Jfk tower controller reported possible issues with similar sounding call sign aircraft on final.

Attributes
ACN	1644363
Time
Date	201905
Local Time Of Day	1201-1800
Place
Locale Reference	JFK.Airport
State Reference	NY
Environment
Light	Daylight
Aircraft 1
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Other Instrument Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Other Instrument Approach
Flight Plan	IFR
Person 1
Function	Other / Unknown
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 2
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

Aircraft X inbound landing runway 4R; followed immediately by aircraft Y also landing runway 4R. Very similar sounding call signs; including both being heavy aircraft. This creates a very unsafe situation; especially since both landing aircraft need to hold short of the inboard runway and one of the aircraft could have easily taken the crossing instruction for the other aircraft.advise airlines of the situation so they might change accordingly.

Original NASA ASRS Text

Title: JFK Tower Controller reported possible issues with similar sounding call sign aircraft on final.

Narrative: Aircraft X inbound landing Runway 4R; followed immediately by Aircraft Y also landing Runway 4R. Very similar sounding call signs; including both being heavy aircraft. This creates a very unsafe situation; especially since both landing aircraft need to hold short of the inboard runway and one of the aircraft could have easily taken the crossing instruction for the other aircraft.Advise airlines of the situation so they might change accordingly.

Data retrieved from NASA's ASRS site 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.