Service difficulty report · Intercostal · Boeing 74744AF

Difficulty date
June 2, 2026
Submitted
June 12, 2026
Operation
Air carrier
Aircraft
N577UP
Make and model
Boeing 74744AF
Aircraft serial
35666
Aircraft time
63,511 hours, 9,924 cycles
Part
Intercostal
Part number
65B0616552
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
V
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

BULK CARGO FLOOR INTERCOSTAL CRACK BS 2000, RBL 22.50. INSTALLED FABRICATED PARTS IAW SRM 51-40-02-0G, REV.106, & DWG 146U5094, SH7, REV-, & DWG 146U5090, SH42 REV-.

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