Service difficulty report · Mount · Boeing 7378H4

Difficulty date
August 2, 2024
Submitted
August 28, 2024
Operation
Air carrier
Aircraft
N8698B
Make and model
Boeing 7378H4
Aircraft serial
36977
Aircraft time
26,776 hours, 13,241 cycles
Part
Mount
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
9
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

THE AFT LAVATORY MOUNT STRUCTURE IS CORRODED AT STA 947 RBL 51<[01] REMOVED CORROSION PER SRM 51-10-02. DAMAGE REMOVAL FOUND TO BE OUT OF LIMITS PER SRM 53-70-51-1A-1.14] FABRICATED AND DRILLED REPLACEMENT T-CHORD; REPAIR ANGLES; REPAIR STRAPS; FILLERS; AND DRILLED UP NEW REPLACEMENT CLIPS; DEBURRED ALL REPAIR PARTS AND REPAIR AREA IAW SRM 53-70-51-2R-5 ALTERATIVE 1 AND M-24-153-02022 (TTG8Q00V7YUL) AND M-24-153-02031 (TTG8Q00V369S).;[15] STEPS 12 13 & 14 INSPECTED WORK ABOVE;[16] TREATED AND PRIMED REPAIR PARTS AND REPAIR AREA IAW SRM 53-70-51-2R-5 ALTERATIVE 1.;[17] INSPECTED WORK ABOVE STEP 16;[18] RII - OK TO INSTALL STA 947 UPPER T-CAP;[19] REPAIRED DAMAGED FLOOR BEAM UPPER FLANGE PER EA M-24-153-02022; EA M-24-153-02031; AND SRM 53-70-51-2R-5.;[20] INSPECTED AS REQUIRED. CORRECTIVE ACTION #19

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