Service difficulty report · Intercostal · Boeing 7378H4

Difficulty date
November 26, 2024
Submitted
December 18, 2024
Operation
Air carrier
Aircraft
N8512U
Make and model
Boeing 7378H4
Aircraft serial
38816
Aircraft time
26,682 hours, 13,283 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

FWD CARGO COMPARTMENT FLOOR STRUCTURE; LEFT SIDE PLATE INTERCOSTAL WEB HAS CRACK @ STA 400. (MARKED)<[01] FABRICATED INTERCOSTAL WEB/BAFFLE P/N 143A7510-39 PER GRANTED SMAL AND BOEING DWG 143A7510.;[02] VERIFIED WORK COMPLETED IN CORRECTIVE ACTION #1 PER GRANTED SMAL; BOEING DRAWING #143A7510 AND MPM 54.8;[03] REMOVED AND REPLACED PER SRM 51-40-02.

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