What was found
ATB - AFTER DEPARTURE FROM SYD, THE CREW ADVISED DISPATCHER THAT THEY HAD AN ANTI-ICE ISSUE ON THE NR 2 ENGINE AND WOULD RETURN TO SYD. THE FLIGHT LANDED W/O FURTHER INCIDENT. NO EMERGENCY DECLARED AND THEY DID NOT DO AN OVERWEIGHT LANDING. REMOVED AND REPLACED 3 EA SENSE ELEMENT IAW AMM 30-22-11-4 AND REQ TEST C/W SATS IAW AMM 30-22-11-5, PN-35512-61/SN-TAG1276636A (POS BANJO NR 2) PN-3551943102 (2 EA BANJO NR 4) SN-TAG00679239 (UPPER ELEMENT) SN-TAG00953446 (LOWER ELEMENT).