CEN11CA637 · Aero Commander S2R
Aero Commander S2R · Accident: loss of engine power (partial) while maneuvering
From Park Rapids Municipal Airport Konshok Field (PKD) to Park Rapids, MN
Event
- NTSB case
- CEN11CA637
- 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
Aero Commander S2R
- Aircraft type
- Aero Commander S2
- 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
- N8962Q
- Operator
- Heuer Daniel C H · private individual
- Onboard fatalities
- Unknown
- Route
- From Park Rapids Municipal Airport Konshok Field (PKD), Park Rapids, MNTo Park Rapids, MN
- 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 137: Agricultural
- 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
- 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)
- 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
- Not determined › Not determined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
While returning to the airport after completing an aerial application, the pilot noticed a reduction in engine RPM and a rise in oil temperature. The pilot was unable to maintain altitude and he elected to execute a forced landing to a road. During the forced landing, the left wing contacted a tree and pivoted the airplane into trees. Postaccident examination of the airplane showed both wing spars and the right elevator were bent. Based on his observations during the engine failure and his past engine failure experience, the pilot suspected the main bearing failed within the engine. The engine was not disassembled for further examination and the cause of the engine failure was not determined.
Probable cause
The loss of engine power for undetermined reasons.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN11CA637
- Event ID
- 20110912X02622
- Case number
- CEN11CA637
- 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: dc766503ba051fe53d1310398b358995844ac273df084ab40ce66d16f866e96b; retrieved 2026-09-15T16:43:40.430Z.