Service difficulty report · Structure · Boeing 73779P

Difficulty date
December 16, 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
Structure
Part number
NOTREPORTED
Part serial
NOTREPORTED
Condition
Corroded
Location
Zn 200 Fus Top
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 FLOOR STRUCTURE PLATE LOCATED BS1016 TO BS1040 AT RBL18 AND WL208.1 AT AFT GALLEY AREA 2022-696983<[01] TOOL USED UT EQUIPMENT P/N: 45MG; S/N: 130066701; CAL DUE DATE: 08-APR-23;[02] REPLACED PLATE LOCATED BS1016 TO BS1040 AT RBL18 AND WL208.1 AT AFT GALLEY AREA.IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM B737-700 51-40-02. SEE INDIVIDUAL SIGN OFF BELOW;[03] CORRECTED STEP 2. REPLACED PLATE LOCATED BS1016 TO BS1040 AT RBL18 AND WL208.1 AT AFT GALLEY AREA.IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM B737-700 51-40-02 AND DWG 147A5730 SHEET 23 REV: C.<BR> SEE INDIVIDUAL SIGN OFF BELOW;[04] CORRECTIVE ACTION STEP 3 CERTIFIED;[05] CORRECTIVE ACTION STEP 3 CERTIFIED RII

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