# NTSB SEA85LA092: Grumman AA-1B, N9861L, Hampton, OR, April 13, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 13, 1985, 13:00 local (21:00 UTC)
- Place: Hampton, OR
- Coordinates: 44.260337, -121.219703 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.2603&lon=-121.2197&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: Approved by Office Director
- NTSB case key (mKey): 40142
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA092
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40142/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA092

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - airport facilities,runway/landing area condition - inadequate (cause)
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - lack of total experience, pilot in command (contributing factor)
  - performance data - not understood, pilot in command (cause)
  - lift-off - premature, pilot in command (cause)
  - stall - not corrected, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE STUDENT PLT MADE A PRECAUTIONARY LANDING DUE TO BEING LOST AND LOW ON FUEL. THE AIRSTRIPS SURFACE WAS 1000 FT OF DIRT AND SAND WITH A FENCE AT THE DEPARTURE END. TAKEOFF DATA BASED ON GROSS WEIGHT, ZERO WIND, 4000 FT ELEVATION AT 80 DEGREES, ON A HARD SURFACES RWY WOULD REQUIRE AT LEAST 1129 FT FOR TAKEOFF. THE ACFT WAS LIFTED OFF PREMATURELY AND A DEPARTURE STALL OCCURED WITH THE ACFT STRIKING THE FENCE AND THEN ROLLING A SHORT DISRENCE INTO SAGEBRUSH BEFORE COMING TO A REST.

## Aircraft

- Registration: [N9861L](https://openairdocs.org/deregistered/N9861L-2006-12-14), registration cancelled 2006-12-14, S/N AA1B-0461, built 1974 (OpenAirDocs)
- Reported make and model: GRUMMAN AA-1B
- Registry model: [Grumman American Avn. AA-1B](https://openairdocs.org/model/grumman-american-avn-aa-1b) (registry code 3960103) (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: AA1B-0461
- Airframe hours: 2966
- Engines: LYCOMING O-235-52C 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Bertea Aviation
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 18, 1985, 95 hours before
- Departed: CVO, CORVALLIS, OR
- Destination: RDM, REDMOND, OR
- Flight plan: VFR
- Airport: Hampton, runway 27, 1,000 ×  ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; student; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 32 total, 32 in this make and model, 15 as pilot in command, 12 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 81 °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 19850413014179A](https://openairdocs.org/incident/19850413014179A), Apr 13, 1985: Gulstm AA1B, Hampton, OR, Substantial damage. Student attempted takeoff on sand runway with high density altitude. Stalled into fence after early liftoff.

## Other investigations on N9861L (1)

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.

- [NTSB SEA05CA154](https://openairdocs.org/ntsb/SEA05CA154), Jul 28, 2005: Grumman American AA1B (N9861L), Camas, WA, substantial damage. Probable cause: The student pilot's failure to maintain aircraft control during landing roll. A contributing factor was the gusty cross-wind weather condition.

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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