AMTStandards.orgAviation maintenance

Tricresyl phosphate (TCP)

A chemical compound, (CH3C6H4O)3PO, used in aviation gasoline to assist in scavenging the lead deposits left from the tetraethyl lead.

Aviation Maintenance Technician Handbook — Airframe, p. G-37

Also defined in 1 more source

A colorless, combustible compound, (CH3C6H4O)3PO, that is used as a plasticizer in aircraft dope and an additive in gasoline and lubricating oil. TCP aids in scavenging lead deposits left in the cylinders when leaded fuel is burned.

Aviation Maintenance Technician Handbook — Powerplant, p. G-28