# NTSB CHI87LA075: Aeronca 11AC, N86079, Dodgeville, WI, February 5, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 5, 1987, 14:30 local (20:30 UTC)
- Place: Dodgeville, WI
- Coordinates: 42.959064, -90.129936 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.9591&lon=-90.1299&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 10, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 13727
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87LA075
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13727/pdf
- Page: https://openairdocs.org/ntsb/CHI87LA075

## Sequence of events

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

- Loss of control - on ground/water, taxi - from landing
  - weather condition - tailwind (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - aircraft handling - improper, pilot in command (cause)
- In flight collision with object, taxi - from landing
  - terrain condition - downhill (contributing factor)
  - object (contributing factor)

## Analysis

WHILE TAXIING AFTER LANDING ON RUNWAY 12, A TAILWIND WAS ENCOUNTERED. THE ACFT SPUN AROUND, SLID BACKWARDS OFF THE RWY, DOWN A STEEP EMBANKMENT AND STRUCK A LARGE ROCK. THE PLT REPORTED WINDS FROM 270 DEGREES AT 12 KNOTS GUSTING TO 18 KNOTS.

## Aircraft

- Registration: [N86079](https://openairdocs.org/aircraft/N86079), registered now, S/N 11AC-502, built 1946 (OpenAirDocs)
- Reported make and model: AERONCA 11AC
- Registry model: [Aeronca 11AC](https://openairdocs.org/model/aeronca-11ac) (registry code 0191102) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 11AC502
- Airframe hours: 1393
- Engines: CONTINENTAL A-65-8 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Stephen Hartl
- Registered owner: Stephen J. Hartl
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 3, 1986, 130 hours before
- Departed: C31, HARTFORD, WI
- Airport: 55C, Dogeville Municipal, runway 12, 2,750 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; private; airplane ratings: single-engine land, single-engine sea; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 316 total, 133 in this make and model, 272 as pilot in command, 67 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 12 knots, gusting 18
- Visibility: 15 statute miles
- Lowest ceiling: none

## 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 19870205001739A](https://openairdocs.org/incident/19870205001739A), Feb 5, 1987: Bbavia 11AC, Dodgeville, WI, Substantial damage. The aircraft veered off the runway during landing, striking a rock. The pilot landed downwind in gusty conditions.

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.