SDR FDEA2019100792445

Service difficulty report · Rib · Boeing 75723A

Difficulty date: September 9, 2019
Submitted: October 7, 2019
Operation: Air carrier
Aircraft: N939FD
Make and model: Boeing 75723A
Aircraft serial: 24528
Aircraft time: 63,696 hours, 23,611 cycles
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Corroded
Location: Rt Wing Le
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

RIGHT AILERON ATTACHMENT RIB AT WING STA 810 WAS CORRODED AT BONDING LEAD ATTACHMENT. CORROSION REMOVED IAW SRM 51-10-02 AND EVALUATED IAW SRM 57-51-09-1A FIG 101 SHEET 5 ,NOTE K ,DETAIL IV AND VI AND FOUND TO BE OUTSIDE SRM LIMITS ,ORIGINAL THICKNESS = 0.118" REMAINING THICKNESS = .041". RPAIRED IAW EA # F-5740-T0349698 P1.

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