# Accident 20210818014409A: Cook Timothy HUMMER 260L, Livingston, TN, August 18, 2021

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 18, 2021, 19:00 local time
- Place: Livingston, TN
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 36.4170° N, 85.3051° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=36.4170&lon=-85.3051&mi=10
- Aircraft: N777TC, registered now (https://openairdocs.org/aircraft/N777TC) (OpenAirDocs)
- Registry model: Cook Timothy HUMMER 260L (registry code 05637XV, https://openairdocs.org/model/cook-timothy-hummer-260l) (OpenAirDocs)
- Registry engine: Lycoming VO-435-A1F (registry code 42200, https://openairdocs.org/engine/lycoming-vo-435-a1f) (OpenAirDocs)
- Reported make and model: COOK TIMOTHY HUMMER 260L
- Reported engine: LYCOMING VO-435-A1F
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 782 total, 130 in this make and model, 3 in the last 90 days
- NTSB investigation: [NTSB ERA21LA335](https://openairdocs.org/ntsb/ERA21LA335) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20210818014409A

## Narrative

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

AIRCRAFT DEPARTED 8A3 TO THE NORTH. THE AIRCRAFT ACCELERATED THROUGH ETL AND BEGAN ITS DEPARTURE CLIMB. AT APPROXIMATELY 100 FT AGL THE ENGINE QUIT. PILOT RESPONDED BY CONDUCTING AN AUTOROTATION. DURING THE DECENT THE ENGINE SPUTTERED A BIT BUT FAILED TO RESTART. THE HELICOPTER LANDED HARD IN THE GRASS ON THE LEFT SIDE OF THE RUNWAY. THE SOIL CONDITIONS WERE WET AND  ON A SLOPE. THE AIRCRAFT YAWED UPON LANDING AND THE AIRCRAFT ROLLED OVER ON THE RIGHT SIDE OF THE AIRCRAFT.

INITIAL VISUAL INSPECTION OF THE ENGINE REVEALED NOTHING REMARKABLE. INSPECTION OF THE FUEL REVEALED NOTHING REMARKABLE. ALL FLIGHT CONTROLS HAD CONTINUITY. INITIAL INSPECTION REVEALED AIRCRAFT IN AN AIRWORTHY CONDITION. PILOT WAS CURRENT AND NO COMPETENCY ISSUES WERE REVEALED.

## 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 ERA21LA335](https://openairdocs.org/ntsb/ERA21LA335), Aug 18, 2021: Hummer 260L (N777TC), Livingston, TN, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined. Contributing to the accident was the pilot’s operation of the helicopter in a flight regime that would not allow for a…

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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