# SDR ASAA2013022794017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2013
- Submitted: March 1, 2013
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 15,583 hours, 4,717 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Location: Nr 2
- 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/ASAA2013022794017

## Discrepancy

FMC NR2, INOPERATIVE FFR SHOWED NUMEROUS OCCURRENCES OF FMC DATA FAIL.  ACFT GROUNDED. PERFORMED FMCS SYS BITE PROCEDURE REF FIM 34-61, TASK 801.  INFLIGHT FAULTS SHOWED FMC FAULTS ONLY ON FLIGHT, LEG 5.  PERFORMED FMCS OPS TEST REF MM34-61-00.  TEST PASSED.  SENSOR TEST SHOWED NO CURRENT FAULTS, FMCS OK.

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