ATTOP International supports engines manufactured by the following companies:
GE: CF6-6, CF6-50, CF6-80, CT7

CFMI: CFM56-2, -3, -5, -7

Pratt & Whitney: JT8D, JT9D, PW2000, PW4000

Rolls Royces: RB211

Honeywell: TPE331, TFE731

All materials supplied by ATTOP are traceable to the OEMs, FAA 121/129 carriers, FAA 145 repair stations with the applicable FAA 8130, JAA Form 1 and/or other airworthiness documentations.