# SDR UPS05445036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2005
- Submitted: August 5, 2005
- Operation: Air carrier
- Aircraft: N683UP
- Make and model: Boeing 747121
- Aircraft serial: 20353
- Aircraft time: 87,225 hours, 21,374 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Keelbeam
- Part number: 65B140561
- Condition: Corroded
- Location: Fusleage
- 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/UPS05445036

## Discrepancy

FX KEELBEAM PANEL SUPPORT FOUND CORROSION AT BS 1405.  CORROSION BLEND OUT 0.054 BY .750 BY 1.5 EXCEED SRM 53-10-01 FIG 1 LIMITS, SUPPORT REPLACED AS PER SRM 51-10-01 PG 9.

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