# SDR P5CA0300995

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2003
- Submitted: November 26, 2003
- Operation: Air carrier
- Aircraft: N524UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 21446
- Aircraft time: 68,293 hours, 18,153 cycles
- System (JASC): [2397 · Communications System Wiring](https://openairdocs.org/jasc/2397)
- Part: Wire
- Condition: Shorted
- Location: Control Panel
- 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/P5CA0300995

## Discrepancy

UNABLE TO GET F/O'S MACH TO WORK PROPERLY (F/O'S YOKE MIKE SWITCH INOP).  REPAIRED WIRES AT F/O'S MASK TACH PNL REF 23-51-00.

---
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.