# Accident 19970620015229A: Hughes 369HS, Pacific Ocean, June 20, 1997

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 20, 1997, 10:30 local time
- Place: Pacific Ocean
- Damage: Destroyed
- Phase of flight: Pwr On Vertical Ldng/Rtrcrft
- Operating rules: General operating rules (Part 91)
- Aircraft: N4250N, a cancelled registration (https://openairdocs.org/deregistered/N4250N-2016-11-28) (OpenAirDocs)
- Registry model: Hughes 369HS (registry code 4470728, https://openairdocs.org/model/hughes-369hs) (OpenAirDocs)
- Registry engine: Rolls-Royce 250-C10D (registry code 54172, https://openairdocs.org/engine/rolls-royce-250-c10d) (OpenAirDocs)
- Reported make and model: HUGHES 369HS
- Reported engine: ALLSN 250C18
- People aboard: 1
- Fatal injuries: 1
- Pilot flight hours: 3,132 total, 248 in this make and model
- NTSB investigation: [NTSB LAX97LA218](https://openairdocs.org/ntsb/LAX97LA218) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970620015229A

## Narrative

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

FISH SPOTTING HELICOPTER ELECTRONIC TRIM FAILED. LOST CONTROL LANDING ON SHIP PAD. HIT WATER. ROLLED. SB ON TRIM PA

## 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 LAX97LA218](https://openairdocs.org/ntsb/LAX97LA218), Jun 20, 1997: Hughes 369HS (N4250N), Pacific Ocean (Pacific Ocean), destroyed, 1 fatal. Probable cause: The unapproved field modification of the cyclic trim switch, including the use of non-standard parts, which resulted in a hard-over lateral trim failure, and the pilot's subsequent failure to…

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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