# NTSB ANC85FA125: Cessna 152, N93180, Big Lake, AK, July 11, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: July 11, 1985, 14:00 local (22:00 UTC)
- Place: Big Lake, AK
- Location: 61.5450° N, 149.8180° W: Placed by OpenAirDocs: center of Big Lake, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.5450&lon=-149.8180&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 office: Alaska Regional Office
- NTSB case key (mKey): 4420
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC85FA125
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4420/pdf
- Page: https://openairdocs.org/ntsb/ANC85FA125

## 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
  - procedures/directives - not followed, pilot in command (contributing factor)
  - lack of total experience, pilot in command (contributing factor)
  - inadequate surveillance of operation, company/operator mgmt (contributing factor)
  - airport facilities,runway/landing area condition - loose gravel/sandy (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - uncontrolled
- Nose gear collapsed, landing
  - landing gear,nose gear - overload

## Analysis

THE GLIDER PLT WAS IN TRAINING FOR A SINGLE ENG LAND RATING & WAS INDORSED FOR SOLO FLT. DURING HER TRAINING, SHE & HER INSTRUCTOR PLT HAD LANDED AT THE BIG LAKE ARPT. SHE THOUGHT THAT THAT WAS HER APPROVAL TO LAND THERE SOLO. HOWEVER, THERE WERE SANDY SOFT SPOTS ON THE GRAVEL RWY & THE OPERATOR STATED THAT THE STUDENT WAS NOT CLEARED FOR SOLO LANDINGS AT THAT ARPT. DURING THE LANDING, THE STUDENT LOST DIRECTIONAL CONTROL OF THE ACFT & IT VEERED OFF THE RWY. SUBSEQUENTLY, THE NOSE GEAR COLLAPSED & THE LEFT WING HIT THE GROUND.

## Aircraft

- Registration: [N93180](https://openairdocs.org/deregistered/N93180-2005-02-04), registration cancelled 2005-02-04, S/N 15285432, built 1981 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (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: 1528543
- Airframe hours: 1141
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Dianne Tarrant
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, June 2, 1985, 11 hours before
- Departed: MRI, ANCHORAGE, AK
- Airport: BGO, Big Lake, runway 24, 2,800 × 70 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; private; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 79 total, 18 in this make and model, 25 as pilot in command, 16 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 290° at 5 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 46 °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 19850711031149A](https://openairdocs.org/incident/19850711031149A), Jul 11, 1985: Cessna 152, Big Lake, AK, Substantial damage. Solo student made landing at unauthorized airport. Lost directional control and veered off runway. Gear collapsed.

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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