# Accident 19790122001339A: Helio 500, Grisdale, WA, January 22, 1979

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 22, 1979, 08:00 local time
- Place: Grisdale, WA
- Damage: Substantial damage
- Phase of flight: Forced/Precautionary Landing
- Operating rules: General operating rules (Part 91)
- Location: 47.3570° N, 123.6124° W: Placed by OpenAirDocs: center of Grisdale, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.3570&lon=-123.6124&mi=10
- Aircraft: N9256F (not matched to a registry record)
- Reported make and model: HELIO 500
- Reported engine: ALLSN 250C20
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 10,202 total, 515 in this make and model, 515 in the last 90 days
- NTSB investigation: [NTSB SEA79DYE11](https://openairdocs.org/ntsb/SEA79DYE11) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19790122001339A

## Narrative

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

HELICOPTER LOST POWER ON CLIMB OUT RESULTING IN EMERGENCY LANDING FROM LOW ALTITUDE.

## 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 SEA79DYE11](https://openairdocs.org/ntsb/SEA79DYE11), Jan 22, 1979: Hughes 369HS (N9256F), Aberdeen, WA, substantial damage

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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