# Accident 20201221019079A: Navion NAVION A, Livermore, CA, December 21, 2020

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 21, 2020, 15:46 local time
- Place: Livermore, CA
- Airport: Livermore Municipal Airport
- Damage: Destroyed
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 37.6931° N, 121.8116° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=37.6931&lon=-121.8116&mi=10
- Aircraft: N4106K, registered now (https://openairdocs.org/aircraft/N4106K) (OpenAirDocs)
- Registry model: Navion NAVION A (registry code 6150104, https://openairdocs.org/model/navion-navion-a) (OpenAirDocs)
- Registry engine: Continental E185 series (registry code 17014, https://openairdocs.org/engine/continental-e185-series) (OpenAirDocs)
- Reported make and model: NAVION NAVION A
- Reported engine: CONT MOTOR E185 SERIES
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport, flight instructor
- Pilot flight hours: 17,431 total, 10 in this make and model, 1 in the last 90 days
- NTSB investigation: [NTSB WPR21LA072](https://openairdocs.org/ntsb/WPR21LA072) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20201221019079A

## Narrative

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

A NAVION A N4106K TOOK OFF FROM LIVERMORE, CA. AIRPORT FOR TEST FLIGHT AND ON DOWNWIND LEG RETURNING TO RUNWAY, ENGINE LOST POWER, PILOT THEN TURNED BASE, TOUCHED DOWN INSIDE AIRPORT PERIMETER AND HIT A CEMENT BLOCK THAT SHEARED OFF 4' OF LEFT WING.

PILOT STATED THE AIRCRAFT DID NOT MAKE IT TO PATTERN ALTITUDE (1400') PERHAPS AROUND 1000' WHEN ENGINE STARTED TO SPUTTER AND THEN QUITE JUST BEFORE TURNING FOR RIGHT BASE.

PILOT DID NOT NOTICE THE CEMENT BLOCKS AND MISSED A TRAILER UNTIL LAST SECONDS AFTER TOUCH-DOWN.

AIRCRAFT SUSTAINED SUBSTANTIAL DAMAGE TO LEFT WING & LEFT WING TIP TANK THAT WAS COMPLETELY SHEAR OFF OF WING, APPROXIMATELY 4' OF WING.

THE AIRCRAFTS PILOT WAS NOT INJURED.

## 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 WPR21LA072](https://openairdocs.org/ntsb/WPR21LA072), Dec 21, 2020: Navion Navion A (N4106K), Livermore, CA, substantial damage. Probable cause: The improper installation of the gascolator fuel inlet line and hose clamp connection, which resulted in the total loss of engine power.

## Other reports on N4106K (2)

Matched to the same aircraft by N-number and date.

- [Incident 19960608027849I](https://openairdocs.org/incident/19960608027849I), Jun 8, 1996: Tmpson NAVIONA (N4106K), Reno, NV, Minor damage. Narrative: pilot reports that his aircraft N4106K was struck and damaged by rocks and debris blown by 197AT, L1011, operated by American transair, during taxi…
- [Incident 19860911055079I](https://openairdocs.org/incident/19860911055079I), Sep 11, 1986: Tmpson NAVIONA (N4106K), Vineland, NJ, Minor damage. Veered off side of runway during crosswind landing. Nose gear was damaged.

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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