# SDR UPS07450276

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2007
- Submitted: July 27, 2007
- Operation: Air carrier
- Aircraft: N522UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21936
- Aircraft time: 74,820 hours, 17,560 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 69B030061
- Condition: Corroded
- Location: Bs 2300-2320
- 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/UPS07450276

## Discrepancy

INSPECTION TYPE:C M/D STA2300-2320 LBL34 FLOOR SUPPORT FOUND SEVERAL CORROSION.  CORROSION BLEND OUT 0.023" BY 1" BY 4" EXCEED SRM LIMIT.  M/D BS 2300-2320 LBL34 FLOOR SUPPORT REPLACED AND INSTALED AS PER SRM 51-10-01 PG 9 AND 51-30-02.

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