# Accident 19980912035209A: Cessna STC180, Lakeshore, MD, September 12, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 12, 1998, 16:30 local time
- Place: Lakeshore, MD
- Airport: Mountain Road Airport
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 39.1106° N, 76.5505° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=39.1106&lon=-76.5505&mi=10
- Aircraft: N6503A, registered now (https://openairdocs.org/aircraft/N6503A) (OpenAirDocs)
- Registry model: Cessna 180 (registry code 2072602, https://openairdocs.org/model/cessna-180) (OpenAirDocs)
- Registry engine: Continental O-470 series (registry code 17026, https://openairdocs.org/engine/continental-o-470-series) (OpenAirDocs)
- Reported make and model: CESSNA STC180
- Reported engine: CONT O470K
- People aboard: 3
- Fatal injuries: 0
- Pilot flight hours: 11,729 total, 214 in this make and model, 190 in the last 90 days
- NTSB investigation: [NTSB NYC98LA186](https://openairdocs.org/ntsb/NYC98LA186) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980912035209A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

DURING ROLL-OUT, THE RIGHT NOSE GEAR FAILED, CAUSING THE NOSEGEAR STRUT TO DIG INTO THE SOFT DIRT. THE AIRCRAFT PIVOTED AROUND THE BROKEN STRUT, WHICH INDUCED A SIDE LOAD ON THE LEFT FLOAT ATTACH STRUTS WHICH THEN FAILED, RESULTING IN THE LEFT FLOAT FOLDING UNDER THE AIRCRAFT. (ABOVE FROM -23) FM03               (.4) THE AIRPLANE ENTERED A LEFT DOWNWIND FOR THE WEST RUNWAY. ON FINAL, THE PILOT LOWERED THE LANDING GEAR, SELECTED FULL FLAPS, AND TOUCHED-DOWN SMOOTHLY APPROXIMATELY 300-400 FEET DOWN THE 1,800 FOOT GRASS STRIP. WHILE ROLLING OUT, AND APPROXIMATELY 30 MPH, THE AIRPLANE YAWED RIGHT ABOUT 170 DEGREES CAUSING THE LEFT FLOAT TO COLLAPSE AND FOLD UNDER THE AIRPLANE. THE RIGHT FLOAT'S NOSE WHEEL WAS FOUND IN AN AREA OF LOOSE DIRT ABOUT40 FEET PRIOR TO THE AIRPLANE'S FINAL RESTING. EXAMINATION OF THE RIGHT FLOAT'S NOSE WHEEL REVEALED MARKS CONSISTENT WITH A PREEXISTING FATIGUE CRACK.

## The NTSB's investigation of this event (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 NYC98LA186](https://openairdocs.org/ntsb/NYC98LA186), Sep 12, 1998: Cessna 180 (N6503A), Lakeshore, MD, substantial damage. Probable cause: Failures of the right float's nose wheel do to a preexisting fatigue crack.

## Other reports on N6503A (1)

Matched to the same aircraft by N-number and date.

- [Accident 19910621023399A](https://openairdocs.org/incident/19910621023399A), Jun 21, 1991: Cessna 180 (N6503A), Grand Rapids, MN, Substantial damage. Bounced on water landing. Wind gust tipped aircraft. A wing hit water and floatplane flipped over.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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