# NTSB DEN88LA163: Enstrom 280C, N111CD, Glendive, MT, July 19, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 19, 1988, 17:20 local (23:20 UTC)
- Place: Glendive, MT
- Location: 47.1065° N, 104.7109° W: Placed by OpenAirDocs: center of Glendive, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.1065&lon=-104.7109&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 2, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 17510
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN88LA163
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17510/pdf
- Page: https://openairdocs.org/ntsb/DEN88LA163

## Sequence of events

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

- Loss of control - in flight, hover
  - weather condition - high density altitude (contributing factor)
  - weather condition - crosswind (contributing factor)
  - lack of total experience in type operation, pilot in command (contributing factor)
  - aircraft performance,helicopter hover performance - exceeded (cause)
  - rotor rpm - not maintained, pilot in command (cause)
- Roll over, landing - flare/touchdown
  - terrain condition - none suitable (contributing factor)
  - precautionary landing - performed, pilot in command

## Aircraft

- Registration: [N111CD](https://openairdocs.org/deregistered/N111CD-1990-08-31), registration cancelled 1990-08-31, S/N 1035 (OpenAirDocs)
- Reported make and model: ENSTROM 280C
- Registry model: [Enstrom Helicopter 280C](https://openairdocs.org/model/enstrom-helicopter-280c) (registry code 3300505) (OpenAirDocs)
- Category: Helicopter
- Serial number: 1035
- Airframe hours: 1040
- Engines: LYCOMING HIO-360-EIAD 205 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Kohler, Terry J.
- Registered owner: Kohler, Terry J.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 8, 1988, 8 hours before
- Departed: GDV, GLENDIVE, MT
- Destination: GDV

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; private, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 4,201 total, 90 in this make and model, 3,622 as pilot in command, 150 in the last 90 days, 49 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 15 knots, gusting 20
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 79 °F
- Altimeter: 30.00 inHg

## 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 19880719028449A](https://openairdocs.org/incident/19880719028449A), Jul 19, 1988: Enstrm 280C, Glendive, MT, Substantial damage. Drop in RPM while in hovering turn. Unable to correct. Landed in gully and entered dynamic rollover. No malfunction

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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