Service difficulty report · Plate · Boeing 7378H4

Difficulty date
July 1, 2024
Submitted
July 29, 2024
Operation
Air carrier
Aircraft
N8697C
Make and model
Boeing 7378H4
Aircraft serial
36728
Aircraft time
26,284 hours, 12,972 cycles
Part
Plate
Condition
Corroded
Location
Zone 100
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

CORROSION ON AFT CARGO COMPARTMENT LH SIDE PLATE BETWEEN STA 727I-727J (MARKED)<[01] REMOVED CORROSION FROM AFT CARGO LEFT SIDE PLATE FROM STA 727I-727J ORIGINAL MATERIAL THICKNESS IS 0.040?; MAX MATERIAL LOSS IS 0.005; MAX ALLOWED IS 0.004 ?; FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2;[02] TOOL T010008 S/N 503011WAS NOT USED;[03] CUT OUT DAMAGED SECTION OF THE LH SIDE PLATE FROM STA 727F+10 TO STA 787+10 FOR REPAIR PER SRM 53-00-53-1A-2;[04] LOCATED AND DRILLED NEW LH SIDE PLATE PER SRM 51-40-02;[05] COUNTERSUNK LH SIDE PLATE PER SRM 51-40-08.;[06] LOCATED AND DRILLED NEW LH SIDE PLATE FROM STA.727 - STA.847 PER SRM 51-40-02.;[07] RII. VERIFIED. LOCATED AND DRILLED NEW LH SIDE PLATE FROM STA.727 - STA.847 PER SRM 51-40-02. SIGN OFF FOR CORRECTIVE ACTION #6 ONLY.;[08] RII. VERIFIED COUNTERSUNK LH SIDE PLATE PER SRM 51-40-08. NEW LH SIDE PLATE FROM STA.727 - STA.847. SIGN OFF FOR CORRECTIVE ACTION #5 ONLY.;[09] RII. OK TO INSTALL NEW LH SIDE PLATE FROM STA 727 - STA 847.;[10] INSTALLED NEW LH SIDE PLATE FROM STA 727-847 PER SRM 51-40-02;[11] CW

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