Service difficulty report · Support · Boeing 73779P

Difficulty date
June 6, 2023
Submitted
July 10, 2023
Operation
Air carrier
Aircraft
N7827A
Make and model
Boeing 73779P
Aircraft serial
28255
Aircraft time
57,742 hours, 36,958 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 BS727D TO BS727E RBL 23 WL 155.5 AT AFT CARGO COMPARTMENT 2023-365566<[01] TOOL USED: ULTRASONIC THICKNESS GAGE P/N: 45MG S/N: 221859911 DUE DATE: 07-NOV-23;[02] REPLACED SUPPORT ZEE LOCATED BTW BS727 TO BS767 RBL 23 WL 155.5 AT AFT CARGO COMPARTMENT AND FASTENERS I.A.W B737-700 SRM 51-40-02 AND DWG 146A7500 SHEET 61 REV - SEE INDIVIDUAL SIGN OFF BELOW;[03] TASK CARD COMPLETED <BR>REPLACED SUPPORT ZEE LOCATED BTW BS727 TO BS767 RBL 23 WL 155.5 AT AFT CARGO COMPARTMENT AND FASTENERS I.A.W B737-700 SRM 51-40-02 AND DWG 146A7500 SHEET 61 REV - SEE INDIVIDUAL SIGN OFF BELOW<BR>RII

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