Medium Transport
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Distraction
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Flight Crew Overcame Equipment Problem
Aircraft; Environment - Non Weather Related
Upon departure on 4L in JFK; we were in a turn at 1.5 DME off the JFK VOR to 100. We were established on the 100 heading for less than one minute and were given direct WAVEY. We were climbing at 250 kt. at approximately 2500 ft. per minute and turning direct WAVEY. We received a 'wup wup pull up terrain terrain' passing through 3200 ft. We only received this aural warning one time. Our MSA was 2000 ft. in that quadrant. Since we were climbing and the warning went away; no evasive action was taken. The MFD remained normal with no terrain overlay for escape guidance. After the event we believed it was a possible 5G event.
Air carrier Captain reported a single terrain warning during initial climb despite being well clear of terrain. Captain cited 5G interference as possibly contributing.