Service difficulty report · Flap System · Cessna 172N

Difficulty date
February 8, 2021
Submitted
February 25, 2021
Operation
General aviation
Aircraft
N3126E
Make and model
Cessna 172N
Aircraft serial
17271446
Part
Flap System
Part number
0523920
Condition
Binding
Location
Right
Stage of operation
LD
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

AT SOME POINT IN FLIGHT THE PILOT DEPLOYED THE FLAPS AT WHICH POINT THE THE RIGHT FLAP BOUND UP. WHEN THE FLAP BOUND UP, IT APPEARS THE MOTOR KEPT GOING FORCING THE FLAP TO BEND AND TWIST. THE OUTBOARD AFT FLAP ROLLER BEARING IS PARTIALLY CRUSHED AND THE INBOARD PORTION OF THE FLAP WAS WEDGED INTO THE WING ROOT. THE FLAP BRACKETS ARE WORN TO LIMIT SAND ARE BEING REPLACED. ALL THE FOUR FLAP ROLLERS ARE BEING REPLACED DUE TO WEAR AND BINDING. THE RIGHT FLAP BELL CRANK AND FLAP CABLES ARE ALSO BEING REPLACED OUT OF AN ABUNDANCE OF CAUTION. PICTURES WILL SUBMITTED. DUE TO A LACK OF LOGBOOKS WE DON'T YET KNOW THE TOTAL TIME AND WILL SUBMIT AN UPDATED WHEN AVAILABLE BUT TACH TIME IS 5914.7.

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