# NTSB FTW85LA177: Fairchild Hiller FH-1100, N5073F, Rosston, OK, April 10, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 10, 1985, 17:49 local (23:49 UTC)
- Place: Rosston, OK
- Coordinates: 36.920597, -99.86911 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.9206&lon=-99.8691&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21718
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85LA177
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21718/pdf
- Page: https://openairdocs.org/ntsb/FTW85LA177

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, takeoff - initial climb
  - pneumatic system - leak (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
- Nose over, landing - flare/touchdown
  - terrain condition - soft (contributing factor)

## Analysis

PILOT STATED ENGINE LOST POWER DURING TAKEOFF CLIMB DUE TO A LEAK IN THE AIR LINE FROM THE ENGINE BLEED VALVE. HE ATTEMPTED TO MAKE A FORCED LANDING BUT UPON TOUCHDOWN, DUE TO HIS FORWARD MOVEMENT, THE AIRCRAFT NOSED OVER.

## Aircraft

- Registration: N5073F (not matched to a registry record)
- Reported make and model: FAIRCHILD HILLER FH-1100
- Category: Helicopter
- Serial number: 240
- Airframe hours: 1403
- Engines: DETR. DIESEL 250-C18B 278 horsepower turbo shaft
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Registered owner: Terry W. Eubank
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, October 26, 1984

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; flight hours: 919 total, 406 in this make and model, 919 as pilot in command, 87 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 45° at 4 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 79 °F

## 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 19850410070479A](https://openairdocs.org/incident/19850410070479A), Apr 10, 1985: Hiller FH1100, Rosston, OK, Destroyed. Engine power loss after liftoff with load of fertilizer. Rolled over on landing. Bleed air line air leak.

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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