SDR UIEA2020101302246

Service difficulty report · Rib · Boeing 74745E

Difficulty date: October 9, 2020
Submitted: October 13, 2020
Operation: Air carrier
Aircraft: N473MC
Make and model: Boeing 74745E
Aircraft serial: 27174
Aircraft time: 106,066 hours, 18,959 cycles
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Corroded
Location: Lt 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

CORROSION: CHORD, LOWER FACE OF LT WING OUTBOARD LEADING EDGE CAVITY RIB LOWER T CHORD, OLES 1221.05. REMOVED DAMAGED PART, IAW SRM 51-40-02 REV 109. FABRICATE NEW CLIP, IAW EI NO T2020A57M-2613. INSTALL FAB NEW CLIP, IAW BOEING DWG NR 65B07829 SH 3 REV C AND SRM 51-40-02-0G-0 REV 109. JOB COMPLETED AND CONDITION CHECK NORMAL.

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