# SDR UIEA2025100701258

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2025
- Submitted: October 7, 2025
- Operation: Air carrier
- Aircraft: [N485MC](https://openairdocs.org/aircraft/N485MC), registered now
- Make and model: Boeing 747-45EF
- Registry model: [Boeing 747-45EF](https://openairdocs.org/model/boeing-747-45ef) (OpenAirDocs)
- Aircraft serial: 30607
- Aircraft time: 111,077 hours, 19,658 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead Web
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025100701258

## Discrepancy

CRACK - PFM MOD PER SB 747-53A2837 AT STA 2598 FND BULKHEAD RH SIDE WEB AND AFTER CHORD FASTENER HOLE CRACK(<P>1. ACCOMPLISHED EI NO.T2025A53M-2100 REV. 4. 2. JOB COMPLETED AND CONDITION CHK NORMAL</P>)

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