Service difficulty report · Support · Boeing 73776N

Difficulty date
February 8, 2023
Submitted
March 6, 2023
Operation
Air carrier
Aircraft
N7885A
Make and model
Boeing 73776N
Aircraft serial
33379
Aircraft time
62,518 hours, 31,343 cycles
Part
Support
Condition
Cracked
Location
Zn 100 Fus Lower
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

BRACKET HAS A CRACK BS 540+7 RBL 19 ON R/H SIDE SUPPORT BEAM - WING CENTER SECTION.<[01] EVALUATED BRACKET SUPPORT RH SIDE A/C SYSTEM PIPE AND NO FOUND ALLOWABLE DAMAGE ON SRM 53-40-71-1A-1; REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9.C. CRACK MEASUREMENT L=1.0'' TOOL USED CALIPER ID:ATS2739 SN:A22004232 DUE DATE:11/2023.;[02] REMOVED BRACKET SUPPORT RH SIDE A/C SYSTEM PIPE IAW SRM 51-40-02-0G-0.;[03] OK TO INSTALL NEW SUPPORT BRACKET. P/N:212A1116-1;[04] VERIFIED CORRECTIVE ACTION 1; 2 AND 3 WITH OK TO INSTALL BRACKET. <BR>VERIFIED MEASUREMENT TABLE;[05] INSTALLED NEW SUPPORT BRACKET IAW SRM 51-40-02-0G-0 AND DWG#212A1116.;[06] VERIFIED CORRECTIVE ACTION 5

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