# NTSB SEA94LA239: Aeronca 7AC, N85564, Nampa, ID, September 13, 1994

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 13, 1994, 10:50 local (16:50 UTC)
- Place: Nampa, ID
- Coordinates: 43.600688, -116.539672 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.6007&lon=-116.5397&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 14, 1995
- Report: Approved by Office Director
- NTSB case key (mKey): 42023
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA94LA239
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42023/pdf
- Page: https://openairdocs.org/ntsb/SEA94LA239

## Probable cause

DIRECTIONAL CONTROL WAS NOT MAINTAINED. A FACTOR TO THE ACCIDENT WAS: INADEQUATE SUPERVISION.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, dual student (cause)
  - supervision - inadequate, pilot in command(cfi) (contributing factor)
- Nose over, landing - roll

## Analysis

DURING THE LANDING ROLL ON A LOCAL INSTRUCTIONAL FLIGHT, THE AIRPLANE BEGAN TO SWERVE TO THE RIGHT. LEFT RUDDER CONTROL WAS APPLIED; HOWEVER, THE AIRPLANE TRAVELED OFF THE EDGE OF THE RUNWAY INTO THE SOFT SOIL AND NOSED OVER.

## Factual narrative

On September 13, 1994, at 1050 mountain daylight time, an Aeronca 7AC, N85564, nosed over during the landing roll at the Nampa Municipal Airport, Nampa, ID.  Visual meteorological conditions prevailed at the time and no flight plan was filed for the local instructional flight.  The airplane was substantially damaged and the private pilot and flight instructor were not injured.

The flight instructor reported that the purpose of the flight was to check out the private pilot in a tailwheel airplane.  During the landing roll on runway 29, with the private pilot at the controls, the airplane began to swerve to the right.  Left rudder control was applied, however, the airplane exited the side of the runway into the soft soil and nosed over.

## Aircraft

- Registration: [N85564](https://openairdocs.org/aircraft/N85564), registered now, S/N 7AC-4306, built 1946 (OpenAirDocs)
- Reported make and model: AERONCA 7AC
- Registry model: [Aeronca 7AC](https://openairdocs.org/model/aeronca-7ac) (registry code 2110102) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 7AC-4306
- Airframe hours: 3067
- Engines: CONTINENTAL A65-8 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Rocky Mountain Air
- Registered owner: Rocky Mountain Air
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 2, 1994, 20 hours before
- Airport: S67, Nampa Municipal, runway 29, 4,050 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: rear; flight hours: 5,466 total, 74 in this make and model, 5,067 as pilot in command, 285 in the last 90 days, 92 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 280° at 7 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 34 °F
- Altimeter: 29.00 inHg
- Observed at: U35, 6 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 19940913026869A](https://openairdocs.org/incident/19940913026869A), Sep 13, 1994: Bbavia 7AC, Nampa, ID, Substantial damage. Swerved right on landing roll. Used left rudder but left runway into soft soil. Nosed over.

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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