Service difficulty report · Shield · Boeing 7377H4

Difficulty date
April 30, 2022
Submitted
June 9, 2022
Operation
Air carrier
Aircraft
N477WN
Make and model
Boeing 7377H4
Aircraft serial
33988
Aircraft time
60,414 hours, 35,826 cycles
Part
Shield
Condition
Corroded
Location
Fwd Cargo
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 FCB AFT SHIELD. RBL21; WL156; BS500-4; BS500+2; BS500+6; BS500+14; BS500+18.5. / [01] NO ALLOWABLE DAMAGE LIMITS IN SRM REPAIR BY REPLACEMENT IAW SRM 51-10-02-0G-0;[02] VERIFIED APPLICABILITY FCB AFT SHIELD IAW SRM 51-10-02 PARAGRAPH#9.;[03] RECEIVED NEW PART 143A8126-31 ATSMRO FCB AFT SHIELD;RBL 21 WL 156 BS 480+12 TO BS 500A;LOT#1484884-1;PO#860330/1;LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 143A8126- REV:A.;[04] VERIFIED CORRECTIVE ACTION 2 AND 3.;[05] VERIFIED MEASUREMENT TABLE.;[06] UPDATED PART REQUIREMENT.;[07] VERIFIED TASK COMPLETE

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