Service difficulty report · Shield · Boeing 7377H4

Difficulty date
July 2, 2021
Submitted
July 19, 2021
Operation
Air carrier
Aircraft
N297WN
Make and model
Boeing 7377H4
Aircraft serial
32542
Aircraft time
46,041 hours, 27,557 cycles
Part
Shield
Condition
Corroded
Location
Aft Cargo
Stage of operation
IN
How discovered
V
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 FOUND AT AFT CARGO DOOR CUTOUT SHIELD JUST FWD AROUND FASTENERS ; / [01] REMOVED CORROSION AT AFT CARGO DOOR CUTOUT FWD SHIELD AS PER REF SRM 51-10-02-0G-0; [02] VERIFIED 1; [03] PERFORMED UT THICKNESS INSP ON AFT CARGO DOOR CUTOUT SHIELD REWORKED AREA IAW B737 NDT P4 51-00-00 PROC.3; MIN THK NOTED 0.038<BR>TOOL USED : OLYMPUS 27MG BC:172139; [04] MEASURES: ORIGINAL .050'; MATERIAL LOST .012'; MATERIAL REMAINING .038'. FOUND OUT OF LIMITS AS PER REF 53-60-15-1A-1; [05] VERIFIED 4; [06] LOCATED AND DRILL NEW SHIELD AT AFT CARGO COMP DOOR CUTOUT AS PER REF SRM 51-40-05-0G-0; [07] VERIFIED LOCATED AND DRILL NEW SHIELD AT AFT CARGO; [08] OK TO TREAT/PRIME; [09] APPLIED TREAT AND PRIMER AT NEW FASTENER HOLES AS PER REF B737-700 AMM 51-21-41-370-801 AND AMM 51-21-72-370-804; [10] VERIFIED APPLIED TREAT AND PRIMER AT NEW FASTENER HOLES; [11] REPLACED AFT CARGO DOOR CUTOUT SHIELD JUST FWD AS PER REF B737-700 SRM 51-40-05-0G-0. THE SHIELD WIL BE INSTALLED ON NON ROUTINE 1000/0006 - TTG8Q004EZNM; [12] THE SHIELD WIL BE INSTALLED ON NON ROUTINE TTG8Q005RB1V -1000/0058; [13] VERIFIED TRANSFER FOR INSTALLATION.

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