Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
October 6, 2022
Submitted
November 8, 2022
Operation
Air carrier
Aircraft
N201LV
Make and model
Boeing 7377H4
Aircraft serial
29854
Aircraft time
59,586 hours, 35,374 cycles
Part
Intercostal
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

INTERCOSTAL TOP ANGLE AT BL 0; BS 500D TO BS 520; WL 208 HAS MULTIPLE CRACKS / [01] NO ALLOWABLE DAMAGE FOUND ON SRM . PART TO BE REPAIR BY REPLACEMENT PER SRM 51-10-02 PARAGRAPH 9.C;[02] VERIFIED ITEM 1 CORRECTIVE ACTIONS.;[03] INSTALLED FOD PROTECTION OF ELECTRICAL WIRING INTERCONNECTION SYSTEM (EWIS) PER AMM 20-60-07.;[04] REMOVED INTERCOSTAL TOP ANGLE AT DISCREPANCY AREA PER SRM 51-40-02.;[05] RECEIVED; LOCATED AND DRILLED INTERCOSTAL TOP ANGLE 143A5410-170 LOT# 1505552-1 PER SRM 51-40-05 AND DWG 143A5400 SHEET 32. OK TO INSTALL.;[06] VERIFIED ITEM 5 CORRECTIVE ACTIONS.<BR>OK TO INSTALL.;[07] REMOVED FOD PROTECTION OF ELECTRICAL WIRING INTERCONNECTION SYSTEM (EWIS) AT DISCREPANCY AREA PER AMM 20-60-07.<BR>INSTALLED INTERCOSTAL TOP ANGLE 143A5410-170 PER SRM 51-40-02 AND DWG 143A5400 SHEET 32.;[08] VERIFIED CORRECTIVE ACTION ITEM 7. <BR>VERIFIED INSTALLATION OF NEW ANGLE.<BR>VERIFIED MEASUREMENT TABLE COMPLETED.

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