Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
January 18, 2023
Submitted
February 7, 2023
Operation
Air carrier
Aircraft
N209WN
Make and model
Boeing 7377H4
Aircraft serial
32484
Aircraft time
59,684 hours, 35,490 cycles
Part
Intercostal
Part number
NOTREPORTED
Part serial
NOTREPORTED
Condition
Cracked
Location
Zn 200 Fus Top
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

CRACK ON PASSENGER CABIN FLOOR INTERCOSTAL AT BS 500D+10 BL 0.(MARKED)<[01] DAMAGE FOUND AT PASSENGER CABIN FLOOR INTERCOSTAL UPPER ANGLE FOUND TO BE OUT OFF LIMIT DUE TO NO LIMIT ON SRM PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-40-02-0G-0. PAR. 9C;[02] REMOVED PASSENGER CABIN FLOOR INTERCOSTAL UPPER ANGLE BS-500D-TO-BS-520; BL-0; WL 208; IAW SRM 51-40-02-0G-0;[03] VERIFIED CORRECTIVE ACTION 1 AND 2. VERIFIED MEASUREMENT TABLE;[04] LOCATED AND DRILLED NEW ANGLE PER REF SRM 51-40-02-0G-0 <BR><BR>OK TO INSTALL NEW ANGLE;[05] CORRECTION ENTRY NBR 4: REF SRM 51-40-05-0G-0;[06] VERIFIED CORRECTIVE ACTION 4 AND 5. OK TO INSTALL UPPER INTERCOSTAL ANGLE.;[07] INSTALLED NEW ANGLE AT PASSENGER CABIN FLOOR INTERCOSTAL AT BS 500D+10 BL 0. PER REF SRM 51-40-02-0G-0 AND DWG NBR 143A5400;[08] VERIFIED CORRECTIVE ACTION 7;[09] VERIFIED MEASUREMENT TABLE- WORKSCOPE COMPLETE.

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