# SDR UPS06446324

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2006
- Submitted: March 1, 2006
- Operation: Air carrier
- Aircraft: N522UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 21936
- Aircraft time: 72,217 hours, 16,929 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- Condition: Corroded
- Location: 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/UPS06446324

## Discrepancy

INSPECTION TYPE:C RIGHT BLG W/W TOP PANEL SUPPORT STIFFENER SURFACE CORROSION REVEALED AT STA 1403 RBL 96-98.  CORROSION BLEND OUT 0.033 X 2 X 4 INCH EXCEED SRM 53-10-01 FIG 1 LIMIT.  SUPPORT STIFFENER REPAIRED AS PER SRM 51-40-04 FIG 1.

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