B737-700
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 307
Distraction; Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented; Flight Crew Returned To Clearance
Aircraft; Human Factors
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.
B737-700 Captain reported an FMC discontinuity shortly after takeoff from EWR that led to a track deviation on the NEWARK1 SID.