# NTSB SEA86FA155: Aeronca 7AC, N84463, Mulino, OR, July 5, 1986

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: July 4, 1986, 17:50 local (Jul 5, 1986, 00:50 UTC)
- Place: Mulino, OR
- Coordinates: 45.199684, -122.539131 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.1997&lon=-122.5391&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40288
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86FA155
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40288/pdf
- Page: https://openairdocs.org/ntsb/SEA86FA155

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, takeoff - initial climb
  - reason for occurrence undetermined (cause)
  - weather condition - carburetor icing conditions
- Forced landing, approach - vfr pattern - downwind
- Loss of control - in flight, approach - vfr pattern - final approach
  - weather condition - unfavorable wind (contributing factor)
  - compensation for wind conditions - not possible, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PVT PLT HAD BEEN GIVING RIDES AROUND THE LOCAL AREA FOR ABOUT AN HOUR. HE HAD JUST DROPPED OFF ONE PASSENGER AND PICKED UP ANOTHER. THE ACFT TAXIED FROM THE RAMP TO THE RWY 30 AND MADE A NORMAL TAKEOFF. DURING CROSSWIND TURN THE ENGINE STARTED TO MISS AND BACK FIRE. THE ACFT MADE THE DOWNWIND TURN AT ABOUT 400 FT AGL AND A CURVING BASE TO FINAL. THE ACFT STALLED AND CRASHED. WITNESSES REPORTED STRONG GUSTY WINDS EAST AND SOUTH OF THE AIRPORT. EVIDENCE SUGGESTS THE ENGINE WAS NOT OPERATING AT IMPACT; HOWEVER, POST ACCIDENT EXAM FAILED TO DISCLOSE ANY FAILURE/ MALFUNCTION. THE ACFT WAS DESTROYED BY POST IMPACT FIRE. ATMOSPHERIC CONDITIONS WERE CONDUCIVE TO CARBURETOR ICE AT THE TIME OF THE ACCIDENT.

## Aircraft

- Registration: N84463 (not matched to a registry record)
- Reported make and model: AERONCA 7AC
- Category: Airplane
- Serial number: 3159
- Engines: CONTINENTAL A-75-8 75 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Operator: Reed L. Aylett
- Registered owner: Davis C. Dave
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Airport: 4S9, Mulino, runway 30, 2,100 × 300 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 18; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: front; toxicology performed; flight hours: 100 total, 90 in this make and model, 60 as pilot in command, 10 in the last 90 days, 5 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 290° at 10 knots, gusting 15
- Visibility: 15 statute miles
- Lowest ceiling: 5,500 ft broken
- Temperature: 64 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: PPDX, 18 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 19860704030139A](https://openairdocs.org/incident/19860704030139A), Jul 4, 1986: Bbavia 7AC, Mulino, OR, Destroyed. Reported engine problems after takeoff. Stalled turning final and impacted the ground. Wind may have been a factor.

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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