Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
July 21, 2022
Submitted
August 22, 2022
Operation
Air carrier
Aircraft
N490WN
Make and model
Boeing 7377H4
Aircraft serial
32476
Aircraft time
59,880 hours, 35,571 cycles
Part
Intercostal
Part number
141A54103
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

FLOOR SUPPORT IS CRACKED AT BS 284; BL 0; WL 208 / [01] VERIFIED APPLICABILITY AS PER SRM 53-10-51-1A-1 AFTER EVALUATION; DISCREPANCY WAS FOUND OUT OF LIMIT AS PER SRM 53-10-51-1A-1; STEP 4.B(1)A FIGURE 105; DETAIL A.<BR><BR>LOCATED AND DRILLED NEW INTERCOSTAL P/N: 141A5410-3; IAW SRM 51-40-02 AND DWG 141A5400;[02] VERIFIED CORRECTIVE ACTION 1; OK TO INSTALL SUPPORT.;[03] INSTALLED NEW INTERCOSTAL FLOOR SUPPORT AT BS 277 TO 294 BL 0 WL 208 IAW SRM 51-40-02-0G-0 AND DWG 141A5400;[04] VERIFIED CORRECTIVE ACTION STEP 3.;[05] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

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