# SDR UPS05445355

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2005
- Submitted: September 7, 2005
- Operation: Air carrier
- Aircraft: [N526UP](https://openairdocs.org/aircraft/N526UP), registered now
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21937
- Aircraft time: 86,711 hours, 16,361 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Stiffener
- Part number: 65B15069417
- Condition: Cracked
- Location: Bs 1460
- 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/UPS05445355

## Discrepancy

LT KEEL BEAM VERTICAL WEB SURFACE EXTERNAL ATT STIFFENER FOUND CRACKED AT STA 1460 LBL 9, CRACK LENGTH .625.  STIFFENER REPLACED AS PER SRM 51-10-01 PG 9.

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