An ASI discovers that a Part 121 air carrier has been using an unapproved alternative navigation procedure for the past six months. The investigation reveals the procedure was developed due to a genuine safety need but was never formally approved. The MOST appropriate compliance tool is:
-
A
Emergency Revocation of the operator's certificate
-
B
Warning Notice or Letter of Correction if systemic safety management failure is not evident
-
C
Immediate suspension of all affected operations
-
D
Civil penalty at the maximum statutory rate