Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
May 25, 2023
Submitted
June 29, 2023
Operation
Air carrier
Aircraft
N960WN
Make and model
Boeing 7377H4
Aircraft serial
36675
Aircraft time
38,108 hours, 23,248 cycles
Part
Intercostal
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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 STA 277+7 & 277+13.5; WL 208; RBL 1.<[01] REMOVED INTERCOSTAL FOR REPLACED BS 277 TO 794 WL 208 RBL 1.<BR>IAW SRM 51-40-02-0G-0;[02] LOCATED IN DRILLED NEW INTERCOSTAL BS 277 TO 294 W2L 208 RBL 1. IAW SRM 51-40-05-0G-0 <BR>OK TI INSTALL;[03] UPDATED MEASUREMENT TABLE;[04] CORECTIVED TABLE STEP 5-8-10;[05] CERTIFY;[06] VERIFIED CORRECTION ACTION ITEM 2;3;4;5 AND MEASUREMENT TABLE; OK TO INSTALL GIVEN.;[07] INSTALLED NEW INTERCOSTAL BS 277 TO 294 WL 208 RBL 1. IAW SRM 51-40-02-0G-0 AND 51-40-05-0G-0 AND DWG # 141A5400 REV:-;[08] VERIFIED CORRECTIVE ACTION STEP 7.;[09] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

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