SDR UIEA2020101302245

Service difficulty report · Gusset · 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): 5320 · Fuselage Miscellaneous Structure
Part: Gusset
Part number: 69B122171
Part serial: NSN
Condition: Corroded
Location: Rt Mlg Ww
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: GUSSET OF RT WING LANDING GEAR WHEEL WELL FWD UNDERWING VAPOR BARRIER AT STA 1240.5, RBL 17.75. REMOVE DAMAGE PART, IAW SRM 51-40-02 REV 109. FAB PART, IAW EI NO T2020A57M-2571 REV 0. INSTALL NEW FAB PART, IAW SRM 51-40-02 REV 109 AND DWG NR 65B10534 SHEET 13 REV D. JOB COMPLETED AND CONDITION CHECK NORMAL.

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