Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
May 2, 2023
Submitted
May 31, 2023
Operation
Air carrier
Aircraft
N285WN
Make and model
Boeing 7377H4
Aircraft serial
32536
Aircraft time
51,630 hours, 31,054 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 BS 344-360 LBL 1 WL 208.<[01] REMOVED INTERCOSTAL BETWEEN BS 344 TO BS 360; WL 206;BL 0 IAW SRM 51-40-02.<BR><BR>CRACK ON INTERCOSTAL IT'S OUT OF LIMITS WILL BE REPAIRED BY REPLACEMENT OF PART IAW SRM 51-10-02 PAR 9.;[02] RECEIVED NEW INTERCOSTAL P/N:141A5410U23;LOT:1502441-1 AND LOCATED AND DRILLED BETWEEN BS 344 TO BS 360; WL 206;BL 0 IAW SRM 51-40-05 AND DWG:141A5410 ID:0023. REQUEST OK TO INSTALL NEW INTERCOSTAL.;[03] VERIFIED CORRECTIVE ACTIONS 1 & 2.<BR>OK TO INSTALL NEW INTERCOSTAL.;[04] INSTALLED NEW INTERCOSTAL BETWEEN BS 344 TO BS 360; WL 206;BL 0 IAW SRM 51-40-02 AND DWG: 141A5400 ID:0032 REV:-;[05] VERIFIED CORRECTIVE ACTION 4;[06] CORRECTED TABLE;[07] CORRECTED TABLE;[08] VERIFIED CORRECTIVE ACTION 6-7 AND MEASUREMENT TABLE;[09] CHANGED REPAIR TYPE;[10] CHANGED REPAIR TYPE;[11] VERIFIED CORRECTIVE ACTION 9-10 AND MEASUREMENT TABLE

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