WPR23FA225 · Cessna R182
Turbo-Sphere Cessna R182 · Accident: loss of engine power (partial) during initial climb
From an unrecorded airport to Indian Creek, ID
Event
- NTSB case
- WPR23FA225
- 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
- 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 R182
- Aircraft type
- Cessna 182
- 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
- N3138C
- Operator
- Turbo-Sphere
- Onboard fatalities
- Unknown
- Route
- From not recordedTo Indian Creek, ID
- Aircraft age
- About 45 years (built 1978)
- 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
- Initial climb
- 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 engine power (partial)
- 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
- Tree(s)
- 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
- Aircraft › Aircraft power plant
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The passenger recalled that on the morning of the accident, the pilot had performed a preflight inspection and did not point out any mechanical issues with the airplane. The start-up and run-up were normal. As the airplane rotated for takeoff, the pilot reported that they had a power problem. The passenger stated that the pilot wanted to return to the airport, but the airplane had not gained enough altitude to clear the obstacles near the departure end of the runway.
Witnesses near the accident site reported that the departure roll appeared to be unusually long and the engine did not seem to be developing full power. From their vantage point they saw the airplane's nose pitch up and begin to climb, but it did not gain enough altitude to clear the trees near the departure end of the runway where the airplane impacted the top of a pine tree.
Postaccident examination of the engine revealed that the single-drive dual magneto remained attached to the engine accessory case, but not secured to the mounting pad. Both the upper and lower retaining hardware were loose, which allowed the magneto to be rotated with minimal resistance. The engine manufacturer issued a service instruction letter that cautioned that the magneto and/or its attaching hardware can become loose or unfastened following maintenance work. A review of the airplane’s maintenance records revealed that the magneto had been replaced about 15 hours before the accident flight. It is likely that the magneto’s hardware was not properly installed, torqued, or inspected, resulting in loose hardware and a subsequent loss of engine power.
Probable cause
Maintenance personnel's failure to properly torque and inspect the magneto hardware, which resulted in a partial loss of engine power.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR23FA225
- Event ID
- 20230612192360
- Case number
- WPR23FA225
- 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, cause areas. 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: 18ca94671aa2b58cee6d141f6b000572215a50d07494343dc6543f6d7ff584df; retrieved 2026-09-15T08:01:17.750Z.