# NTSB DEN84LA201: Cessna 177RG, N33215, Cheyenne, WY, June 29, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 29, 1984, 13:14 local (19:14 UTC)
- Place: Cheyenne, WY
- Coordinates: 41.140552, -104.790763 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.1406&lon=-104.7908&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16417
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84LA201
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16417/pdf
- Page: https://openairdocs.org/ntsb/DEN84LA201

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, approach - vfr pattern - final approach
  - throttle/power lever,cable - failure,total (cause)
  - maintenance,installation - improper, other maintenance personnel (cause)
  - facility,inadequate compliance determination, other maintenance personnel (cause)
- Forced landing, descent - emergency
- In flight collision with object, descent - emergency
  - object - tree(s)

## Analysis

THE AIRCRAFT COLLIDED WITH A TREE DURING AN EMERGENCY LANDING FOLLOWING LOSS OF THROTTLE CONTROL AT A LOW RPM. EXAMINATION REVEALED THAT AN UNCERTIFIED THROTTLE CABLE HAD BEEN INSTALLED, IT FAILED AT THE ATTACHMENT TO THE THROTTLE BODY.

## Aircraft

- Registration: [N33215](https://openairdocs.org/deregistered/N33215-2013-08-15), registration cancelled 2013-08-15, S/N 177RG0922, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA 177RG
- Registry model: [Cessna 177RG](https://openairdocs.org/model/cessna-177rg) (registry code 2073709) (OpenAirDocs)
- Registry engine: [Lycoming IO-360-A1B6D](https://openairdocs.org/engine/lycoming-io-360-a1b6d) (registry code 41593, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 177RG0922
- Airframe hours: 1400
- Engines: LYCOMING IO-360-A1B6D 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: David Stewart
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, October 28, 1983, 26 hours before
- Airport: CYS, Cheyenne, runway 12, 6,691 × 150 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 940 total, 31 in this make and model, 33 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 12 knots
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 75 °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 19840629031589A](https://openairdocs.org/incident/19840629031589A), Jun 29, 1984: Cessna 177RG, Cheyenne, WY, Substantial damage. Crash occurred during forced landing when bogus throttle cable separated and power could not be applied.

## Other investigations on N33215 (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 DEN87LA001](https://openairdocs.org/ntsb/DEN87LA001), Oct 6, 1986: Cessna 177RG (N33215), Glenwood Spring, CO, destroyed

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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