# NTSB FTW87LA099: Aircoupe 415D, N93884, Lakeway, TX, April 17, 1987

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: April 17, 1987, 18:30 local (23:30 UTC)
- Place: Lakeway, TX
- Coordinates: 30.380626, -97.950958 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.3806&lon=-97.9510&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report March 30, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 22351
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW87LA099
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22351/pdf
- Page: https://openairdocs.org/ntsb/FTW87LA099

## Sequence of events

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

- Undershoot, approach - vfr pattern - base leg/base to final
  - proper touchdown point - misjudged, pilot in command (cause)
  - altitude - inadequate, pilot in command (cause)
  - proper descent rate - not maintained, pilot in command (cause)
- In flight collision with object, landing - flare/touchdown
  - object - residence (contributing factor)
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - ground (contributing factor)

## Analysis

THE COMMERCIAL PILOT OF AN AIRCOUPE WITH ONE PASSENGER ON BOARD ATTEMPTED TO EXECUTE AN OVERHEAD 360 DEGREE TURN TO LAND ON RUNWAY 16 AT LAKEWAY AIRPORT NEAR AUSTIN, TX. THE PILOT DID NOT HAVE ADEQUATE ALTITUDE TO COMPLETE THE MANEUVER. THE AIRCRAFT IMPACTED THE GARAGE PORTION OF AN UNOCCUPIED HOUSE UNDER CONSTRUCTION. THE AIRCRAFT WAS SUBSTANTIALLY DAMAGED. THE PILOT AND PASSENGER RECEIVED MINOR INJURIES.

## Aircraft

- Registration: N93884 (not matched to a registry record)
- Reported make and model: AIRCOUPE 415D
- Category: Airplane
- Serial number: 1207
- Engines: CONTINENTAL C-90 90 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Vernon Mounton
- Registered owner: Vernon J. Mouton
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 30, 1986
- Airport: 3R9, Lakeway, runway 16, 3,200 × 70 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 68; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 14,318 total, 11 in this make and model, 14,318 as pilot in command, 6 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 7 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 88 °F, dew point 48 °F
- Altimeter: 29.00 inHg
- Observed at: AUS, 16 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 19870417010379A](https://openairdocs.org/incident/19870417010379A), Apr 17, 1987: Univar 415C, Austin, TX, Substantial damage. The aircraft landed short, hitting a house on final. The piot reported a downdraft.

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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