# Accident 19910722029099A: Skrsky S58H, Daggett, CA, July 22, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 22, 1991, 21:40 local time
- Place: Daggett, CA
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: Rotorcraft external load (Part 133)
- Operator: ILFL
- Location: 34.8592° N, 116.8109° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=34.8592&lon=-116.8109&mi=10
- Aircraft: N58WH (not matched to a registry record)
- Reported make and model: SKRSKY S58H
- Reported engine: WRIGHT R1820*
- People aboard: 3
- Fatal injuries: 0
- Pilot flight hours: 6,000 total, 1,778 in this make and model, 49 in the last 90 days
- NTSB investigation: [NTSB LAX91LA320](https://openairdocs.org/ntsb/LAX91LA320) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910722029099A

## Narrative

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

LOST PARTIAL POWER,ENGINE BACKFIRING. AUTOROTATED TO LAND. HIT BERM. ROLLED OVER. FOUND BROKEN CONNECTING ROD.

## 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 LAX91LA320](https://openairdocs.org/ntsb/LAX91LA320), Jul 22, 1991: Sikorsky SK-58 (N58WH), Daggett, CA, substantial damage. Probable cause: THE FAILURE OF AN ENGINE CONNECTING ROD CAUSING A REDUCTION OF ENGINE POWER TO THE POINT WHERE LEVEL FLIGHT COULD NOT BE MAINTAINED. A FACTOR IN THE ACCIDENT WAS THE DARK NIGHT CONDITIONS WHICH…

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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