Service difficulty report · Piston · Cessna 172P

Difficulty date
April 23, 2010
Submitted
May 3, 2010
Operation
General aviation
Aircraft
N172RQ
Make and model
Cessna 172P
Aircraft serial
17276324
Aircraft time
13,500 hours
Engine
Lyc O320*
Part
Piston
Part number
98820125
Condition
Broken
Location
Master Cylinder
Part time
13,500 hours
Component
Master Cylinder · Cessna
Component part number
98820101
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(Z94E) THE BRAKE PISTON ON THE LT BRAKE MASTER CYLINDER BROKE AT THE THREADED END WHERE IT ATTACHES TO THE CLEVIS. WHEN THE BRAKES FAILED THE PILOT VEERED TO THE RT AND STRUCK A RUNWAY TAXI LIGHT.

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