# SDR FDEA201203281167

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2012
- Submitted: April 2, 2012
- Operation: Air carrier
- Aircraft: [N884FD](https://openairdocs.org/aircraft/N884FD), registered now
- Make and model: Boeing 777-FS2
- Registry model: [Boeing 777-FS2](https://openairdocs.org/model/boeing-777-fs2) (OpenAirDocs)
- Aircraft serial: 37137
- Aircraft time: 4,840 hours, 633 cycles
- System (JASC): [3461 · Flight Management Computing Software System](https://openairdocs.org/jasc/3461)
- Part: Computer
- Condition: Malfunctioned
- 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/FDEA201203281167

## Discrepancy

FLIGHT PLAN WAS LOADED VIA UPLINK.  FLIGHT PLAN WAS CHECKED IN CAPTAINS PREFIGHT ON PLAN PAGE FOR PROPER SEQUENCING AND VERIFIED WITH F/O THROUGH CFM PROCEDURES.  WHEN ACFT WAS AT FL340 APPROACHING N45/W160, WHEN ACFT SEQUENCE POINT, NEXT POINT WAS N43/W150, ACFT WENT INTO RT 25 DEG BANK AND COURSE REFERENCE INDICATOR SHOWED 57L OF TRACK, MAGENTA LINE WAS STILL SHOWN WITH ACTIVE WAYPOINT N41/W140, USING CLASS 2 NAV PROCEDURES, NO PROBLEMS SHOWN IN FLIGHT PLAN.  CHECKED WITH GOC TO VERIFY  WAYPOINT LOAD. NO PROBLEMS IN FLIGHT PLAN.  FOUND MX MESSAGES 22-29240, 22-29320, 22-29310, 22-29134, 22-29133, AND 22-  29126.  PERFORMED FAULT ISOLATION FOR EA MX MESSAGE THRU THE MAT AND EACH MESSAGE SHOWED NOT ACTIVE OR NOT AT ALL.  THE FIM 22-31-00-2 FAULTS WERE INTERMITTENT.  PERFORMED FLIGHT MANAGEMENT COMPUTER SYS ADJUSTMENT AND TEST IN REF TO AMM 34-61-00-5.  NO DEFECTS NOTED.  ACFT OK FOR SERVICE.

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