# NTSB CHI85LA040: Cessna 150M, N704GX, Wyatt, IN, November 3, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 3, 1984, 15:10 local (20:10 UTC)
- Place: Wyatt, IN
- Coordinates: 41.690822, -86.14994 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.6908&lon=-86.1499&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12949
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA040
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12949/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA040

## 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, maneuvering
  - throttle/power lever,linkage - disconnected (cause)
  - maintenance,installation - improper, other maintenance personnel (cause)
  - remedial action - attempted, pilot in command(cfi)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - dirt bank/rising embankment
- Nose gear collapsed, landing - roll
  - landing gear,nose gear - overload

## Analysis

WHILE PRACTICING GROUND REFERENCE MANEUVERS AT 800 FT AGL THE ENGINE POWER DROPPED FROM 2,500 TO 1,500 RPM. DURING THE FORCED LANDING ROLLOUT THE NOSE GEAR COLLAPSED WHEN IT CONTACTED A DIRT BANK. INVESTIGATION REVEALED THAT THE THROTTLE CONTROL ROD END BOLT BECAME DISCONNECTED. THE MISSING ATTACHMENT HARDWARE WAS NOT FOUND. THE ENGINE HAD BEEN INSTALLED ON THE ACFT 13.7 HRS PRIOR TO THE ACCIDENT.

## Aircraft

- Registration: [N704GX](https://openairdocs.org/aircraft/N704GX), registered now, S/N 15078610, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA 150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15078610
- Airframe hours: 3497
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Mishawaka Air Activities, Inc
- Airworthiness certificate: Standard, Utility
- Last inspection: 100 hour, August 31, 1984, 14 hours before
- Departed: 3C1, MISHAWAKA, IN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 794 total, 200 in this make and model, 794 as pilot in command, 58 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 18 knots
- Visibility: 12 statute miles
- Lowest ceiling: none
- Temperature: 52 °F
- Altimeter: 29.00 inHg
- Observed at: EKM, 15 nm away

## 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 19841103059919A](https://openairdocs.org/incident/19841103059919A), Nov 3, 1984: Cessna 150M, Wyatt, IN, Substantial damage. Throttle control rod end bolt became disengaged in flight with unchangeable low power. Too low for a safe landing.

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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