Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
January 25, 2023
Submitted
March 3, 2023
Operation
Air carrier
Aircraft
N955WN
Make and model
Boeing 7377H4
Aircraft serial
36671
Aircraft time
38,739 hours, 23,607 cycles
Part
Intercostal
Condition
Cracked
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

CRACK ON FWD PASSENGER CABIN INTERCOSTAL AT BS 277+14 BL 0.<[01] VERIFIED APPLICABILITY FOR SRM 53-10-51-1A-1.<BR>EVALUATED FWD. PASSENGER CABIN INTERCOSTAL AT BS 277+14 BL 0 FOUND INTERCOSTAL TO BE OUT LIMITS PER SRM 53-10-51-1A-1 AND SHOULD BE REPAIR BY REPLACEMENT PER SRM 51-10 -02 PAR. 9.;[02] CERTIFIED CORRECTIVE ACTION 1;[03] VERIFIED CORRECTIVE ACTION #1;[04] REMOVED PASSENGER CABIN INTERCOSTAL AT BS277 - BS 294.5 BL 0 IAW SRM 51-40-02-0G-0;[05] LOCATED AND DRILLED NEW PASSENGER CABIN INTERCOSTAL AT BS277 - BS 294.5 BL 0 IAW SRM 51-40-05-0G-0 AND DWG 141A5400. OK TO INSTALL;[06] CERTIFIED CORRECTIVE ACTIONS 4 AND 5;[07] OK TO INSTALL NEW CABIN INTERCOASTAL..;[08] INSTALLED NEW PASSENGER CABIN INTERCOSTAL AT BS277 - BS 294.5 BL 0 IAW SRM 51-40-02-0G-0 AND DWG 141A5400.;[09] CERTIFIED CORRECTIVE ACTION 8;[10] VERIFIED CORRECTIVE ACTION #8;[11] TASK CARD COMPLETE;[12] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

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