Pilot Debrief

CESSNA 150F near Snohomish, WA — 2012-09-17

Final reportWPR12LA430
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Date
2012-09-17
Location
Snohomish, WA, USA
Airport
S43
Aircraft
CESSNA 150F
Registration
N8130F
Category
Airplane
Highest injury
Minor
Fatalities
0
Phase of flight
Landing

Probable cause

The failure of the right wheel brake hydraulic line during the landing roll, which rendered the brake system inoperative.

NTSB narrative

The pilot reported that, when he applied wheel brakes during the landing roll, the airplane veered left. The airplane subsequently exited the runway and collided with a fence, which resulted in substantial damage to the right wing. Postaccident examination of the airplane's right brake assembly revealed two small cracks in the rigid portion of the hydraulic brake line. The cracks were seeping red fluid consistent with hydraulic fluid. The breach in the hydraulic brake line and loss of fluid likely resulted in a loss of hydraulic pressure, which rendered the brake system inoperative.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Inspection of brake system prior to flight could have identified the hydraulic line issue.

NTSB coding

Evidence available

  • 1 docket document
View NTSB final reportView NTSB docket

Docket documents1

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