# SDR UPS04443369

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2004
- Submitted: October 20, 2004
- Operation: Air carrier
- Aircraft: N681UP
- Make and model: Boeing 747121
- Aircraft serial: 19661
- Aircraft time: 104,265 hours, 26,546 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Location: Lt Mlg Ww
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS04443369

## Discrepancy

INSPECTION TYPE: C, LEFT MLG WW AFT BULKHEAD APU BLEED AIR DUCT CUTOUT I/B UPPER AREA CRACKED AT STA 1480, LBL 100.  LEFT BLG W/W AFT BULKHEAD APU BLEED AIR DUCT CUTOUT WEB REPAIRED AS PER EO B747-5310-3100-C FIG 4.

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