# NTSB ANC93LA097: Cessna 180, N9968X, Anchorage, AK, June 20, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 19, 1993, 20:50 local (Jun 20, 1993, 00:50 UTC)
- Place: Anchorage, AK
- Coordinates: 61.160072, -149.989364 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.1601&lon=-149.9894&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 15, 1994
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 2364
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC93LA097
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/2364/pdf
- Page: https://openairdocs.org/ntsb/ANC93LA097

## Probable cause

SEPARATION OF THE RIGHT MAIN LANDING GEAR WHEEL.

## Sequence of events

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

- Main gear collapsed, landing - flare/touchdown
  - landing gear,wheel - separation (cause)
- Loss of control - on ground/water, landing - roll

## Analysis

ACCORDING TO THE PILOT, THE AIRPLANE STARTED BOUNCING AFTER TOUCHDOWN, AND HE BEGAN TO APPLY RIGHT BRAKE. ABOUT 150-200 FT AFTER TOUCHDOWN THE RIGHT WHEEL LEFT THE GEAR LEG, AND ON THE NEXT BOUNCE THE GEAR LEG FOLDED UNDER THE AIRPLANE. THE AIRPLANE WAS EQUIPPED WITH GAR AERO 6-INCH TO 10-INCH WHEEL ADAPTERS.

## Factual narrative

On June 19, 1993, at 2150 Alaska daylight time, a wheel equipped Cessna 180 airplane, N9968X, registered to and operated by the Pilot-in-Command bounced during landing and the right main landing wheel departed the airplane.  A subsequent bounce folded the right main gear beneath the airplane and the airplane ground looped.  The accident occurred during the hours of daylight at the Lake Hood Airstrip, Anchorage, Alaska.  The personal flight, operating under 14 CFR Part 91, last departed Lake Hood Airstrip for a local flight.  No flight plan was filed and visual meteorological conditions prevailed.  The airplane was substantially damaged and the Pilot-in-Command, the sole occupant, was not injured.

According to the Pilot-in-Command, after touchdown the right side of the airplane started bouncing and he began to apply right brake.  On the NTSB Form 6120.1/2 the Pilot-in-Command states "About 150-200 feet after touchdown the right wheel left the gear leg and on the next bounce the gear leg folded under the airplane."

According to the Pilot-in-Command, the airplane was equipped with GAR AERO 6 inch to 10 inch wheel adapters.

## Aircraft

- Registration: [N9968X](https://openairdocs.org/aircraft/N9968X), registered now, S/N 185-0168, built 1961 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 185](https://openairdocs.org/model/cessna-185) (registry code 2072802) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 185-0168
- Airframe hours: 5922
- Engines: CONTINENTAL IO-470 260 horsepower reciprocating
- Damage: Substantial damage
- Fire: Unknown
- Flight: Personal, Part 91
- Operator: Eagley, Ronald A.
- Registered owner: Eagley, Ronald A.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 20, 1993, 30 hours before
- Departed: Z41
- Airport: Z41, Lake Hood Airstrip, runway 31, 2,200 × 80 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 270 total, 30 in this make and model, 45 in the last 90 days, 45 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 3 knots
- Visibility: 90 statute miles
- Lowest ceiling: none
- Temperature: 61 °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 19930619023209A](https://openairdocs.org/incident/19930619023209A), Jun 19, 1993: Cessna 180, Anchorage, AK, Substantial damage. Right wheel separated on bouncing landing then gear leg collapsed. Aircraft ground looped.

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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