Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
July 9, 2022
Submitted
August 17, 2022
Operation
Air carrier
Aircraft
N202WN
Make and model
Boeing 7377H4
Aircraft serial
33999
Aircraft time
58,974 hours, 35,001 cycles
Part
Intercostal
Part number
141A5410U10
Condition
Cracked
Location
Fwd Cabin
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

CRACKED INTERCOSTAL AT FWD CABIN BS294+6 RBL31. MARKED. / [01] REMOVED HI-LOCKS FROM INTERCOSTAL AT FWD CABIN BS 294+6 RBL 31 <BR>IAW SRM 51-40-02-0G-0.;[02] VERIFIED APPLICABILITY PER SRM 53-00-04-1A-1 AND BOEING DWG 141A5400<BR>REPAIR PER REPLACEMENT PER SRM 53-00-04-1A-1<BR>LOCATED AND MATCH DRILLED NEW INTERCOSTAL AT FWD CABIN BS294+6 RBL31 WL208 IAW SRM 51-40-05 AND BOEING DWG 141A5400;[03] VERIFIED CORRECTIVE ACTIONS #1 AND 2; AND UPDATING OF MEASUREMENTS;[04] VERIFIED CORRECTIVE ACTION 1-3 OK TO INSTALL;[05] INSTALLED INTERCOSTAL AT FWD CABIN BS294+6 RBL31 IAW SRM 51-40-02 AND BOEING DWG 141A5400;[06] VERIFIED;[07] VERIFIED CORRECTIVE ACTION ITEM 5.<BR><BR>** FLOOR PANEL FASTENER HOLES REQUIRE LOCATION AND DRILLING.;[08] VERIFIED APPLICABILITY PER SRM 53-00-04-1A-1 AND BOEING DWG 141A5400<BR>REPAIR PER REPLACEMENT PER SRM 53-00-04-1A-1<BR>LOCATED AND MATCH DRILLED NEW INTERCOSTAL AT FWD CABIN BS294+6 RBL31 WL208 IAW SRM 51-40-05 AND BOEING DWG 141A5400 <BR>UPDATED MEASUREMENTS TABLE.;[09] VERIFIED;[10] LOCATED AND DRILLED FLOOR PANEL HOLES IAW SRM 51-40-05-0G-0;[11] VERIFIED CORRECTIVE ACTION #5; 8<BR>VERIFIED MEASUREMENTS

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