# NTSB CHI83LA005: Grumman AA-1C, N8055W, Madison, IN, October 4, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 3, 1982, 19:00 local (Oct 4, 1982, 00:00 UTC)
- Place: Madison, IN
- Coordinates: 38.860183, -86.489273 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.8602&lon=-86.4893&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 3, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71536
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI83LA005
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71536/pdf
- Page: https://openairdocs.org/ntsb/CHI83LA005

## 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, takeoff - initial climb
  - ignition system,spark plug - disconnected (cause)
  - maintenance - inadequate, other maintenance personnel (cause)
- Forced landing, landing - flare/touchdown
- Nose gear collapsed, takeoff - roll/run
  - landing gear,nose gear - failure,total
  - landing gear,nose gear - overload

## Analysis

AFTER TAKEOFF FROM A TOUCH & GO THE ENG LOST POWER. THE #1 CYL UPPER PLUG LEAD NUT HAD BACKED OFF & THE LEAD WAS FOUND RESTING IN THE PLUG. THE #2 & #4 CYL UPPER PLUG LEAD NUTS HAD BACKED OFF & BOTH LEADS WERE NOT IN THE SPARK PLUGS BUT WERE RESTING ON THE CYL. THE #4 CYL LOWER PLUG LEAD HAD BACKED OFF ALLOWING IT TO DROP OUT OF THE PLUG.

## Aircraft

- Registration: [N8055W](https://openairdocs.org/aircraft/N8055W), registered now, S/N AA1C-0095, built 1978 (OpenAirDocs)
- Reported make and model: GRUMMAN AA-1C
- Registry model: [Grumman American Avn. AA-1C](https://openairdocs.org/model/grumman-american-avn-aa-1c) (registry code 3960100) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: AA1C0095
- Engines: LYCOMING O-235 108 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Ralph O. Rogers
- Registered owner: Ralph O. Rogers
- Departed: IMS, MADISON, IN
- Destination: IMS, MADISON, IN
- Airport: IMS, Madison, runway 36, 5,000 × 80 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; airline transport, flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 11,000 total, 1,005 in this make and model, 10,000 as pilot in command, 335 in the last 90 days, 200 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 5 statute miles
- Temperature: 167 °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 19821003052489A](https://openairdocs.org/incident/19821003052489A), Oct 3, 1982: Gulstm AA1C, Madison, IN, Substantial damage. Engine lost partial power. Crash landed in a open field. 4 spark plug lead nuts backed off. Corrosion on terminals.

## Other investigations on N8055W (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 CHI84LA228](https://openairdocs.org/ntsb/CHI84LA228), Jun 10, 1984: Grumman AA-1C (N8055W), Madison, IN, substantial damage

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.