Pilot Debrief

CESSNA 190 near San Luis Obispo, CA — 2024-05-17

Final reportANC24LA036
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Date
2024-05-17
Location
San Luis Obispo, CA, USA
Airport
SBP
Aircraft
CESSNA 190
Registration
N1500D
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Landing

Probable cause

The pilot’s failure to maintain directional control during the landing roll, which resulted in a failure of the right main landing gear and subsequent ground loop.

NTSB narrative

The pilot reported that, during the landing roll, the airplane’s right main gear began to track under the fuselage. As the airplane slowed, he was unable to keep the aircraft under directional control. The airplane then ground-looped, substantially damaging the right wing. Metallurgical examination revealed the attachment bolts for the right main landing gear failed in downward and slightly aft bending. The two lower bolts fractured in overstress. The upper bolt was bent, and the nut was stripped. A side load on the right main landing gear wheel would have placed the axle in downward bending and drag forces during landing and roll out would have resulted in an aft loading component. The damage signatures observed were consistent with separation of the axle from the landing gear spring as a result of a ground loop.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Pilot could have aborted landing upon noticing gear issue.

NTSB coding

Evidence available

  • Photos
  • 3 docket documents
View NTSB final reportView NTSB docket

Docket documents3

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