Service difficulty report · Roll Pin · Cessna 172N

Difficulty date
October 8, 2010
Submitted
January 4, 2011
Operation
Air carrier
Make and model
Cessna 172N
Aircraft time
2,563 hours
Engine
Lyc O360A4M
Propeller
Mcauly 1A200DFA
Part
Roll Pin
Part number
74322
Condition
Cracked
Location
Float
Component
Float
Component part number
BF2550A
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING ANNUAL INSP, IT WAS NOTED THAT THE TIP OF A LANDING GEAR DOWN-STOP ROLL PIN HAD BEEN SHEARED OFF. UPON CLOSER INSP OF ALL REMAINING ROLL PINS IN THE UP AND DOWN STOP LATCH BLOCKS, IT WAS NOTED THAT ALL WERE CRACKED. REMOVAL OF THE PINS REVEALED MOST TO BE CRACKED ALONG THE ENTIRE LENGTH, AND IN SOME CASES, BROKEN IN PIECES.

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