# SDR GTIA010847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2001
- Submitted: December 4, 2001
- Operation: Air carrier
- Aircraft: N816NK
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49140
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Control Panel
- Part number: 4034242934
- Part serial: 87110909
- Condition: Faulty
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA010847

## Discrepancy

FLL - FLT 139 - SPD/MACH BUTTON WILL NOT SWITCH WHEN PUSHED.  REMOVED AND REPLACED FLIGHT GUIDANCE CONTROL PANEL. (M)

---
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.