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 WEB AT AFT CARGO BAY BS792 RBL19 WL157. ; / [01] REMOVED CORROSION ON WEB AT AFT CARGO BAY BS 792 RBL 19 WL 157 MAX MATERIAL LOSS L=4';W=1';D=0.020 FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15-1A-1 STEP 4G (2)(B) FIG 103 TOOL USED ID ATS1672 S/N 65092939 DUE 03/2022; [02] VERIFIED CORROSION REMOVALVON WEB AT AFT CARGO BAY BS 792 RBL 19 WL 157 MAX MATERIAL LOSS L=4';W=1';D=0.020 FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15-1A-1 STEP 4G (2)(B) FIG 103 TOOL USED ID ATS1672 S/N 65092939 DUE 03/2022; [03] REMOVED WEB AT AFT CARGO BAY BS 787 - BS 793 RBL 19 WL 157 IAW SRM 51-40-02 AND FORMED WEB AT AFT CARGO BAY BS 787 - BS 793 FROM 7075T0#0.045'SH C LOT #1460866-1 IAW DWG 146A8123-22 REV A; [10] INSTALLED NEW WEB AT AFT CARGO BAY BS 787 - BS 793 RBL 19 WL 157 IAW SRM 51-40-02 DWG # 146A8120;

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