# SDR ASAA2015091013021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2015
- Submitted: September 15, 2015
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 32,537 hours, 9,734 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Contaminated
- Location: Cockpit
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015091013021

## Discrepancy

PROGRAM BUTTON ON CAPTAIN'S FMC/CDU TAKES EXTRAORDINARY EFFORT TO ACTIVATE. ACFT GROUNDED. UPON INITIAL EVALUATION, FOUND THE PROGRAM BUTTON TO FUNCTION NORMALLY AND TAKES NO MORE EFFORT THAN THE F/O'S.  CLEANED WHAT APPEARS TO BE SOFT DRINK RESIDUE FROM THE CDU KEYS.  CDU FUNCTIONS NORMALLY, REF MM 34-61-01.

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