# NTSB CHI87LA046: Aeronca 11BC, N3969E, Lake Village, IN, December 15, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 15, 1986, 16:00 local (22:00 UTC)
- Place: Lake Village, IN
- Coordinates: 41.1193, -87.45008 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.1193&lon=-87.4501&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13710
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87LA046
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13710/pdf
- Page: https://openairdocs.org/ntsb/CHI87LA046

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, approach - vfr pattern - base leg/base to final
  - fuel system,carburetor - ice (cause)
- In flight collision with object, landing
  - object - tree(s) (contributing factor)
  - stall/mush - initiated, pilot in command (contributing factor)
  - inadequate training, pilot in command
  - lack of familiarity with aircraft, pilot in command
  - lack of total experience, pilot in command

## Analysis

THE PILOT STATED THAT HE GRADUALLY LOST POWER WHILE ON FINAL APPROACH. HE FINALLY STALLED THE AIRCRAFT AND PANCAKED IT INTO THE TREES BEFORE THE RUNWAY. THE PILOT ALSO STATED THAT HE SUSPECTED CARBURETOR ICE WAS INVOLVED.

## Aircraft

- Registration: [N3969E](https://openairdocs.org/aircraft/N3969E), registered now, S/N 11BC-54, built 1947 (OpenAirDocs)
- Reported make and model: AERONCA 11BC
- Registry model: [Aeronca 11BC](https://openairdocs.org/model/aeronca-11bc) (registry code 0191106) (OpenAirDocs)
- Registry engine: [Continental C85 series](https://openairdocs.org/engine/continental-c85-series) (registry code 17008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 11BC-54
- Airframe hours: 1500
- Engines: CONTINENTAL 85-E 85 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Lowell J. Mann
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 7, 1986, 2 hours before
- Airport: C98, Lake Village Apt.

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 71; seat: left; flight hours: 90 total, 90 in this make and model, 70 as pilot in command, 1 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 240° at 10 knots
- Visibility: 6 statute miles
- Temperature: 45 °F, dew point -0 °F
- Altimeter: 30.00 inHg
- Observed at: GYY, 28 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 19861215067849A](https://openairdocs.org/incident/19861215067849A), Dec 15, 1986: Bbavia 11BC, Lake Village, IN, Substantial damage. Engine lost power on final and aircraft impacted the trees. Uncertificated pilot reported possible carburetor icing

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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