# SDR IPXA2026061066624

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 2026
- Submitted: June 12, 2026
- Operation: Air carrier
- Aircraft: [N577UP](https://openairdocs.org/aircraft/N577UP), registered now
- Make and model: Boeing 747-44AF
- Registry model: [Boeing 747-44AF](https://openairdocs.org/model/boeing-747-44af) (OpenAirDocs)
- Aircraft serial: 35666
- Aircraft time: 63,511 hours, 9,924 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 65B0616552
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2026061066624

## Discrepancy

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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