# Accident 20201106015399A: Agusta Spa A109S, Los Angeles, CA, November 6, 2020

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: November 6, 2020, 15:00 local time
- Place: Los Angeles, CA
- Damage: Substantial damage
- Phase of flight: Landing: Approach
- Operating rules: Air taxi and commuter (Part 135)
- Operator: H0CA
- Location: 34.0580° N, 118.2081° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=34.0580&lon=-118.2081&mi=10
- Aircraft: N109EX, a cancelled registration (https://openairdocs.org/deregistered/N109EX-2021-11-30) (OpenAirDocs)
- Registry model: Agusta A109S (registry code 0260103, https://openairdocs.org/model/agusta-a109s) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada PW207C (registry code 52203, https://openairdocs.org/engine/pratt-whitney-canada-pw207c) (OpenAirDocs)
- Reported make and model: AGUSTA SPA A109S
- Reported engine: P&W CANADA PW207C
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Commercial pilot
- Pilot flight hours: 4,579 total, 81 in this make and model, 15 in the last 90 days
- NTSB investigation: [NTSB WPR21LA039](https://openairdocs.org/ntsb/WPR21LA039) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20201106015399A

## Narrative

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

WHILE ON APPROACH TO THE HELIPAD AT USC KECK MEDICAL CENTER, THE AIRCRAFT LOST CONTROL BEFORE TOUCHDOWN  AND CAME TO REST ON IT'S SIDE. THE PILOT INDICATED THAT HE EXPERIENCED AN UN COMMANDED RIGHT YAW. ALL OCCUPANTS DEPARTED THE AIRCRAFT WITH THE PIC SUFFERING SERIOUS INJURIES. EVALUATION OF WRECKAGE IS SCHEDULED. WILL AMEND AFTER RESULTS.

## 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 WPR21LA039](https://openairdocs.org/ntsb/WPR21LA039), Nov 6, 2020: Agusta A109 (N109EX), Los Angeles, CA, substantial damage. Probable cause: The loss of tail rotor control due to the separation of the tail rotor duplex bearing ring nut from the thrust sleeve, which resulted in the loss of helicopter 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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