Pilot Debrief

CESSNA 305 near Ellenville, NY — 2020-11-14

Final reportERA21LA044
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Date
2020-11-14
Location
Ellenville, NY, USA
Airport
N89
Aircraft
CESSNA 305
Registration
N5179G
Category
Airplane
Highest injury
None
Fatalities
0

Probable cause

The failure of the right brake master cylinder lock seal spring washer.

NTSB narrative

The pilot of the tailwheel-equipped airplane was performing touch-and-go landings. During the third landing, the pilot noticed that right wheel began to “drag.” During the next landing, the airplane veered to the right side of the runway. The tail of the airplane then lifted and the airplane nosed over. The fuselage, wings, and vertical stabilizer were substantially damaged. After exiting the airplane, the pilot attempted to rotate the right wheel assembly, and it would not rotate. After about an hour the wheel assembly freed up and was able to rotate. A postaccident examination of the brake system revealed that the brake master cylinder lock seal spring had broken into three pieces. Given this information, it is likely that the broken lock seal spring washer prevented the master cylinder from releasing pressure from the caliper. This malfunction resulted in the right brake caliper staying engaged after the pilot released the brakes.

NTSB coding

Evidence available

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

Docket documents6

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