# SDR UPS402980

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N673UP](https://openairdocs.org/aircraft/N673UP), registered now
- Make and model: Boeing 747123F
- Aircraft serial: 20325
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keel Beam
- Condition: Corroded
- Location: Bs 1241
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS402980

## Discrepancy

WHILE IN AMSTERDAM FOR 'C' CHECK, MAINTENANCE FOUND CORROSION RT WLG W/W BSTA 1241, CANTED PRESSURE DECK KEEL BEAM T-CHORD AT RBL 4, BETWEEN APU FUEL FEED CLOSE-OUT PANEL AND T-CHORD.  INSTALLED REPAIR PER SRM 53-10-07.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.