Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
July 25, 2022
Submitted
September 6, 2022
Operation
Air carrier
Aircraft
N493WN
Make and model
Boeing 7377H4
Aircraft serial
32477
Aircraft time
58,674 hours, 34,928 cycles
Part
Intercostal
Part number
147A576526
Condition
Corroded
Location
Aft Galley
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 INTERCOSTAL LOCATED BS 947.5 PLUS 4 IN WL 208.1 AND BETWEEN RBL 29 TO RBL 48 AT AFT GALLEY AREA 2022-409991 / [01] REPLACED INTERCOSTAL LOCATED BS 947.5 PLUS 4 IN WL 208.1 AND BETWEEN RBL 29 TO RBL 48 AT AFT GALLEY AREA. IAW B737-700 SRM: 51-10-02 AND DWG: 147A5760 REV._;[02] CORECTED STEP 1; REPLACED INTERCOSTAL LOCATED BS 947.5 PLUS 4 IN WL 208.1 AND BETWEEN RBL 29 TO RBL 48 AT AFT GALLEY AREA. IAW B737-700 SRM: 51-10-02 AND DWG: 147A5760 REV._ SEE INDIVIDUAL SING OFFS BELOW.;[03] TASK COMPLETED; RII <BR><BR>SEE INDIVIDUAL SIGN OFFS BELOW

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