Service difficulty report · Spring · Cessna 208B

Difficulty date
October 20, 2004
Submitted
October 25, 2004
Operation
Air carrier
Aircraft
N540ME
Make and model
Cessna 208B
Aircraft serial
208B0540
Engine
Pwa PT6A114A
Part
Spring
Part number
26410143
Part serial
375879
Condition
Chafed
Location
Mlg
Part time
6,817 hours
Stage of operation
NR
How discovered
9
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

FLEXING OF MLG SPRING CAUSES CENTER SPRING TO CONTACT MLG COVER PN 2611103-10 WHICH IS LOCATED BENEATH THE CENTER SPRING. TWO RIVETS HAD WORN INTO THE CENTER SPRING LOWER SURFACE. THESE RIVETS ARE THE CENTER IB RIVETS THAT FASTEN A FAIRING AT EACH END OF THE COVER. SUGGEST ELIMINATING THE CENTER RIVET AND INSTALLING TWO RIVETS FURTHER OB AND OFF CENTER AT BOTH FAIRINGS. THE CENTER SPRING WAS ALSO CONTACTING SCREWS THAT SECURE A COVER THAT ACCESSES THE MLG DEICE PLUMBING. THESE SCREWS COULD BE .1250 INCH SHORTER. NO DAMAGE EXCEEDED .005 INCHES IN DEPTH. ALSO RECOMMEND VINYL CHAFE TAPE ON LOWER SURFACE OF CENTER SPRING.

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