The student climbed to 3,000 feet and leveled off before extending the flaps to full and slowing to 50 mph. The student then pulled on the carburetor heat and throttled back to idle. The student stated that before he pulled up into the stall and before feeling the buffeting, the engine lost power and the propeller stopped. The student turned toward the airport and issued a mayday call to air traffic. The student pilot did not think that he could make a successful landing at the airport and turned toward an open field to initiate an off airport forced landing. During the landing roll on soft terrain, the aircraft nosed over. The probability carburetor icing chart indicated that for the existing temperature of 44 degrees F. and a dew point of 40 degrees F, the aircraft was operating in the serious icing in cruise or climb power range. After the aircraft was recovered from the field, the engine was prepared for an engine run. The engine started without difficulty and was run at varying power settings with no anomalies noted for several minutes before it was shut down.
Probable cause
The student pilot's delayed use of carburetor heat in carburetor icing conditions while maneuvering. Soft terrain was a factor.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA06CA056
- Event ID
- 20060313X00292
- Case number
- SEA06CA056
- 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: 181f576d677920026c877cee91ed59290e9c6e2ef0533ed86213f76d56b77217; retrieved 2026-09-22T05:05:50.493Z.