WPR23LA343 · Boeing A75N1(PT17)
Boeing A75N1(PT17) · Accident during initial climb
From Monticello Airport (U64) to an unrecorded destination
Event
- NTSB case
- WPR23LA343
- 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
- Event fatalities
- Unknown
- 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
Boeing A75N1(PT17)
- Aircraft type
- Boeing A75
- 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
- N10KP
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Monticello Airport (U64), Monticello, UTTo not recorded
- Aircraft age
- About 81 years (built 1942)
- 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
- Unknown or undetermined
- 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 pilot departed the airport, conducted a low pass over the runway, and was climbing the airplane to pattern altitude when the engine began to lose power. The pilot stated that the engine did not lose complete power; however, the rpm and airspeed continued to decline and he chose to make a forced landing. The airplane landed in heavily vegetated terrain and during the landing roll the left main landing gear collapsed, resulting in substantial damage to the lower left wing. A postaccident examination of the airframe and engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation. Although remnants of a high-temperature cloth were found between the air filter and particle screen, no debris was found in the filter or induction screen and the air intake did not appear to be impeded. Based on the available information, the reason for the loss of engine power could not be determined.
Probable cause
A partial loss of engine power for reasons that could not be determined.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR23LA343
- Event ID
- 20230914193063
- Case number
- WPR23LA343
- 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: 6772b7531a5c94173ffcc69e7a6bd47cfd32a2e4eedb0804e95ec7e3831a93b7; retrieved 2026-09-16T18:07:14.222Z.