Gulfstream III (G1159A)
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Engineer; Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 125; Flight Crew Total 7100; Flight Crew Type 680
Communication Breakdown
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors
While maneuvering the aircraft to line up our run-in line that was on a 190 heading; we made a check turn to the north. The Controller asked us our intentions and we politely informed him of our desires. He stated that we needed to notify him of any maneuvers like that in the future. We have since passed this information on to the rest of our pilot cadre.
Gulfstream III First Officer reported accidental deviation from a clearance that resulted in an ATC alert.