# Accident 20230411003999A: Miller Glenn F RV-12, Climax, NC, April 11, 2023

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 11, 2023, 11:00 local time
- Place: Climax, NC
- Damage: Destroyed
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 35.9339° N, 79.6838° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=35.9339&lon=-79.6838&mi=10
- Aircraft: N543GM, a cancelled registration (https://openairdocs.org/deregistered/N543GM-2023-07-26) (OpenAirDocs)
- Registry model: Miller Glenn F RV-12 (registry code 05638UA, https://openairdocs.org/model/miller-glenn-f-rv-12) (OpenAirDocs)
- Registry engine: Viking 110 (registry code 63700, https://openairdocs.org/engine/viking-110) (OpenAirDocs)
- Reported make and model: MILLER GLENN F RV-12
- Reported engine: VIKING 110
- People aboard: 2
- Fatal injuries: 1
- Other injuries: 1
- Pilot certificates: Commercial pilot, flight instructor
- NTSB investigation: [NTSB ERA23FA188](https://openairdocs.org/ntsb/ERA23FA188) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20230411003999A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON APRIL 11,2023 AT 1132 EST, AN EXPERIMENTAL AMATEUR-BUILT RV-12 AIRPLANE, ^PRIVACY DATA OMITTED^, WAS DESTROYED WHEN IT WAS INVOLVED IN AN ACCIDENT NEAR THE GREENSBORO EXECUTIVE AIRPORT (3A4), IN CLIMAX, NORTH CAROLINA. THE LEFT SEAT PILOT HAD FATAL INJURIES AND THE OCCUPANT IN THE RIGHT SEAT HAD SERIOUS INJURIES. VIDEO SURVEILLANCE SHOWS THE AIRPLANE DOING A TOUCH AND GO LANDING THEN RETURNED TO A FULL STOP LANDING. THE AIRCRAFT ATTEMPTED A TAKEOFF BUT ABORTED THE TAKEOFF AND THEN TAXIED BACK TO RUNWAY 35 AND TOOK OFF. THE AIRCRAFT CLIMBED INITIALLY,BUT THEN STOPPED CLIMBING AND MADE AN ABRUPT LEFT TURN AND BEGAN FLYING OVER US HIGHWAY 421 SOUTHBOUND NEAR THE TREE TOP LEVEL. THE AIRPLANE MADE CONTACT WITH AN OVERPASS AND CAME TO REST INVERTED ON A HILL NEXT TO THE HIGHWAY AND CAUGHT FIRE AFTER IMPACT. THE FINDINGS INCLUDE 2 OUT OF 4 SPARK PLUGS SHOWED GROUND ELECTRODE TIPS FRACTURED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA23FA188](https://openairdocs.org/ntsb/ERA23FA188), Apr 11, 2023: Miller Glenn F RV-12 (N543GM), Climax, NC, destroyed, 1 fatal. Probable cause: The airplane owner/builder’s inappropriate use of a lower grade fuel than that required by the airplane and engine operations manual, which resulted in engine detonation and the degradation and…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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