# SDR UPS00433288

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2000
- Submitted: July 12, 2000
- Operation: Air carrier
- Aircraft: N521UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21944
- Aircraft time: 62,800 hours, 15,449 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Frame
- Condition: Corroded
- Location: Rt Wing
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS00433288

## Discrepancy

INSPECTION TYPE:C, RT WING L/E CORROSION ON WING BULL NOSE AT CONNECTION FOR WAI VLV.  REPAIR CARRIED OUT IAW QUERY NOTE 42/2000 AND SRM 51-40-04 FIG 1 AND SRM 57-10-03 FIG 7.  CUT OUT CORRODED AREA AND INSTALLED SPLICE SECTION OF CHORD.

---
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.