CL-600/601/604 Anti-Ice SAIB NM-11-51

Introduction
This Special Airworthiness Information Bulletin advises registered owners and operators of Bombardier, Inc. Model CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes that activation of the wing anti-ice system during taxi and take-off could trigger nuisance wing anti-ice failed messages which will activate the master caution and could result in a rejected takeoff.
Background
Numerous reports indicate that activation of the wing anti-ice system during taxi and take-off triggered nuisance wing anti-ice failed messages. Operation of the wing anti-ice system (WAI ON during final taxi and take-off) could cause the wing anti-ice L FAIL and/or R FAIL lights to come on, activating the master caution and possibly result in a rejected take-off. Bombardier, Inc. has issued service information to provide operators with guidelines for modifying the wing anti-ice system to eliminate the nuisance L(R) FAIL signal.

SAIB Attached