Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
June 14, 2022
Submitted
July 14, 2022
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
59,468 hours, 35,169 cycles
Part
Intercostal
Condition
Cracked
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

CRACK ON PASSENGER CABIN INTERCOSTAL AT LBL 45 BS 312+9. / [01] CRACKED ON PASSENGER CABIN INTERCOSTAL AT LBL 45 BS 312+9 WL 208 P/N 141A5410-12 ; FOUND TO BE OUT LIMITS DUE TO NO ALLOWABLE DAMAGE IN SRM; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C .;[02] VERIFIED CORRECTIVE ACTIONS STEP 1.;[03] REMOVED INTERCOSTAL AT LBL 45 BS 312+9 WL 208 P/N 141A5410-12 I.A.W SRM 51-40-02-0G-0.;[04] RECIVED NEW INTERCOSTAL PO:234228 LOT: 033194 LOCATED AND DRILLED NEW INTERCOSTAL AT LBL 45 BS 312 TO BS328 WL 208 P/N 141A5410-12; IAW 737-700 SRM 51-40-05-0G-0 DWG 141A5400 OK TO INSTALL.-;[05] VERIFIED CORRECTIVE ACTION 4. OK TO INSTALL GIVEN;[06] INSTALLED PASSANGER CABIN INTERCOSTAL AT LBL 45 BS 312+9 PER SRM 51-40-02-0G-0 AND DWG 141A5400;[07] VERIFIED CORRECTIVE ACTION #6.;[08] VERIFIED ALL STEPS COMPLETE.

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