# Accident 19770708023199A: Hughes 369HS, Mackinaw, IL, July 8, 1977

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 8, 1977
- Place: Mackinaw, IL
- Damage: Substantial damage
- Phase of flight: Low Level Operations
- Location: 40.5339° N, 89.3555° W: Placed by OpenAirDocs: center of Mackinaw, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.5339&lon=-89.3555&mi=10
- Aircraft: N9153F, a cancelled registration (https://openairdocs.org/deregistered/N9153F-1983-11-23) (OpenAirDocs)
- Registry model: Hughes 369HS (registry code 4470728, https://openairdocs.org/model/hughes-369hs) (OpenAirDocs)
- Reported make and model: HUGHES 369HS
- Reported engine: ALLSN
- Fatal injuries: 0
- Pilot flight hours: 3,125 total, 500 in this make and model, 70 in the last 90 days
- NTSB investigation: [NTSB CHI77FEV33](https://openairdocs.org/ntsb/CHI77FEV33) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19770708023199A

## Narrative

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

STATOR CASE P/N 6871300 FAILED.SPRAY GEAR ARMS LIMITED MANEUVERABILITY FOR SAFE AUTOROTATION.

## 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 CHI77FEV33](https://openairdocs.org/ntsb/CHI77FEV33), Jul 8, 1977: Hughes 369C (N9153F), Mackinaw, IL, substantial damage

## Other reports on N9153F (2)

Matched to the same aircraft by N-number and date.

- [Accident 19801004049809A](https://openairdocs.org/incident/19801004049809A), Oct 4, 1980: Hughes 369HS (N9153F), Silverton, CO, Substantial damage, 3 fatal. Helicopter struck high tension wires and crashed during low level operation.
- [Accident 19760518012809A](https://openairdocs.org/incident/19760518012809A), May 18, 1976: Hughes 369HS (N9153F), Elkhart, KS, Substantial damage. Bird struck spray boom brace and it hit tailboom. Spraying sagebrush.

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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