SEA91FA175 · Cessna TU206G
Mccall Air Taxi Cessna TU206G · Accident: total loss of engine power (non-mechanical) on approach
From Boise Air Terminal/Gowen Field (BOI) to McCall Municipal Airport (MYL)
Event
- NTSB case
- SEA91FA175
- 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
Cessna TU206G
- Aircraft type
- Cessna 206
- 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
- N7216N
- Operator
- Mccall Air Taxi
- Onboard fatalities
- Unknown
- Route
- From Boise Air Terminal/Gowen Field (BOI), Boise, IDTo McCall Municipal Airport (MYL), McCall, ID
- 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
- Approach · VFR pattern base
- 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
- Total loss of engine power (non-mechanical)
- 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, static
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Pilot in command › Procedures/directives, not followed
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
WHILE IN THE PATTERN FOR LANDING, THE ENGINE EXPERIENCED A LOSS OF POWER. THE PILOT WAS UNABLE TO LAND ON THE RUNWAY AND A FORCED LANDING WAS INITIATED TO AN OPEN SCHOOL YARD. DURING THE EMERGENCY DESCENT, THE AIRPLANE COLLIDED WITH POWER LINES AND STRUCK THE GROUND IN A NOSE DOWN ATTITUDE, VERTICAL TO THE TERRAIN. DURING THE ON SCENE INVESTIGATION, IT WAS FOUND THAT THE SPARK PLUGS WERE COATED WITH A LAYER OF BLACK CARBON. COCKPIT INSPECTION REVEALED THAT THE AUXILIARY FUEL PUMP SWITCH WAS POSITIONED IN THE LOW SETTING. THERE WERE NO MECHANICAL FAILURES OR MALFUNCTIONS NOTED.
Probable cause
PROCEDURES/DIRECTIVES WERE NOT FOLLOWED. FACTORS TO THE ACCIDENT WERE: IMPROPER FUEL BOOST PUMP SELECTOR POSITION, LEADED SPARK PLUGS AND SUNGLARE.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA91FA175
- Event ID
- 20001212X17687
- Case number
- SEA91FA175
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 1991-07-17.
- API snapshot SHA-256: 90a215c4bb251c94d645d93a2162d3c28f63639ae6b3b0953b41068536a1b1ed; retrieved 2026-09-21T01:42:13.842Z.