NYC94LA074 · Piper PA-28R-200
RNT Associates Piper PA-28R-200 · Accident: partial loss of engine power (mechanical failure) while maneuvering
From Lawrence Municipal Airport (LWM) to Westchester County Airport (HPN)
Event
- NTSB case
- NYC94LA074
- 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
Piper PA-28R-200
- Aircraft type
- Piper PA-28
- 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
- N5335T
- Operator
- RNT Associates
- Onboard fatalities
- Unknown
- Route
- From Lawrence Municipal Airport (LWM), Lawrence, MATo Westchester County Airport (HPN), NY
- 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
- Maneuvering
- 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
- Throttle/power lever, linkage › Disconnected
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PILOT WAS MANEUVERING IN THE TRAFFIC PATTERN, WHEN HE OBSERVED A DROP IN MANIFOLD PRESSURE TO 13 INCHES AND A LOSS OF ENGINE POWER. THROTTLE MOVEMENT HAD NO AFFECT ON THE MANIFOLD PRESSURE. HE INITIATED A FORCED LANDING TO RUNWAY 29. THE PILOT ATTEMPTED TO STOP THE AIRPLANE WITH HEAVY BRAKING, BUT THERE WAS INSUFFICIENT RUNWAY AVAILABLE AND TREES WERE OFF THE END OF THE RUNWAY. HE LIFTED THE AIRPLANE OFF THE RUNWAY AND RETRACTED THE GEAR AND SOME WING FLAPS. HE TRIED AGAIN TO INCREASE ENGINE POWER, BUT THERE WAS STILL NO RESPONSE. HE ELECTED TO DITCH THE AIRPLANE IN A LAKE. EXAMINATION OF THE ENGINE REVEALED THAT THE THROTTLE CABLE WAS DISCONNECTED FROM THE FUEL INJECTOR CONTROL ARM.
Probable cause
The partial loss of engine power as the result of a disconnected throttle cable, and the subsequent forced landing and ditching in water to avoid collision with trees.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record NYC94LA074
- Event ID
- 20001206X01168
- Case number
- NYC94LA074
- 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: 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: c9f6ab8fc64988a7d36b9a4759d413226551056a08f2948f1a357edfb60bf036; retrieved 2026-09-23T01:12:20.089Z.