# NTSB FTW83LA383: Pierce GS-1, N111JP, Sand Springs, OK, August 13, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 13, 1983, 17:30 local (22:30 UTC)
- Place: Sand Springs, OK
- Coordinates: 36.130363, -96.129409 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.1304&lon=-96.1294&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21017
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA383
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21017/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA383

## Sequence of events

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

- Loss of control - in flight, maneuvering
  - altitude - improper, pilot in command (cause)
  - judgment - poor, pilot in command (cause)
  - low pass - performed, pilot in command (cause)
  - stall - uncontrolled, pilot in command (cause)
- In flight collision with terrain/water, maneuvering
  - terrain condition - water,glassy (contributing factor)

## Analysis

THE ACFT COLLIDED WITH THE LAKE AFTER MANEUVERING AROUND AT LOW ALT FOR SOME TIME. A LAKE PATROLMAN REPORTED THE ACFT ALT BEFORE THE CRASH AT ABOUT 20 FT AGL. ACCORDING TO THE PLTS STATEMENT HE WAS ABOUT 50 FT HIGH WHEN HE INITIATED A 30 TO 40 DEGREE ANGLE OF BANK AND THE ACFT STALLED AND CRASHED. THE ACFT SANK IN 37 FT OF WATER BUT WAS RECOVERED THE FOLLOWING DAY.

## Aircraft

- Registration: [N111JP](https://openairdocs.org/deregistered/N111JP-1991-09-25), registration cancelled 1991-09-25, S/N 1 (OpenAirDocs)
- Reported make and model: PIERCE GS-1
- Registry model: [Pierce GEORGIAS SPECIAL](https://openairdocs.org/model/pierce-georgias-special) (registry code 0562926) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 1
- Engines: CONTINENTAL A-65 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Michael J. Jones
- Airworthiness certificate: Special, Experimental (Special)
- Departed: OF8, SAND SPRINGS, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; private; airplane ratings: single-engine land; medical: class 2, expired; seat: front; flight hours: 533 total, 31 in this make and model, 476 as pilot in command, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 7 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Temperature: 100 °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 19830813041649A](https://openairdocs.org/incident/19830813041649A), Aug 13, 1983: Amtr GEORGIASSPEC, Sand Springs, OK, Substantial damage. Stalled and crashed into the water while buzzing pleasure boats. Had invalid medical certificate.

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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