Service difficulty report · Shield · Boeing 7377H4

Difficulty date
June 12, 2022
Submitted
July 14, 2022
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
59,468 hours, 35,169 cycles
Part
Shield
Condition
Corroded
Location
Fuselage
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 AFT DOOR CUTOUT SHIELD RBL 24.75; WL 156.5; BS 500+2.5; 6.5; 10.5; 14.5; 18.5 / [01] CORROSION ON AFT DOOR CUTOUT SHIELD BS 500 TO BS 500A; FOUND TO BE OUT OF LIMITS DUE TO NO ALLOWABLE DAMAGE ON SRM PARTS WILL BE REPAIRED BY REPLACEMENT; IAW SRM 51-10-02-0G-0 PARA 9.;[02] VERIFIED APLICABILITY NO ALLOWABLE DAMAGE FOUND FOR THIS PART IAW SRM 51-10-02-0G-0 PARA 9.;[03] VERIFIED CORRECTIVE ACTION ITEM 1. DOOR CUTOUT SHIELD IS OUT OF LIMITS DUE TO NO ALLOWABLE DAMAGE.<BR>CONFIRMED APPLICABILITY OF SRM 51-10-02-0G-0 PARA 9 FOR THIS REPAIR.;[04] RECEIVED SHIELD ASSEMBLY P/N 143A8126-31; LOT.1492239-1. LOCATED AND DRILLED SHIELD ASSEMBLY BTW. BS492.4A - BS500A WL.156.5; RBL.24.75; IAW SRM51-40-05-0G-0 AND DWG#143A0080.;[05] VERIFIED CORRECTIVE ACTION #4 AND MEASUREMENT TABLE;[06] THE AFT SHIELD INSTALLATION WILL BE ACCOMPLISHED WITH THE CUSTOMER CARD # TTG8Q004EXYE. ALL MAINTENANCE ACTIONS ARE COMPLETE REQUEST FINAL BUYOFF.;[07] USAGE PART P/N 143A8126-31;LOT. 142239-1.;[08] UPDATED PARTS USAGE;[09] VERIFIED CORRECTIVE ACTION STEPS 6 AND 7. TASK CARD COMPLETE.

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