Service difficulty report · Support · Boeing 7377H4

Difficulty date
June 16, 2023
Submitted
July 10, 2023
Operation
Air carrier
Aircraft
N298WN
Make and model
Boeing 7377H4
Aircraft serial
32543
Aircraft time
51,544 hours, 30,702 cycles
Part
Support
Part number
UNKNOWN
Condition
Corroded
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

CORROSION SUPPORT ZEE LOCATED BTW BS 727A TO BS 787 STR 25L LBL 22 AND WL 156 AFT CARGO COMPARTMENT 2023-378974<[01] TOOL USED ULTRASONIC THICKNESS GAUGE P/N: 45MG; S/N: 130066401; CAL DUE DATE: 21-SEP-23;[02] REPLACED SUPPORT ZEE SECTION LOCATED BTW BS 727+4 INCHES TO BS 727E+16 INCHES STR 25L; LBL 22 AND WL 156 AFT CARGO COMPARTMENT IAW B737-700 SRM 51-10-02-0G-0; B737-700 SRM 51-40-02-0G-0 AND DWG 146A7500 SHEET 113 REV -SRM 53-00-53-2R-5 REPAIR 5.<BR>SEE INDIVIDUAL SIGN OFFS BELOW.;[03] TASK CARD COMPLETE AND CERTIFIED AS RII. <BR><BR><BR>SEE INDIVIDUAL SIGNOFFS BELOW.

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