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An md-80 flight crew reported a malfunctioning FMS to ATC; and they flew VOR-based navigation to destination.
| Attributes | |
| ACN | 1005741 |
| Time | |
| Date | 201204 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZLA.ARTCC |
| State Reference | CA |
| Aircraft 1 | |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Commercial |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
Shortly after departure; talking to lax center got an 'rnp' flag in both pfd's. During our evaluation of the problem and verifying our position; lax center called and questioned our position and gave us a heading. Informed ATC our FMS wasn't working properly and changed our flight plan designation.
Original NASA ASRS Text
Title: An MD-80 flight crew reported a malfunctioning FMS to ATC; and they flew VOR-based navigation to destination.
Narrative: Shortly after departure; talking to LAX Center got an 'RNP' flag in both PFD's. During our evaluation of the problem and verifying our position; LAX Center called and questioned our position and gave us a heading. Informed ATC our FMS wasn't working properly and changed our flight plan designation.
Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.