Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
January 12, 2023
Submitted
February 10, 2023
Operation
Air carrier
Aircraft
N279WN
Make and model
Boeing 7377H4
Aircraft serial
32532
Aircraft time
52,335 hours, 31,548 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

MAIN CABIN INTERCOSTAL BETWEEN STA 270-294.5 BL0' CRACKED<[01] REMOVED INTERCOSTAL AT MAIN CABIN BETWEEN STA; 270-294.5 BLO ' PER. REF. SRM 51-40-02-0G-0;[02] DRILLING IN PLACE NEW INTERCOSTAL PER. REF. 51-40-05-0G-0;[03] VERIFIED STEPS 1AND 2 OK TO INSTALL NEW INTERCOSTAL;[04] INSTALLED NEW INTERCOSTAL AT MAIN CABIN BETWEEN STA.270-294.5 BL0'' PER. REF. SRM51-40-02-0G-0 AND DRW.141A5400;[05] CORRECTION ON STEP 4 INSTALLED NEW INTERCOSTAL AT MAIN CABIN BETWEEN STA.270-294.5 BL0'' PER. REF. SRM51-40-02-0G-0 AND DWG.141A5400;[06] VERIFIED STEP 5

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