Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
May 31, 2023
Submitted
July 5, 2023
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
38,452 hours, 23,554 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 FWD CABIN BS380+14 RBL10 WL208.<[01] REMOVED CRACKED INTERCOSTAL AT FWD CABIN BS 380-400 RBL 10 WL 208 IAW SRM 51-40-02;[02] OBTAINED NEW INTERCOSTAL AT FWD CABIN BS380 TO BS 400 BL10 WL208 ; LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG #143A5410 ; OK TO INSTALL;[03] VERIFIED CORRECTIVE ACTION ITEM 2. OKAY TO INSTALL NEW INTERCOSTAL GIVEN.;[04] INSTALLED NEW INTERCOSTAL AT FWD CABIN BS380 TO BS 400 BL10 WL208 ; IAW SRM 51-40-02 AND DWG # 143A5400;[05] VERIFIED CORRECTIVE ACTION 4;[06] VERIFIED MEASUREMENT TABLE

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