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While conducting the first stages of an RNAV SID; the flight crew of a crj-200 suffered a short term track deviation when the first officer (PF) was unable to display RNAV guidance on his pfd and navigation displays. The captain; whose displays were normal; took over PF duties. They later determined that the first officer's nav source selector had been improperly selected.
| Attributes | |
| ACN | 1017484 |
| Time | |
| Date | 201206 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID ZZZZZ |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Commercial |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
During initial climb out; after calling for speed and navigation modes; I noticed 'FMS' was not appearing in the 'FMA' [flight mode annunciator]. I called for navigation mode again and that's when we noticed the FMS would not sequence to [first waypoint]. The captain informed ATC immediately that we were having an FMS issue and we received a heading and were asked to let them know when we could accept an RNAV clearance. I then noticed that I had no CDI (white needles) on my compass rose but the captain did. We transferred the FCC to the captain's side and then FMS mode worked fine. Once the captain had the controls I then spun the navigation source selector knob to change my navigation data source and it worked. My selector had been placed in between yellow and green needles so I had no needles. The practical result was an ever so slight lateral deviation on an RNAV SID.I will ensure I have the appropriate navigation data displayed before leaving the gate and definitely before takeoff. I am also surprised that the FMS will load correctly and execute without both navigation source selector knobs in white needles.
Original NASA ASRS Text
Title: While conducting the first stages of an RNAV SID; the flight crew of a CRJ-200 suffered a short term track deviation when the First Officer (PF) was unable to display RNAV guidance on his PFD and navigation displays. The Captain; whose displays were normal; took over PF duties. They later determined that the First Officer's Nav Source Selector had been improperly selected.
Narrative: During initial climb out; after calling for SPEED and NAV modes; I noticed 'FMS' was not appearing in the 'FMA' [Flight Mode Annunciator]. I called for NAV mode again and that's when we noticed the FMS would not sequence to [first waypoint]. The Captain informed ATC immediately that we were having an FMS issue and we received a heading and were asked to let them know when we could accept an RNAV clearance. I then noticed that I had no CDI (white needles) on my compass rose but the Captain did. We transferred the FCC to the Captain's side and then FMS mode worked fine. Once the Captain had the controls I then spun the NAV Source Selector knob to change my NAV data source and it worked. My selector had been placed in between yellow and green needles so I had no needles. The practical result was an ever so slight lateral deviation on an RNAV SID.I will ensure I have the appropriate navigation data displayed before leaving the gate and definitely before takeoff. I am also surprised that the FMS will load correctly and execute without both NAV source selector knobs in white needles.
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.