# SDR UPS00532239

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2000
- Submitted: April 19, 2000
- Operation: Air carrier
- Aircraft: [N430UP](https://openairdocs.org/aircraft/N430UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25461
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Bypass Valve
- Condition: Intermittent
- Location: Hydraulic Sys
- Stage of operation: LD
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS00532239

## Discrepancy

INSPECTION TYPE: N/A, DURING APPROACH TO BFI, T/E FLAP DISAGREE MESSAGE AT FLAPS LESS THAN 1 DEGREE CHECKLIST RUN & LANDING AT BFI FOUND T/E FLAP  BYPASS VALVE INTERMITTANT INOP.  REMOVED AND REPLACED VALVE.

---
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.