Service difficulty report · Shield · Boeing 73776N

Difficulty date
April 19, 2022
Submitted
May 10, 2022
Operation
Air carrier
Aircraft
N7729A
Make and model
Boeing 73776N
Aircraft serial
32675
Aircraft time
50,989 hours, 25,541 cycles
Part
Shield
Condition
Corroded
Location
Aft Cargo Bay
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 FWD WEB SHIELD FROM STA 767 TO STA 794 HAS SPOTS OF CORROSION. / [01] REMOVED CORROSION AT AFT CARGO COMP. FWD WEB SHIELD FROM STA 767 TO STA 794 PER B737-700 SRM 51-10-02-0G-0 (WORKED BY HUMBERTO MEDINA);[02] VERIFIED STEP 1.;[03] PERFORMED UT THICKNESS INSP ON REWORKED AREA IAW B737 NDT P4 51-00-00 PROC.3 ; MIN THK. NOTED 0.031'<BR>TOOL USED : OLYMPUS 27MG B/C 172139 04/23;[04] AFTER REWORKED AREA AT AFT CARGO COMP. R/H SIDE STR 26R BETW. STA 767 THRU 794 FOUND OUT LIMITS PER B737-700 SRM 53-00-53-1A-2.ORIG.MAT=.050' MAT.REMOVED=.019';MAT.REMAINING=.031';[05] VERIFIED STEP 4.;[06] REPLACED AFT CARGO COMP. FWD WEB SHIELD FROM STA 767 TO 794 PER SRM 51-40-02-0G-0. THIS WEB SHIELD WILL BE INSTALLED ON AFT CARGO MOC TASK CARD #TTG8Q004DGR1;[07] VERIFIED STEP #6.

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