# NTSB SEA92FA130: Champion 7GCBC, N1812G, Prosser, WA, June 20, 1992

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: June 20, 1992, 07:00 local (14:00 UTC)
- Place: Prosser, WA
- Coordinates: 46.119754, -119.679534 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.1198&lon=-119.6795&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report September 14, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41583
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA92FA130
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41583/pdf
- Page: https://openairdocs.org/ntsb/SEA92FA130

## Probable cause

INADEQUATE INFLIGHT PLANNING/PREPARATION AND AIRSPEED WAS NOT MAINTAINED. A FACTOR TO THE ACCIDENT WAS: AN UNCONTROLLED STALL/SPIN.

## Sequence of events

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

- Loss of control - in flight, maneuvering
  - airspeed - not maintained, pilot in command (cause)
  - stall/spin - uncontrolled, pilot in command (contributing factor)
  - in-flight planning/decision - inadequate, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

A WITNESS REPORTED THAT IT WAS COMMON FOR THE STUDENT PILOT TO FLY AROUND HIS HOUSE TO WAVE HELLO (WAG THE AIRPLANE'S WINGS). THE AIRPLANE WAS APPROXIMATELY 200 FEET AGL AND MAKING A SHALLOW RIGHT TURN ABOUT THE HOUSE. WHEN THE AIRPLANE WAS APPROXIMATELY 180 DEGREES THROUGH THE TURN, THE BANK ANGLE SUDDENLY INCREASED AND THE NOSE OF THE AIRPLANE DROPPED. THE AIRPLANE COMPLETED ONE SPIN ROTATION BEFORE COLLIDING WITH THE TERRAIN IN A NOSE DOWN ATTITUDE. DURING THE POST-CRASH INSPECTION, THERE WAS NO EVIDENCE FOUND TO INDICATE A MECHANICAL FAILURE OR MALFUNCTION.

## Aircraft

- Registration: [N1812G](https://openairdocs.org/deregistered/N1812G-1995-05-05), registration cancelled 1995-05-05, S/N 96 (OpenAirDocs)
- Reported make and model: CHAMPION 7GCBC
- Registry model: [Champion 7GCBC](https://openairdocs.org/model/champion-7gcbc) (registry code 21101PK) (OpenAirDocs)
- Category: Airplane
- Serial number: 96
- Airframe hours: 1386
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Anderson, Kirk M. & Glen H.
- Registered owner: Anderson, Kirk M. & Glen H.
- Airworthiness certificate: Standard, Aerobatic
- Last inspection: Annual, October 4, 1991, 68 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; student; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: front; toxicology performed; flight hours: 169 total, 145 in this make and model, 137 as pilot in command, 16.5 in the last 90 days, 5 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 70 °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 19920620021209A](https://openairdocs.org/incident/19920620021209A), Jun 20, 1992: Bbavia 7GCBC, Prosser, WA, Substantial damage, 1 fatal. Stalled while circling low over friends residence. Lacked recent solo endorsements. Long periods no flying time.

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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