Service difficulty report · Plate · Boeing 7378H4

Difficulty date
December 21, 2023
Submitted
January 26, 2024
Operation
Air carrier
Aircraft
N8559Q
Make and model
Boeing 7378H4
Aircraft serial
63584
Aircraft time
19,801 hours, 9,988 cycles
Part
Plate
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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

AFT CARGO COMPARTMENT FLOOR STRUCTURE HAS SURFACE CORROSION AT STA 727H-3' LBL 21.<[01] REMOVED CORROSION IAW SRM 51-10-02. MATERIAL REMOVED DEPTH IS 0.013. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-1.;[02] REMOVED CORROSION IAW SRM 51-10-02. MAT. REMOVED IS 0.010; FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2;[03] REMOVED CORROSION IAW SRM 51-10-02. MATERIAL REMOVED DEPTH IS 0.013. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2.;[04] REPAIRED L/H SIDE PLATE STA 727G + 10 TO STA 787+10 PER SRM 53-00-53-1A-2 AND SRM 53-00-53-2R-5. WORK ACCOMPLISHED ON NON ROUTINE TASK CARD # TTG8Q00QFQ3L LINE # 2286.;[05] C/W REPAIR WORK DOCUMENTED ON TTG8Q00QFQ3L RII

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