# Accident 20200718019159A: Beech A23-24, Burns Flat, OK, July 18, 2020

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 18, 2020, 22:45 local time
- Place: Burns Flat, OK
- Airport: Clinton Sherman
- Damage: Substantial damage
- Phase of flight: Landing: Approach
- Operating rules: General operating rules (Part 91)
- Location: 35.3817° N, 99.2011° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=35.3817&lon=-99.2011&mi=10
- Aircraft: N3412C, registered now (https://openairdocs.org/aircraft/N3412C) (OpenAirDocs)
- Registry model: Beech A23-24 (registry code 1151226, https://openairdocs.org/model/beech-a23-24) (OpenAirDocs)
- Registry engine: Lycoming I0360 series (registry code 41515, https://openairdocs.org/engine/lycoming-i0360-series) (OpenAirDocs)
- Reported make and model: BEECH A23-24
- Reported engine: LYCOMING I0360 SER
- People aboard: 4
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 309 total
- NTSB investigation: [NTSB CEN20LA292](https://openairdocs.org/ntsb/CEN20LA292) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20200718019159A

## Narrative

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

THE AIRCRAFT DEPARTED KELK, ELK CITY OKLAHOMA FOR A PART 91 PERSONNEL NIGHT VFR LOCAL FLIGHT. THE PILOT WAS PROPERLY RATED AND THE AIRCRAFT WAS IN ANNUAL. THE FLIGHT PROGRESSED NORMALLY, CRUISING AT 3000 MSL FOR THE FIRST 1 HOUR AND 40 MINUTES. AFTER DEPARTING FROM OVERHEAD OF KCLF, CLINTON REGIONAL AIRPORT, CLINTON OK, THE AIRCRAFT TRAVELED SOUTH UNTIL SOUTH OF INTERSTATE 40. THE AIRCRAFT THEN TURNED APPROXIMATELY 255 HEADING TOWARD KCSM, CLINTON SHERMAN AIRPORT, BURNS FLAT, OK. THE AIRCRAFT MADE AN APPROXIMATELY 10 MILE STRAIGHT IN APPROACH TO 17R, AT 4 MILES AND PATTERN ALTITUDE, THE PILOT NOTICED A GRADUAL ENGINE POWER LOSS.

THE PILOT SWITCHED FUEL TANKS, TURNED ON THE FUEL BOOST PUMP, PUSHED THE THROTTLE FULL IN, PUSHED THE MIXTURE FULL IN AND PUSHED THE PROP FULL IN. THE ENGINE WAS RUNNING BUT THERE WAS NO THROTTLE CONTROL AND THE ENGINE WAS NOT PRODUCING SIGNIFICANT POWER TO MAINTAIN LEVEL FLIGHT. THE AIRCRAFT LANDED IS A GRASS FIELD AND ROLLED ABOUT 300 FEET.

THE PILOT AND PASSENGERS EXITED THE AIRCRAFT AND NO INJURIES WERE REPORTED.

THE NEXT DAY I INSPECTED THE AIRCRAFT. DURING LANDING ROLL, THE AIRCRAFT ROLLED OVER THREE TERRACES. THE AIRCRAFT CAME TO REST NEXT TO A DIRT ROAD. THE AIRCRAFT RECEIVED SUBSTANTIAL DAMAGE. BOTH MAIN LANDING GEARS WHERE BROKEN AT THE PIVOT POINTS AND BOTH WINGS HAD A LARGE CRESS FROM THE LEADING EDGE TO THE TRAILING EDGE. THE AIRCRAFT EITHER HARD LANDED OR BOUNCED OVER THE TERRACES TO CAUSE THE MAIN LANDING GEAR DAMAGE.  THE NOSE GEAR WAS NOT DAMAGED AND THE PROP DID NOT IMPACT THE GROUND.

THE ENGINE COWLING WAS REMOVED THE ENGINE COWLING TO INSPECT THE ENGINE AND ENGINE CONTROLS. THE THROTTLE CONTROL CABLE WAS FOUND DISCONNECTED FROM THE ENGINE FUEL SERVO. A SEARCH OF THE ENGINE COMPARTMENT WAS COMPLETED AND THERE WERE NO THROTTLE CABLE BOLT, NUT OR WASHER FOUND.  NO OTHER ANOMALIES WERE NOTED.

## 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 CEN20LA292](https://openairdocs.org/ntsb/CEN20LA292), Jul 19, 2020: Beech A23-24 (N3412C), Burns Flat, OK, substantial damage. Probable cause: The mechanic’s improper maintenance when he reinstalled the fuel servo during the last annual inspection, which resulted in a loss of engine power during cruise flight when the throttle control…

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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