# SDR UPS06446903

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2006
- Submitted: May 19, 2006
- Operation: Air carrier
- Aircraft: N521UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 21944
- Aircraft time: 77,205 hours, 18,330 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Cargo Track
- Condition: Cracked
- Location: Fuselage
- 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/UPS06446903

## Discrepancy

INSPECTION TYPE:C M/D BS 520-530 RBL 91 TIE DOWN TRACK I/B FLANGE FOUND CRACK.  CRACK LENGTH .4375 INCH.  M/D BS 480 TO BS 530 RBL 91 AREA SEAT TRACK REPAIRED AS PER SRM 53-10-05 FIG 4.

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