B767 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Confusion; Human-Machine Interface; Situational Awareness
Aircraft Equipment Problem Less Severe
Flight Crew Overcame Equipment Problem
Aircraft; Procedure
Once again on the CPT 3G departure off of 27L at EGLL; as we approached the (INTC) waypoint; the next waypoint (D257G) went white and we received a scratchpad message 'not on intercept heading'; . This is the 3rd time in 6 weeks that has occurred in 3 different aircraft; all on the CPT 3G departure off of 27L. I have also performed 3 takeoffs off of 27R using the CPT 3F departure (with a much larger intercept turn) and have never had this occur.Speaking with other pilots in London; they also have had this occur but never thought to file an FSAP report.
While executing the Compton 3G SID off runway 27L at EGLL; a crew noticed an FMS scratchpad message 'not on intercept heading' while aircraft appeared to be on course per the SID.