NYC01IA046 · Mooney M20C
Mooney M20C · Incident en route
From Lynchburg Regional Airport - Preston Glenn Field (LYH) to Murray-Calloway County Airport Kyle-Oakley Field (CEY)
Event
- NTSB case
- NYC01IA046
- 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
- Incident
- 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
- N942TB
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Lynchburg Regional Airport - Preston Glenn Field (LYH), Lynchburg, VATo Murray-Calloway County Airport Kyle-Oakley Field (CEY), Murray, KY
- 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 · 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
- Miscellaneous/other
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- None
Cause areas
- Unknown › Air conditioning/heating/pressurization system(s), incorrect
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
During cruise flight, the pilot became incapacitated. The pilot rated passenger was able to fly the airplane toward an airport and wake the pilot. The pilot landed uneventfully, but suffered from toxic levels of carbon monoxide. Examination of the airplane revealed a hole in the cabin air scat tubing. The hole was in the vicinity of the joint that connected the number one cylinder to the exhaust manifold, and there was a visible gap in the joint. Further examination revealed that the sometime during the airplane's history, the scat tubing had been misrouted.
Probable cause
The incorrect routing of the cabin air scat tubing by an unknown person, which resulted in a carbon monoxide leak into the cabin, and subsequent pilot incapacitation.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record NYC01IA046
- Event ID
- 20001215X45425
- Case number
- NYC01IA046
- 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, damage. 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: a6c03a354bff7871be830af3819d99fc897a2279dbeda2770d35ed9791181264; retrieved 2026-09-21T20:02:22.944Z.