Service difficulty report · Shield · Boeing 7377H4

Difficulty date
July 1, 2021
Submitted
July 26, 2021
Operation
Air carrier
Aircraft
N913WN
Make and model
Boeing 7377H4
Aircraft serial
29840
Aircraft time
43,304 hours, 26,170 cycles
Part
Shield
Condition
Corroded
Location
Bs 433
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 FCB FORWARD SHIELD BS 433; RBL 25; WL 157 (MARKED). ; / [01] NOT HAVE ENTRIES FOR ALLOWABLE DAMAGE IN SRM. THE PART MUST BE REPAIRED BY REPLACEMENT PER SRM. 51-10-02 ITEM 9.C.; [02] VERIFIED PART WILL BE REPLACE PER SRM 51-10-02 STEP 9; [03] LOCATED AND DRILLED SHIELD P/N 143A8126-21; LOT.#146355;IAW SRM.51-40-05; DWG#143A0080.; [04] VERIFIED LOCATE AND DRILL OF NEW FWD SHIELD PER SRM 51-40-05; DWG#143A0080; [05] OK TO INSTALL ON FCB. FORWARD SHIELD BTW BS.420-440 RBL 25 WL 157; [06] OK TO INSTALL; [07] INSTALLED ON FCB. FORWARD SHIELD BTW BS.420-440 RBL 25 WL 157 PER SRM 51-40-02. DWG#143A0080; [08] REMOVED AND REPLACED ON FCB. FORWARD SHIELD P/N143A8126-21 BTW BS.420-440 RBL 25 WL 157 PER SRM 51-10-02. ITEM9.C. DWG#143A0080.; [09] STEP 7 AND 8 COMPLETED; [10] VERIFIED INSTALLATION OF FORWARD SHIELD P/N143A8126-21 BTW BS.420-440 RBL 25 WL 157 PER SRM 51-10-02. ITEM9.C. DWG#143A0080

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