Service difficulty report · Shield · Boeing 737*

Difficulty date
March 17, 2022
Submitted
April 20, 2022
Operation
Air carrier
Aircraft
N472WN
Make and model
Boeing 737*
Aircraft serial
33831
Aircraft time
58,559 hours, 34,804 cycles
Part
Shield
Condition
Corroded
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 DOOR CUTOUT AFT SHIELD IS CORRODED AT STA 847+19; WL 165; RBL 23. / [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 9C.-;[02] VERIFIED APPLICABILITY OF SRM 51-10-02 STEP 9C;[03] VERIFIED CORRECTIVE ACTION #1 AND #2;[04] RECEIVED ON AFT CARGO BAY DOOR CUTOUT AFT SHIELD AT BS847 TO BS867 RBL23 WL165 NEW ITEM 146A8127Y10 LOT#1482487-1. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 146A0081;[05] VERIFIED CORRECTIVE ACTION STEP 4.;[06] UPDATED STEP 1;[07] INSTALLED AFT CARGO BAY DOOR CUTOUT AFT SHIELD AT BS847 TO BS867 RBL23 WL165 IAW SRM 51-40-02-0G-0 AND DRAWING# 146A0081.;[08] VERIFIED CORRECTIVE ACTION 7 AND STEP 1.;[09] PART REPLACED; WORK COMPLETED.