# NTSB LAX93LA139: Acro Sport Acro Sport, N98GS, Lake Riverside, CA, March 6, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 6, 1993, 10:45 local (18:45 UTC)
- Place: Lake Riverside, CA
- Location: 33.5187° N, 116.8121° W: Placed by OpenAirDocs: center of Lake Riverside, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.5187&lon=-116.8121&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 15, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27940
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX93LA139
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27940/pdf
- Page: https://openairdocs.org/ntsb/LAX93LA139

## Probable cause

THAT THE PILOT MISJUDGED THE LANDING/FLARE ALTITUDE.  CONTRIBUTING TO THIS ACCIDENT WAS THE LOSS OF POWER FOR UNDETERMINED REASONS.

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - reason for occurrence undetermined (contributing factor)
- Forced landing, descent - emergency
- Hard landing, landing - flare/touchdown
  - terrain condition - open field
  - flare - misjudged, pilot in command (cause)

## Analysis

THE AMATEUR BUILT EXPERIMENTAL AIRPLANE LOST POWER SHORTLY AFTER TAKEOFF. THE PILOT OPERATED THE FUEL SYSTEM WOBBLE PUMP, BUT WAS UNABLE TO RESTART THE ENGINE.  THE PILOT MISJUDGED THE LANDING/FLARE ALTITUDE IN THE OPEN AND UNOBSTRUCTED FIELD.  THE SUBSEQUENT HARD LANDING CAUSED DAMAGE TO THE MAIN LANDING GEARS AND BOTH WINGS.  THE PILOT REPORTED THAT HE BELIEVES FUEL STARVATION CONTRIBUTED TO THE LOSS OF POWER.  HE COULD NOT, HOWEVER, IDENTIFY THE REASONS FOR THE FUEL STARVATION.

## Aircraft

- Registration: [N98GS](https://openairdocs.org/deregistered/N98GS-1996-12-12), registration cancelled 1996-12-12, S/N 227 (OpenAirDocs)
- Reported make and model: Acro Sport ACRO SPORT
- Registry model: [Starn EAA ACRO SPORT](https://openairdocs.org/model/starn-eaa-acro-sport) (registry code 0564689) (OpenAirDocs)
- Category: Airplane
- Serial number: 227
- Airframe hours: 391
- Engines: LYCOMING O-290-G 125 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Minert, Charles G., doing business as 0
- Registered owner: Minert, Charles G.
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, October 21, 1992, 6 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: center; flight hours: 1,940 total, 100 in this make and model, 1,872 as pilot in command, 38 in the last 90 days, 10 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 45° at 5 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 75 °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 19930306004419A](https://openairdocs.org/incident/19930306004419A), Mar 6, 1993: Amtrea ACROSPORT, Lake Riverside, CA, Substantial damage. Lost power on takeoff.

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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