# NTSB LAX88LA092: Aeronca 11AC, N9416E, Lakeport, CA, January 20, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 20, 1988, 10:30 local (18:30 UTC)
- Place: Lakeport, CA
- Coordinates: 39.039962, -122.930938 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.0400&lon=-122.9309&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 21, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 25939
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88LA092
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25939/pdf
- Page: https://openairdocs.org/ntsb/LAX88LA092

## 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, pilot in command (cause)
  - complacency, pilot in command (contributing factor)
  - ground loop/swerve - inadvertent, pilot in command
  - remedial action - inadequate, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch (contributing factor)

## Analysis

DURING LDG ROLLOUT THE ACFT VEERED OFF THE RWY, WENT INTO A DITCH & COLLIDED WITH TERRAIN CAUSING SUBSTANTIAL DAMAGE. THE SURFACE WINDS WERE ESTIMATED AT ONLY 5 KTS. THE PLT ACKNOWLEDGED THAT THE ACCIDENT MIGHT HAVE BEEN PREVENTED IF HE HAD BEEN LESS COMPLACENT DURING LANDING.

## Aircraft

- Registration: [N9416E](https://openairdocs.org/aircraft/N9416E), registered now, S/N 11AC-1053, 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&C75 series](https://openairdocs.org/engine/continental-a-c75-series) (registry code 17005, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 11AC-1053
- Airframe hours: 1550
- Engines: CONTINENTAL A-75-8F 75 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: David P. Strebel
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 1, 1987, 30 hours before
- Departed: 031, HEALDSBURG, CA
- Destination: 102, LAKEPORT, CA
- Airport: 102, Lampson, runway 28, 3,450 × 40 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 712 total, 80 in this make and model, 645 as pilot in command, 80 in the last 90 days, 40 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 225° at 5 knots
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 61 °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 19880120057349A](https://openairdocs.org/incident/19880120057349A), Jan 20, 1988: Bbavia 11AC, Lakeport, CA, Substantial damage. Lost directional control landing the tail dragger. Left runway into a ditch. Blamed complacency.

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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