# NTSB CHI84LA089: Grumman AA-1A, N9248L, Hawley, MN, January 18, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 18, 1984, 11:45 local (17:45 UTC)
- Place: Hawley, MN
- Coordinates: 46.869445, -96.309005 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.8694&lon=-96.3090&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12530
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA089
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12530/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA089

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - terrain condition - snowbank (contributing factor)
  - proper alignment - not maintained, pilot in command (cause)
  - lack of total experience, pilot in command (cause)

## Analysis

THE ACFT RAN INTO A SNOWBANK DURING THE LANDING ROLL AND FLIPPED OVER. THE PLT STATED THAT THE RIGHT BRAKE PEDAL CYLINDER FROZE BUT THIS COULD NOT BE CONFIRMED DURING THE INVESTIGATION.

## Aircraft

- Registration: [N9248L](https://openairdocs.org/deregistered/N9248L-2013-05-22), registration cancelled 2013-05-22, S/N AA1A-0148, built 1971 (OpenAirDocs)
- Reported make and model: GRUMMAN AA-1A
- Registry model: [American AA-1A](https://openairdocs.org/model/american-aa-1a) (registry code 0630710) (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: 0148
- Airframe hours: 1282
- Engines: LYCOMING O-235 C2C 108 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Robert Kartes
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 11, 1983, 165 hours before
- Departed: 04Y, HAWLEY, MN
- Airport: 04Y, Hawley, runway 33, 3,406 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; student; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 20 total, 15 in this make and model, 5 as pilot in command, 10 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 8 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 18 °F
- Altimeter: 29.00 inHg

## 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 19840118000949A](https://openairdocs.org/incident/19840118000949A), Jan 18, 1984: Gulstm AA1A, Hawley, MN, Substantial damage. Student pilot lost directional control during landing and aircraft collided with snowbank.

## Other investigations on N9248L (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 MKC79FTK03](https://openairdocs.org/ntsb/MKC79FTK03-133459), Oct 21, 1979: Amer Avco AA-1A (N9248L), Redfield, SD, substantial damage

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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