# SDR UPS05443991

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2005
- Submitted: March 2, 2005
- Operation: Air carrier
- Aircraft: [N676UP](https://openairdocs.org/aircraft/N676UP), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20101
- Aircraft time: 80,944 hours, 22,482 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Part number: 144U26031
- 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/UPS05443991

## Discrepancy

INSPECTION TYPE: C, LT BODY L/G W/W STA 1480 BULKHEAD APU BLEED AIR DUCT CUT OUT FOUND CRACKED AT LEFT O/B SIDE LBL 100.  CRACK LENGTH 2.5 INCH, LT BODY L/G W/W BS 1480 BULKHEAD APU BLEED AIR DUCT CUTOUT REPAIRED AS PER SB B747-53-2309 R1, EO B747-5310-3100-C AND DWG 144U2602.

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