Service difficulty report · Bulkhead · Boeing 7377H4

Difficulty date
March 17, 2022
Submitted
April 19, 2022
Operation
Air carrier
Aircraft
N472WN
Make and model
Boeing 7377H4
Aircraft serial
33831
Aircraft time
58,559 hours, 34,804 cycles
Part
Bulkhead
Condition
Cracked
Location
Aft 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

AFT CARGO BAY FWD BULKHEAD SUPPORT BRACKET IS CRACKED AT STA 727+2; WL 163; RBL 5. / [01] THIS PART DOES NOT HAVE ENTRY ON THE LOWER ALLOWABLE DAMAGE LIMITS THERE FOR IT HAS TO BE REPAIRED BY REPLACEMENT PER SRM 51-10-02 STEP 9;[02] VERIFIED CORRECTIVE ACTION #1;[03] REMOVED AFT BULKHEAD SUPPORT ANGLE AT AFT CARGO BAY BS 727+2 RBL 5 WL 163;IAW SRM 51-40-02;[04] RECIVED NEW BULKHEAD ITEM 144A9401-20 LOT1468836 819132/1 LOCATED AND DRILLED NEW BULKHEAD AT BS727+2 RBL 5 WL 163; IAW B 737-700 SRM 51-40-05-0G-0 DWG 144A2600.-;[05] RECIVED NEW BULKHEAD ITEM 144A9401-20 LOT1468836 LOCATED AND DRILLED NEW BULKHEAD AT BS727+2 RBL 5 WL 163; IAW B 737-700 SRM 51-40-05-0G-0 DWG 144A2600.-;[06] VERIFIED CORRECTIVE ACTION #5;[07] OK TO INSTALL.-;[08] INSTALLED PART. IN PARTS BLOCK.;[09] INSTALLED NEW BULKHEAD AT ACB BS 727+2 RBL 5 WL 163 . IAW 773-700 SRM 51-40-02-0G-0; DWG 144A2600. ALL REQUIRED MAINTENANCE ACTIONS ARE COMPLETE=REQUEST FINAL BUYOFF;[10] CORRECTED MEASUREMENTS;[11] VERIFIED CORRECTIVE ACTION #9.

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