CEN14LA319 · Grumman G 164 UNDESIGNAT
Grumman G 164 UNDESIGNAT · Accident: loss of engine power (total) while maneuvering
From Anadarko, OK to Anadarko, OK
Event
- NTSB case
- CEN14LA319
- 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
Grumman G 164 UNDESIGNAT
- Aircraft type
- Grumman G-164
- 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
- N455Y
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Anadarko, OKTo Anadarko, OK
- Aircraft age
- About 52 years (built 1962)
- 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 · 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 engine power (total)
- 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
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The commercial pilot reported that, on the day before the accident, a mechanic had replaced the radial engine's magneto seals. The pilot performed a successful magneto check and run-up after the magneto seal installation. On the day after the maintenance (accident flight), the engine run-up was normal, and a successful magneto check was performed before takeoff. The agricultural airplane took off with a load of chemicals from a private airstrip. While the airplane was climbing, the engine began to lose power, and as the pilot turned back to the airstrip, the engine lost all power. When the airplane was about 100 ft above the ground, the pilot chose to land the airplane in a small open field. He reported that he thought that the airplane was beginning to stall as he pulled the throttle all the way back and pushed the stick forward. The airplane subsequently impacted the ground and flipped over.
Review of available engine logbooks did not show any anomalies that would have led to the loss of engine power. The engine was not examined, and the reason for the loss of power could not be determined.
Probable cause
The total loss of engine power while climbing after takeoff for reasons that could not be determined based on the available information.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN14LA319
- Event ID
- 20140625X23648
- Case number
- CEN14LA319
- 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, 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: c8392a67e01a9c27c8561173e6678bbc4ec276d52b39d390b279e4276248ca09; retrieved 2026-09-16T00:29:02.188Z.