# NTSB NYC91LA243: Lake LA-4, N1012L, Wilton, ME, September 21, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 21, 1991, 12:30 local (16:30 UTC)
- Place: Wilton, ME
- Location: 44.6020° N, 70.2449° W: Placed by OpenAirDocs: center of Wilton, ME, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.6020&lon=-70.2449&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report April 27, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 37017
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC91LA243
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37017/pdf
- Page: https://openairdocs.org/ntsb/NYC91LA243

## Probable cause

THE PILOT'S IMPROPER RECOVERY FROM A BOUNCED LANDING ON ROUGH WATER WHICH RESULTED IN THE RIGHT WING TIP CONTACTING THE WATER CAUSING THE AIRPLANE TO NOSE OVER AND SINK.  FACTORS RELATED TO THE ACCIDENT WERE, THE PILOT'S LOW TIME AND EXPERIENCE IN THIS TYPE AIRCRAFT.

## Sequence of events

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

- Dragged wing,rotor,pod,float or tail/skid, landing - flare/touchdown
  - recovery from bounced landing - improper, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
  - aircraft control - not maintained, pilot in command (cause)
- Nose over, landing - roll
  - terrain condition - water,rough (cause)

## Analysis

THE PILOT SAID WHEN HE LANDED ON ROUGH WATER THE AIRPLANE BOUNCED AND THE RIGHT WING TIP CONTACTED THE WATER.  THE AIRPLANE NOSED OVER AND SANK.

## Aircraft

- Registration: [N1012L](https://openairdocs.org/deregistered/N1012L-2012-07-19), registration cancelled 2012-07-19, S/N 255, built 1960 (OpenAirDocs)
- Reported make and model: LAKE LA-4
- Registry model: [Lake LA-4](https://openairdocs.org/model/lake-la-4) (registry code 5110302) (OpenAirDocs)
- Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 225
- Airframe hours: 1928
- Engines: LYCOMING O-360-AI0 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Al'S Air Service, Inc.
- Registered owner: Al'S Air Service, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 9, 1991, 5 hours before
- Departed: 3B5
- Destination: 3B5

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 172 total, 47 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 10 knots, gusting 15
- Visibility: 10 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 19910921063029A](https://openairdocs.org/incident/19910921063029A), Sep 21, 1991: Conaer LA4, Wilton, ME, Substantial damage. Bounced and nosed over landing in rough water.

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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