Service difficulty report · Shield · Boeing 7377H4

Difficulty date
June 21, 2022
Submitted
July 27, 2022
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
59,624 hours, 35,506 cycles
Part
Shield
Part number
143A812631
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

CORROSION ON FWD CARGO BAY AFT DOOR SHIELD AT RBL 24 BS 500+2; BS 500+6; BS 500+10; BS 500+14. / [01] REMOVED CORROSION ON FWD CARGO BAY AFT SHIELD AT RBL24 BS492.4 TO BS500A;FOUND PART TO HAVE NO ALLOWABLE DAMAGE OR SRM LIMITS AND SO PART IS REPAIRABLE BY REPLACEMENT;PER SRM 51-10-02 STEP 9.;[02] MEASURES: L=.9;W=.7;D=.011'.TOOL USED:MICROMETER ATS1671;S/N65093024;DUE:10/2022.;[03] VERIFIED CORRECTIVE ACTIONS #1 AND #2;[04] LOCATED AND DRILLED NEW AFT SHIELD ON FWD CARGO BAY AT RBL 24 BS 492.4 TO BS500A WITH P/N 143A8126-31;LOT#1492239-1 IAW SRM 51-40-05;DWG#143A0080.ALL MAINTENANCE ACTION ARE COMPLETED REQUIRE FINAL BUY OFF.;[05] UPDATED PARTS USAGE;[06] VERIFIED CORRECTIVE ACTION STEPS 4 AND 5. TASK CARD COMPLETE.;[07] VERIFIED MEASUREMENT TABLE COMPLETE.

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