ERA14FA345 · Mooney M20F
Mooney M20F · Accident: aerodynamic stall/spin on approach
From Potsdam Municipal Airport Damon Field (PTD) to Lake Placid Airport (LKP)
Event
- NTSB case
- ERA14FA345
- 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
- 3 · 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
Mooney M20F
- 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
- N6467Q
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Potsdam Municipal Airport Damon Field (PTD), Potsdam, NYTo Lake Placid Airport (LKP), Lake Placid, NY
- Aircraft age
- About 47 years (built 1967)
- 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
- Approach · VFR pattern crosswind
- 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
- Aerodynamic stall/spin
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Action/decision
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The accident airplane and another airplane approached the single runway from opposite directions. A witness reported hearing the pilot of the accident airplane reporting positions relative to the airport; he did not hear the pilot of the other airplane make any transmissions. Postaccident interviews with the pilot of the other airplane revealed that he was using a portable radio that likely became disabled due to its location and/or configuration in the cockpit; however, due to the type of airspace, neither airplane was required to have radio communications. As both airplanes approached the runway, both pilots saw the other airplane and successfully completed go-arounds to the right. The accident airplane then entered a steep climb, and, as it made a crosswind turn, the nose dropped, and the airplane entered a spin to the ground. Examination of the wreckage revealed that the landing gear were down and that the flaps were likely somewhat extended; however, the degree to which they were extended or whether they were in transit could not be determined. Wreckage damage indicated that the airplane was in a left spin at the time of impact. No preexisting mechanical anomalies were found that would have precluded normal operation.
Probable cause
The pilot’s failure to maintain adequate airspeed for the airplane’s configuration and flight profile, which resulted in an exceedance of the wing’s critical angle-of-attack and a subsequent aerodynamic stall/spin.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA14FA345
- Event ID
- 20140719X24057
- Case number
- ERA14FA345
- 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: 52de88ab60c31ad01b193066bbfe0de3cdd266c5cf48b0f4aad0a575682f4f14; retrieved 2026-09-14T17:21:58.158Z.