Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
September 3, 2022
Submitted
October 3, 2022
Operation
Air carrier
Aircraft
N499WN
Make and model
Boeing 7377H4
Aircraft serial
32481
Aircraft time
59,508 hours, 35,262 cycles
Part
Intercostal
Condition
Corroded
Location
Fuselage
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 BETWEEN BS947.5 TO BS967 AND RBL30; WL208.1 AT PASSENGER CABIN 2022-488715 / [01] REPLECED INTERCOSTAL LOCATED BETWEEN BS947.5 TO BS967 AND RBL30; WL208.1 AT PASSENGER CABIN I.A.W B737-700 SRM 51-10-02 Ï¿½TEM 9 AND EVALUATED FLOOR STRUCTURE INTERCOSTAL AND FOUND WITH LIMITS IAW B737-700 SRM 53-70-51-1A-1 AND MUST BE REPLACED. SEE INDIVIDUAL SING OFF BELOW;[02] CORRECTED STEP 1<BR>REPLECED INTERCOSTAL LOCATED BETWEEN BS947.5 TO BS967 AND RBL30; WL208.1 AT PASSENGER CABIN I.A.W B737-700 SRM 51-10-02 Ï¿½TEM 9 AND EVALUATED FLOOR STRUCTURE INTERCOSTAL AND NOT FOUND WITH LIMITS IAW B737-700 SRM 53-70-51-1A-1 AND MUST BE REPLACED. SEE INDIVIDUAL SING OFF BELOW;[03] CORRECTED STEP 2 <BR>REPLECED INTERCOSTAL LOCATED BETWEEN BS947.5 TO BS967 AND RBL30; WL208.1 AT PASSENGER CABIN I.A.W B737-700 DWG 147A5760 SHEET 1 REV B SRM 51-10-02 Ï¿½TEM 9 SEE INDIVIDUAL SIGN-OFF BELOW;[04] REPLECED INTERCOSTAL LOCATED BETWEEN BS947.5 TO BS967 AND RBL30; WL208.1 AT PASSENGER CABIN I.A.W B737-700 DWG 147A5760 SHEET 1 REV B SRM 51-10-02 Ï¿½TEM 9. RII; SEE INDIVIDUAL SIGN-OFF BELOW

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