Service difficulty report · Shield · Boeing 73776N

Difficulty date
April 24, 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
Part number
143A8126U31
Condition
Corroded
Location
Fwd 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

FWD CARGO COMP.R/H SIDE SHIELD BETWEEN STA 500 THRU 500AHAS CORROSION / [01] REMOVED CORROSION AT FWD CARGO AFT SHIELD BETW. STA 500 THRU 500A R/H SIDE PEER B737-700 SRM 51-10-02-0G-0 (WORKED BY HUMBERTO MEDINA 26340);[02] VERIFIED STEP 1.;[03] PERFORMED UT THICKNESS INSP ON REWORKED AREA IAW B737 NDT P4 51-00-00 PROC.3 ; MIN THK. NOTED 0.016'<BR>TOOL USED : OLYMPUS 27MG B/C 172139 04/23;[04] AFTER REWORKED AREA AT FWD CARGO COMP. R/H SIDE STR 26R BETW. STA 500 THRU 500A FOUND OUT LIMITS PER B737-700 SRM 53-00-53-1A-2.ORIG.MAT=.032' MAT.REMOVED=.016';MAT.REMAINING=.016';[05] VERIFIED STEP 4.;[06] REPLACED FWD CARGO COMP. R/H SHIELD FROM STA 500 TO 500A PER SRM 51-40-02-0G-0. THIS SHIELD WILL BE INSTALLED ON FWD CARGO MOC TASK CARD #TTG8Q004E4M4;[07] VERIFIED STEP #6.

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