ATL97FA029 · Mooney M20C
Mooney M20C · Accident: loss of control in flight en route
From TDF to Mount Airy Surry County Airport (MWK)
Event
- NTSB case
- ATL97FA029
- 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
- 2 · 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
- Instrument 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
- N7773M
- Operator
- Wayne A. Fleming · private individual
- Onboard fatalities
- Unknown
- Route
- From TDFTo Mount Airy Surry County Airport (MWK), MT AIRY, NC
- 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
- Loss of control in flight
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Tree(s)
- 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
- Pilot in command › Aircraft control, not maintained
- Pilot in command › Spatial disorientation
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
Shortly after takeoff in instrument meteorological conditions (IMC), the pilot made an initial radio call to approach control (ATC), then about 35 seconds later, he annouced, 'I've just lost my vacuum.' Air traffic controllers attempted to assist the pilot, but were unable to communicate with him further. Radar data showed the airplane made a left turn and climbed to 1,400 ft. After about 270 degrees of turn, the airplane's flight path became erratic. The airplane was last depicted at 1,300 ft and 2 miles south of the airport. About 4 minutes after takeoff, it collided with wooded terrain in uncontrolled flight. During the investigation, no specific reason was found for the reported loss of vacuum; however, during impact, extensive damage of the airplane occurred. Toxicology tests of the pilot's liver fluid showed 0.345 mcg/ml codeine, 0.134 mcg/ml dextromethorphan, 0.249 mcg/ml dextrorphan, and an undetermined amount of morphine. A test of the pilot's blood indicated undetermined quantities of opiates, a class of drugs which includes codeine and morphine. Tests of kidney fluid showed 0.349 mcg/ml codeine, 0.027 mcg/ml dextromethorphan, and 0.191 mcg/ml dextrorphan. The finding of these substances is consistent with prior ingestion of codeine-containing cough syrup. Codeine, a narcotic pain reliever and cough suppressant, can produce impaired judgment, disorientation, and delayed reactions.
Probable cause
failure of the pilot to maintain control of the airplane, due to spatial disorientation. Factors relating to the accident were: the pilot's use of an unapproved drug, low ceiling, restricted visibility (fog), and an undetermined anomaly with the vacuum system.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ATL97FA029
- Event ID
- 20001208X07129
- Case number
- ATL97FA029
- 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: 1007b3da0dd93962d2dd0c426fef0ff40a7ca7e44dfb80c6fb810bcc5231e76a; retrieved 2026-09-20T23:04:28.089Z.