Accident Mooney M20E Super 21 N86UM, Tuesday 2 April 2024
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Date:Tuesday 2 April 2024
Type:Silhouette image of generic M20P model; specific model in this crash may look slightly different    
Mooney M20E Super 21
Registration: N86UM
MSN: 1137
Year of manufacture:1966
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:near Alpine, AR -   United States of America
Phase: En route
Departure airport:Heber Springs Municipal Airport, AR (KHBZ)
Destination airport:Tyler-Pounds Regional Airport, TX (TYR/KTYR)
Investigating agency: NTSB
Confidence Rating: Information verified through data from accident investigation authorities
On April 2, 2024, about 1056 central daylight time, a Mooney M20E airplane, N86UM, sustained substantial damage when it was involved in an accident near Alpine, Arkansas. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

According to the pilot, while in cruise flight in a gradual descent, the airplane’s two carbon monoxide (CO) detectors began alerting, and he felt symptoms of CO poisoning. The pilot closed the cabin vents, opened a small cockpit window, and attempted to open the door, but was unsuccessful. The pilot decided to not continue the flight to the nearest airport; he shut down the engine and perform a forced landing to a field. During the forced landing, the airplane impacted unsuitable terrain and sustained substantial damage to the forward fuselage.

The airplane was retained for further examination.

Accident investigation:
Investigating agency: NTSB
Report number: 
Status: Preliminary report
Download report: Preliminary report


NTSB (in former c/s)


Revision history:

02-Apr-2024 20:46 aus Added
02-Apr-2024 20:50 ASN Updated [Time, Departure airport, Source, Narrative]
02-Apr-2024 22:11 RobertMB Updated [Time, Location, Departure airport, Destination airport, Source, Narrative]
02-Apr-2024 22:12 RobertMB Updated [Time, Narrative]
02-Apr-2024 22:23 RobertMB Updated [Category]
03-Apr-2024 06:26 Anon. Updated [Category]
03-Apr-2024 06:27 ASN Updated [Category]
08-Apr-2024 19:40 Captain Adam Updated [Time, Source, Narrative, Accident report]

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