Service difficulty report · Support · Boeing 73776N

Difficulty date
August 20, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N7822A
Make and model
Boeing 73776N
Aircraft serial
32596
Aircraft time
59,949 hours, 29,584 cycles
Part
Support
Part number
143A948535
Condition
Corroded
Location
Fwd Cargo Bay
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 AFT BULKHEAD TO FLOOR SUPPORT AT FWD CARGO BAY BS500D LBL23 TO RBL23 WL156. ; / [01] CORROSION ON SUPPORT FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SPM.; [02] VERIFIED NO LIMITS; REPAIR BY REPLACEMENT OF PART.; [03] CORROSION ON SUPPORT FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.; [04] UPDATED MEASUREMENTS; [05] REMOVED AFT BULKHEAD TO FLOOR SUPPORT AT FWD CARGO BAY BS 500D LBL 23 TO RBL 23 WL 153 PER SRM 51-40-02-0G-0; [06] LOCATED/DRILL AFT BULKHEAD TO FLOOR SUPPORT AT FCB BS500D; LBL23 - RBL23; WL 156 PER SRM 51-40-05-0G-0 AND DWG 143A9481; DWG 143A7902; [07] VERIFIED CORRECTIVE ACTION ENTRY 6.; [08] OK TO INSTALL LOWER BULKHEAD BS 500D; [09] VERIFIED OK TO INSTALL REPLACEMENT SUPPORT BS 500D LBL 23 TO RBL 23 WL 156; [10] INSTALLED FWD CARGO BAY LOWER BULKHEAD SUPPORT ANGLE BS 500D LBL 23 TO RBL 23 WL 156 PER SRM 51-40-02-0G-0; DWG 143A9481; AND DWG 143A7902; [11] VERIFIED INSTALLED FWD CARGO BAY LOWER BULKHEAD SUPPORT ANGLE BS 500D LBL 23 TO RBL 23 WL 156 PER SRM 51-40-02-0G-0; DWG 143A9481; AND DWG 143A7902

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