# Accident 20210616009839A: Antenor Velazco LANCAIR EVOLUTION, Parker, CO, June 16, 2021

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 16, 2021, 13:45 local time
- Place: Parker, CO
- Damage: Destroyed
- Phase of flight: Landing: Approach
- Operating rules: General operating rules (Part 91)
- Location: 39.5078° N, 104.8552° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=39.5078&lon=-104.8552&mi=10
- Aircraft: N704AK, a cancelled registration (https://openairdocs.org/deregistered/N704AK-2021-10-23) (OpenAirDocs)
- Registry model: Antenor Velazco LANCAIR EVOLUTION (registry code 05635IT, https://openairdocs.org/model/antenor-velazco-lancair-evolution) (OpenAirDocs)
- Reported make and model: ANTENOR VELAZCO LANCAIR EVOLUTION
- Reported engine: P&W CANADA PT6A-135A
- People aboard: 2
- Fatal injuries: 2
- Other injuries: 0
- Pilot certificates: Unknown or foreign certificate
- NTSB investigation: [NTSB CEN21FA272](https://openairdocs.org/ntsb/CEN21FA272) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20210616009839A

## Narrative

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

ON JUNE 16 2021 AT 1345 LOCAL N704AK WHILE INBOUND TO KAPA ON THE RNAV RWY 35R APPROACH STRUCK POWER LINES 3NM SOUTH OF THE RUNWAY. THE AIRCRAFT MADE A 360 DEGREE TURN AND WHEN QUERIED BY THE CONTROLLER THE PILOT RESPONDED "WEVE HAD AN AUTOPILOT FAILURE AND ARE TURNING AROUND" SHORTLY THEREAFTER THE AIRCRAFT STRUCK POWER LINES ON A NORTHERLY HEADING AFTER FINISHING THEIR 360 DEGREE TURN. RADAR REPLAY INDICATES A DESCENDING LEFT HAND 360 DEGREE TURN WHERE THE AIRCRAFT STRUCK POWER LINES JUST AS THEY FINISHED THE TURN. THE REASON FOR THE TURN AND AUTOPILOT FAILURE IS UNKNOWN AT THIS TIME. THE AIRCRAFT WAS DESTROYED IN A POST IMPACT FIRE. WRECKAGE WAS RETAINED FOR FURTHER EXAMINATION.

09/21/21 AND 09/22/21 EXAMINATION OF THE WRECKAGE WITH NTSB, LANCAIR REP, AND P&W CANADA REP REVEALED NO ANOMOLIES WITH THE POWERPLANT. GARMIN G1000 AVIONICS, GFC700 AUTOPILOT PITCH AND ROLL SERVOS, AND INBOARD SECTIONS OF FLAPS WERE RETAINED FOR FURTHER EXAMINATION BY NTSB LABS FOR ANY EVIDENCE OF A SPLIT FLAP SCENARIO OR AUTOPILOT MALFUNCTION. THIS REPORT WILL BE AMENDED WHEN FURTHER INFORMATION IS AVAIALBLE FROM THOSE EXAMINATIONS. PRIMARY CAUSE STILL UNKNOWN.

## 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 CEN21FA272](https://openairdocs.org/ntsb/CEN21FA272), Jun 16, 2021: Antenor Velazco Lancair Evolution (N704AK), Parker, CO, destroyed, 2 fatal. Probable cause: The pilot’s diversion of attention following an asymmetric flap deployment, which resulted in a descent and collision with powerlines. Contributing to the accident was maintenance personnel’s failure…

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.