NYC95LA184 · Mooney M20C
Mooney M20C · Accident: partial loss of engine power (mechanical failure) en route
From Williamsport Regional Airport (IPT) to an unrecorded destination
Event
- NTSB case
- NYC95LA184
- 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
- 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
Mooney M20C
- Aircraft type
- Mooney M20
- 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
- N9216V
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Williamsport Regional Airport (IPT), Williamsport, PATo not recorded
- 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
- En route · climb to cruise
- 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
- Partial loss of engine power (mechanical failure)
- 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
- Fuel system, carburetor › Excessive flow/output
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PILOT REPORTED THAT AFTER TAKEOFF HE OBSERVED A LOSS OF AIRSPEED, AND THE AIRPLANE WOULD NOT MAINTAIN ALTITUDE. ALSO THE LANDING GEAR FOR UNDETERMINED REASONS WOULD NOT RETRACT. THE PILOT DETERMINED THAT THE ENGINE WAS NOT PRODUCING SUFFICIENT POWER TO SUSTAIN FLIGHT, AND HE INITIATED A FORCED LANDING TO A CORNFIELD. THE ENGINE WAS REMOVED FROM THE AIRPLANE AND TESTED BY AN FAA INSPECTOR, WHO REPORTED, '...NO DISCREPANCIES WERE NOTED DURING THE ENGINE OPERATION TESTING. BOTH MAGNETOS TESTED WITHIN LIMITS. ENGINE PERFORMANCE TESTING REVEALED SLIGHTLY RICH CARBURETOR OPERATION....' THE CARBURETOR WAS TESTED AND AN NTSB INVESTIGATOR REPORTED '...FLOW RATES FOR THE SUBJECT ACCIDENT CARBURETOR WERE SLIGHTLY OUT OF TOLERANCE (EXCESS FLOW) FOR ALL THROTTLE SETTINGS GREATER THAN IDLE. THE GREATEST OUT-OF-TOLERANCE SITUATION OCCURRED AT 3/4 THROTTLE SETTING....'
Probable cause
The partial loss of engine power, as a result of an excessively rich fuel flow in the carburetor, and a subsequent forced landing. A factor relating to the accident was the malfunction of the landing gear.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record NYC95LA184
- Event ID
- 20001207X04347
- Case number
- NYC95LA184
- 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 1995-08-09.
- API snapshot SHA-256: 73b590e0d624031c9868e56b323de77b2ae530cfe2ecbf39d7589342e934aae0; retrieved 2026-09-22T23:28:40.006Z.