Service difficulty report · Support · Boeing 7377H4

Difficulty date
August 26, 2021
Submitted
September 13, 2021
Operation
Air carrier
Aircraft
N966WN
Make and model
Boeing 7377H4
Aircraft serial
36966
Aircraft time
32,714 hours, 19,999 cycles
Part
Support
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 ON FORWARD CARGO BAY AFT BULKHEAD CENTER PANEL LOWER SUPPORT AT B.S. 500D; L.B.L. 24 - R.B.L. 24; W.L. 154. ; / [01] ADDED MEASURMENTS; [02] NO ALLOWABLE DAMAGE FOUND IN B737-700 SRM FOR FORWARD CARGO BAY AFT BULKHEAD CENTER PANEL LOWER SUPPORT AT BS500D LBL24-RBL24 WL154. REPAIR BY REPLACEMENT IAW SRM 51-10-02-0G-0.; [03] REMOVED FORWARD CARGO BAY AFT BULKHEAD CENTER PANEL LOWER SUPPORT AT BS500D LBL24-RBL24 WL154 IAW SRM 51-40-02-0G-0; [04] VERIFIED NO ALLOWABLE DAMAGE FOUND IN B737-700 SRM FOR FORWARD CARGO BAY AFT BULKHEAD CENTER PANEL LOWER SUPPORT AT BS500D LBL24-RBL24 WL154. REPAIR BY REPLACEMENT IAW SRM 51-10-02-0G-0.; [05] PROCURED NEW FCB AFT BULKHEAD CENTER PNL LOWER SUPPORT ANGLE 143A9485-35 LOT#1467206-1. LOCATED; DRILLED NEW SUPPORT ANGLE PER SRM 51-40-05 AND DWG# 143A9481 REV: -.; [06] VERIFIED ACTION 5; [07] REQUEST OK TO INSTALL NEW FCB BAY AFT BULKHEAD CENTER PNL LOWER SUPPORT AT BS 500D LBL 24 WL 154; [08] OK TO INSTALL FCB AFT CENTER LOWER BULKHEAD SUPPORT GIVEN.; [09] INSTALLED NEW FCB BAY AFT BULKHEAD CENTER PNL LOWER SUPPORT AT BS 500D LBL 24 WL 154. IAW. DWG: 143A7902 AND 143A9481; [10] UPDATED MEASUREMENTS; [11] VERIFIED INSTALLATION OF FCB AFT CENTER LOWER BULKHEAD SUPPORT; CORRECTIVE ACTION 9.; [12] VERIFIED ALL CORRECTIVE ACTIONS ARE COMPLETE AND VERIFIED

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