Service difficulty report · Shield · Boeing 7378H4

Difficulty date
September 15, 2023
Submitted
October 16, 2023
Operation
Air carrier
Aircraft
N8555Z
Make and model
Boeing 7378H4
Aircraft serial
63600
Aircraft time
19,194 hours, 9,554 cycles
Part
Shield
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 AND BILGE AREA RH Z-CHANNEL WITH CORROSION AREAS BETWEEN STA 787 THRU STA 767. AFT CARGO COMPARTMENT FLOOR STRUCTURE AND BILGE AREA RH FWD SHIELD WITH CORROSION AREAS BETWEEN STA 787 THRU STA 767.<[01] REMOVED CORROSION; PERFORMED UT THICKNESS INSPECTION; CHECKED LIMITS OF AREA FOUND OUT OF LIMITS ON AFT CARGO FWD SHIELD; RECEIVED NEW AFT CARGO FWD SHIELD; LOCATED AND DRILLED HOLES; TREATED AND PRIMED AND INSTALLED NEW AFT CARGO FWD SHIELD FROM STA 787 TO STA 767; PER SRM 51-10-02-0G-0; PER SRM 53-60-15-1A-1; PER SRM 51-40-05-0G-0; PER AMM 51-21-41-370-803; AMM 51-21-72-370-804; AND PER SRM 51-40-02-0G-0.;[02] VERIFIED STEP 1.

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