Service difficulty report · Web · Boeing 73776N

Difficulty date
July 15, 2021
Submitted
August 10, 2021
Operation
Air carrier
Aircraft
N7723E
Make and model
Boeing 73776N
Aircraft serial
32670
Aircraft time
48,099 hours, 24,239 cycles
Part
Web
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

CORROSION ON SUBTHRESHOLD WEB AT AFT CARGO BAY BS802 - BS827 RBL26 WL159. ; / [01] REMOVED CORROSION ON SUBTHRESHOLD WEB AT AFT CARGO BAY BS802-BS827 RBL26 WL159 DIMENSIONS: L=25' W=2' D=0.007' WAS FOUND OUT OF LIMIT DUE MATERIAL LOSS IS MORE THAN 10% OF THICKNESS IAW SRM 53-60-15-1A-1 ITEM 4.G(2) FIG. 103 <BR>TOOL USED: ID E9655; S/N:UNKNOWN; DUE DATE: 03/2022; [02] VERIFIED EVALUATION AND FOUND TO BE OUT OF LIMITS PER SRM 53-60-15-1A-1; [03] REMOVED SUBTHRESHOLD WEB AT AFT CARGO BAY BS790 BS847 RBL 26 WL 159 IAW SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW SUBTHRESHOLD WEB AT AFT CARGO BAY BS 790- BS 847 RBL26 WL159 ITEM #146A8123U25; LOT #1462694 IAW SRM 51-40-05-0G-0 AND DWG #146A8123; [05] VERIFIED LOCATE AND DRILL OF NEW SUBTHRESHOLD WEB AT ACB BS 790-BS 847 RBL 26 WL 159 ITEM #146A8123U25; LOT # 1462694 IAW SRM 51-40-05-0G-0 AND DWG #146A8123.; [06] OK TO INSTALL; [07] VERIFIED ACTION 5; 6; [08] INSTALLED NEW SUBTHRESHOLD WEB AT AFT CARGO BAY BS802-BS827 RBL26 WL159 ITEM# 146A8123U25 LOT# 1462694; PO#829359; IAW SRM 51-40-02; DWG 146A8340; [09] VERIFIED; ACTION 8; [10] VERIFIED ACTION 8

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