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 900 Lav/Galle
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 STRAP LOCATED BS1006 TO BS1040 AT LBL3 AND WL208.1 AT AFT GALLEY AREA 2022-696985<[01] TOOL USED UT EQUIPMENT P/N: 45MG; S/N: 130066701; CAL DUE DATE: 08-APR-23;[02] REPLACED STRAP LOCATED FLOOR STRUCTURE STRAP LOCATED BS1006 TO BS1040 AT LBL3 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 STRAP LOCATED FLOOR STRUCTURE STRAP LOCATED BS1006 TO BS1040 AT LBL3 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 147A5600 SHEET: 1 REV: H.<BR>SEE INDIVIDUAL SIGN OFF BELOW;[04] TASK COMPLETED; RII <BR><BR>SEE INDIVIDUAL SIGN OFFS BELOW

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