# NTSB CHI85LA018: Hughes 500, N9034F, Grosse Ile, MI, October 18, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 17, 1984, 21:00 local (Oct 18, 1984, 01:00 UTC)
- Place: Grosse Ile, MI
- Coordinates: 42.130634, -83.150596 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.1306&lon=-83.1506&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12935
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA018
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12935/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA018

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Miscellaneous/other, standing - starting engine(s)
  - aircraft preflight - inadequate, pilot in command (cause)

## Analysis

PLT ATTEMPTED TO START HELICOPTER WITH MAIN ROTOR BLADES TIED DOWN.

## Aircraft

- Registration: [N9034F](https://openairdocs.org/aircraft/N9034F), registered now, S/N 790105S, built 1969 (OpenAirDocs)
- Reported make and model: HUGHES 500
- Registry model: [Hughes 369HS](https://openairdocs.org/model/hughes-369hs) (registry code 4470728) (OpenAirDocs)
- Registry engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Airframe hours: 3134
- Engines: ALLISON 250 375 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Randall F. Guttridge
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 10, 1984
- Departed: 2G5, GROSSE ILE, MI

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; commercial; medical: class 2, valid medical--w/ waivers/lim; flight hours: 1,110 total, 1,017 as pilot in command

## Weather

- Conditions: Visual (VMC), Night/dark
- Visibility: 15 statute miles
- Lowest ceiling: none

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19841017057559A](https://openairdocs.org/incident/19841017057559A), Oct 17, 1984: Hughes 369HS, Grosse Ile, MI, Substantial damage. Started engine with main rotors tiedown. Blade slipped out of sock, struck tail boom and turtle back.

## Other investigations on N9034F (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 CHI79FEC47](https://openairdocs.org/ntsb/CHI79FEC47), Aug 20, 1979: Hughes 369H5 (N9034F), Grosse Ile, MI, substantial damage

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.

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