# SDR AALA201907079020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2019
- Submitted: July 8, 2019
- Operation: Air carrier
- Aircraft: [N994NN](https://openairdocs.org/aircraft/N994NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33248
- Aircraft time: 9,561 hours, 3,791 cycles
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201907079020

## Discrepancy

AIRCRAFT NOT GROUNDED: PILOT REPORTS DURING CRUISE, BOTH FMC PROMPTS DISAPPEARED IN BOTH CDUS MAP DISPLAYS DISAPPEARED ON BOTH PFDS FOR ABOUT 1 MINUTE. THEN RETURNED TO NORMAL. MAINTENANCE ACCOMPLISHED FIM TASK 31-63-00-810-809. NO FAILURES IN CURRENT STATUS OF CDS BITE. NO FAILURES FOUND IN FMC BITES. OPS NORMAL AT THIS TIME.

---
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.