Service difficulty report · Support · Boeing 73779P

Difficulty date
December 27, 2022
Submitted
February 7, 2023
Operation
Air carrier
Aircraft
N7855A
Make and model
Boeing 73779P
Aircraft serial
29357
Aircraft time
53,057 hours, 34,450 cycles
Part
Support
Part number
NOTREPORTED
Part serial
NOTREPORTED
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

CRACK CHANNEL SUPPORT LOCATED BS727E RBL13.84 AND WL156 AFT CARGO COMPARTMENT 2022-707398<[01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600D; S/N: 190023010; CAL DUE DATE: 14-FEB-23;[02] TOOL USED P/N:500-193-30 S/N:0000293 DUE DATE:12-OCT-23;[03] PERFORMED PERMANENT REPAIR ON CARGO TRACK LOCATED BTW BS727D TO BS747 RBL13.84 AND WL156 AFT CARGO COMPARTMENT. IAW B737-700 SRM 53-00-53-2R-3 REPAIR 3; FIGURE 203. MATERIAL USED: BAC 1520-1397 ; PO 2022-110840; BAC1509-100688; PO: 2022-202118 .SEE INDIVIDUAL SIGN OFFS BELOW.;[04] PERFORMED PERMANENT REPAIR ON CARGO TRACK LOCATED BTW BS727D TO BS747 RBL13.84 AND WL156 AFT CARGO COMPARTMENT. IAW B737-700 SRM 53-00-53-2R-3 REPAIR 3; FIGURE 203. MATERIAL USED: BAC 1520-1397 ; PO 2022-110840; BAC1509-100688; PO: 2022-202118 .SEE INDIVIDUAL SIGN OFFS BELOW.ITEM RII

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