# NTSB ANC84LA055: Champion 7GCBC, N7527F, Bettles, AK, April 11, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 11, 1984, 11:42 local (15:42 UTC)
- Place: Bettles, AK
- Coordinates: 67.239028, -152.270431 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=67.2390&lon=-152.2704&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (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): 4281
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC84LA055
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4281/pdf
- Page: https://openairdocs.org/ntsb/ANC84LA055

## 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
  - airport facilities,runway/landing area condition - snow covered (contributing factor)
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command
- Main gear collapsed, landing - roll
  - landing gear,main gear attachment - overload

## Analysis

THE ACFT GROUNDLOOPED DURING LANDING. THE PLT SAID HE LOST CONTROL OF THE ACFT. DURING THE SWERVE ONE OF THE GEAR LEGS FAILED AND THE ACFT SKIDDED ON THE FUSELAGE.

## Aircraft

- Registration: [N7527F](https://openairdocs.org/aircraft/N7527F), registered now, S/N 208-70, built 1969 (OpenAirDocs)
- Reported make and model: CHAMPION 7GCBC
- Registry model: [Champion 7GCBC](https://openairdocs.org/model/champion-7gcbc) (registry code 21101PK) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 208-70
- Airframe hours: 1000
- Engines: LYCOMING O-320-A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Douglas Dodge
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 19, 1983, 150 hours before
- Departed: FAI, FAIRBANKS, AK
- Destination: BTT, BETTLES, AK
- Airport: BTT, Bettles, runway 1, 5,200 × 150 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; commercial; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 2,515 total, 600 in this make and model, 2,405 as pilot in command, 20 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 7 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 14 °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 19840411009309A](https://openairdocs.org/incident/19840411009309A), Apr 11, 1984: Bbavia 7GCBC, Bethel, AK, Substantial damage. The ski equipped aircraft ground looped on landing. Directional control was not maintained.

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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