# NTSB SEA91LA259: Grumman AA-1, N6182L, Granite Falls, WA, October 1, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 30, 1991, 18:00 local (Oct 1, 1991, 01:00 UTC)
- Place: Granite Falls, WA
- Coordinates: 48.05093, -121.739143 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.0509&lon=-121.7391&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 28, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 41554
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA259
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41554/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA259

## Probable cause

THE PILOT'S DECISION TO NOT PERFORM A GO-AROUND AND A MISJUDGED DISTANCE.

## Sequence of events

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

- Overrun, landing - roll
- On ground/water collision with object, landing - roll

## Analysis

WHILE LANDING ON A GRASS STRIP, THE AIRPLANE TOUCHED DOWN AND BOUNCED. THE PILOT APPLIED POWER AND THE AIRPLANE SETTLED TO THE RUNWAY.  THE PILOT FELT THAT THERE WAS SUFFICIENT ROOM TO STOP ON THE 1,500 FOOT STRIP AND APPLIED BRAKES, HOWEVER, THE AIRPLANE DID NOT HAVE SUFFICIENT ROOM TO STOP AND RAN OFF THE END OF THE RUNWAY, THROUGH A BARBED WIRE FENCE AND INTO AN OPEN FIELD.

## Aircraft

- Registration: [N6182L](https://openairdocs.org/aircraft/N6182L), registered now, S/N AA1-0382, built 1970 (OpenAirDocs)
- Reported make and model: GRUMMAN AA-1
- Registry model: [American AA-1](https://openairdocs.org/model/american-aa-1) (registry code 0630610) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 0382
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Carl C. Ulmschneider
- Registered owner: Carl C. Ulmschneider
- Departed: RNT, RENTON, WA
- Destination: WA25, GRANITE FALLS, WA
- Airport: WA25, Green Valley, runway 3, 1,500 ×  ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 890 total, 812 in this make and model, 838 as pilot in command, 41 in the last 90 days, 21 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point -0 °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 19910930044139A](https://openairdocs.org/incident/19910930044139A), Sep 30, 1991: Gulstm AA1, Granite Falls, WA, Substantial damage. Bounced recovered by adding power then was unable to stop on remaining runway. Ran off end thru a fence.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.