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B737-700 captain reported an FMC discontinuity shortly after takeoff from ewr that led to a track deviation on the NEWARK1 SID.
| Attributes | |
| ACN | 1007692 |
| Time | |
| Date | 201204 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | EWR.Airport |
| State Reference | NJ |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 307 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
We were to depart 22R at ewr on the newark 1 departure which we loaded into the FMC. LNAV was appropriately armed before takeoff. The departure calls for basically runway heading to 420 ft; then left turn to 190; then right turn to 220 degrees. Right after reaching 420 ft; LNAV disengaged and a route discontinuity appeared. Because of this distraction; I was late in my turn to 190 and subsequent turn-back to the right to 220. I have never seen this happen before. I should have just ignored the discontinuity immediately and hand flown the departure from memory sooner. I will be on the lookout for this in the future with LNAV engaged for takeoff.
Original NASA ASRS Text
Title: B737-700 Captain reported an FMC discontinuity shortly after takeoff from EWR that led to a track deviation on the NEWARK1 SID.
Narrative: We were to depart 22R at EWR on the NEWARK 1 Departure which we loaded into the FMC. LNAV was appropriately armed before takeoff. The departure calls for basically runway heading to 420 FT; then left turn to 190; then right turn to 220 degrees. Right after reaching 420 FT; LNAV disengaged and a route discontinuity appeared. Because of this distraction; I was late in my turn to 190 and subsequent turn-back to the right to 220. I have never seen this happen before. I should have just ignored the discontinuity immediately and hand flown the departure from memory sooner. I will be on the lookout for this in the future with LNAV engaged for takeoff.
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.