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iconFlightAware > About FlightAware > FAQs > Aircraft Equipment Suffixes

When providing aircraft type on a flight plan, pilots/operators are required to include information about the on-board, certified equipment using an identifier code as a suffix to the equipment type. For example, "B739/J" means a Boeing 737-900 with "Flight Management System (FMS) with DME/DME and IRU position updating and RVSM."

Suffix Equipment
No DME
/X No Transponder
/T Transponder (No Mode C)
/U Transponder (Mode C)
DME
/D No Transponder
/B Transponder (No Mode C)
/A Transponder (Mode C)
TACAN Only
/M Transponder
/N Transponder (No Mode C)
/P Transponder (Mode C)
RNAV
/Y LORAN, VOR/DME, or INS with no transponder
/C LORAN, VOR/DME, or INS with transponder (No Mode C)
/I LORAN, VOR/DME, or INS with transponder (Mode C)
Advanced RNAV (With Transponder)
/E Flight Management System (FMS) with DME/DME and IRU position updating
/F Flight Management System (FMS) with DME/DME position updating
/G Global Navigation Satellite System (GNSS), including GPS or WAAS,
with enroute and terminal capability.
/R Required Navigational Performance. The aircraft meets the RNP type
prescribed for the route segment(s), route(s) and/or area concerned.
Reduced Vertical Separation Minimum (RVSM)
/J /E with RVSM
/K /F with RVSM
/L /G with RVSM
/Q /R with RVSM
/W RVSM