# NTSB ANC83LA179: Cessna 180, N9125T, Talkeetna, AK, September 18, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 18, 1983, 11:00 local (19:00 UTC)
- Place: Talkeetna, AK
- Coordinates: 62.450626, -149.789642 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=62.4506&lon=-149.7896&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4175
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC83LA179
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4175/pdf
- Page: https://openairdocs.org/ntsb/ANC83LA179

## Sequence of events

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

- On ground/water encounter with terrain/water, takeoff - roll/run
  - weather condition - tailwind (contributing factor)
  - wrong runway - selected, pilot in command (cause)
  - total, pilot in command (cause)
  - terrain condition - sand bar (contributing factor)
  - judgment - poor, pilot in command (cause)
  - lack of familiarity with geographic area, pilot in command (cause)
  - terrain condition - high terrain (contributing factor)
  - aborted takeoff - delayed, pilot in command (cause)
  - performance data - inaccurate, pilot in command (cause)
- Main gear collapsed, takeoff - roll/run
  - landing gear,nose gear assembly - overload (contributing factor)

## Analysis

THE ACFT COLLIDED WITH A SANDBAR AND COLLAPSED THE LEFT MAIN LANDING GEAR DURING AN ABORTED TAKEOFF. THE PILOT STATED THAT HE WAS ATTEMPTING A TAKEOFF FROM A SHORT AIRSTRIP AT AN ELEVATION OF 3000 FT MSL WHEN HE ENCOUNTERED A TAILWIND AT ROTATION & THE ACFT SETTLED BACK TO THE GROUND AND COLLIDED WITH A SANDBAR. THE ACFT WAS LOADED WITH 2 PASSENGERS A LARGE DOG (EST. 130 LBS) BAGGAGE AND 50 GALLONS OF FUEL. THE PILOT SAID THE ACFT WAS AT OR BELOW MAX GROSS WEIGHT. THE RWY IS 1000 FT LONG SURROUNDED BY TREES HIGH AND A VERTICAL  DROP.

## Aircraft

- Registration: [N9125T](https://openairdocs.org/deregistered/N9125T-2013-06-27), registration cancelled 2013-06-27, S/N 50625, built 1959 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180B](https://openairdocs.org/model/cessna-180b) (registry code 2072606) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: CONTINENTAL O-470-K 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: David D. Treadway
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, November 11, 1982, 35 hours before
- Destination: Z41, ANCHORAGE, AK
- Airport: TKA, Talkeetna

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 36 total, 36 in this make and model, 35 as pilot in command, 36 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 10 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 39 °F
- Altimeter: 30.00 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 19830918050409A](https://openairdocs.org/incident/19830918050409A), Sep 18, 1983: Cessna 180C, Talkeetna, AK, Substantial damage. Settled after downwind liftoff from a short gravel strip. Struck a sand bar on touchdown.

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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