# NTSB CHI92DCA04: Tinsman RV6, N42JT, Foristell, MO, September 13, 1992

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: September 13, 1992, 18:30 local (23:30 UTC)
- Place: Foristell, MO
- Coordinates: 38.809829, -90.959709 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.8098&lon=-90.9597&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor
- Status: Completed, report October 25, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15203
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI92DCA04
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15203/pdf
- Page: https://openairdocs.org/ntsb/CHI92DCA04

## Probable cause

THE PARTIAL FAILURE OF THE FUEL INJECTION SYSTEM.  FACTORS RELATED TO THE ACCIDENT ARE THE PILOT'S INSUFFICIENT ALTITUDE TO REACH THE RUNWAY FROM THE DOWNWIND LEG, AND THE PRESENCE OF TRANSMISSION WIRES IN THE OFF AIRPORT LANDING SITE.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, approach - vfr pattern - downwind
  - fuel injection control/system - failure,partial (cause)
- Forced landing, descent - emergency
- In flight collision with object, descent - emergency
  - object - wire,transmission (contributing factor)
  - altitude - inadequate, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE AIRPLANE LOST ENGINE POWER ON THE DOWNWIND LEG OF THE LANDING PATTERN. THE AIRPLANE WAS AT ALTITUDE THAT THE PILOT JUDGED TO BE INSUFFICIENT TO REACH THE AIRSTRIP, AND AN OFF AIRPORT LANDING WAS ATTEMPTED. THE AIRPLANE STRUCK TRANSMISSION LINES DURING THE APPROACH AND CRASHED IN A FIELD. AN EXAMINATION OF THE FUEL INJECTION SYSTEM DISCOVERED A FAULTY SEAL WHICH ALLOWED THE ENGINE TO RUN TOO RICH TO SUSTAIN OPERATION.

## Aircraft

- Registration: [N42JT](https://openairdocs.org/aircraft/N42JT), registered now, S/N 20612, built 1991 (OpenAirDocs)
- Reported make and model: TINSMAN RV6
- Registry model: [Tinsman James W RV-6](https://openairdocs.org/model/tinsman-james-w-rv-6) (registry code 05608PA) (OpenAirDocs)
- Registry engine: [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series) (registry code 41509, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 20612
- Airframe hours: 400
- Engines: LYCOMING IO-320-EIA 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Tinsman, James Wesley
- Registered owner: Tinsman, James Wesley
- Last inspection: Continuous airworthiness, October 9, 1991, 110 hours before
- Departed: NONE
- Airport: PUT, Woodliff Air Park

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; commercial, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 20,000 total, 110 in this make and model, 15,000 as pilot in command, 31 in the last 90 days, 16.2 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 63 °F
- Altimeter: 30.00 inHg
- Observed at: SUS, 18 nm away

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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