What is the limit for ETOPS?
What is the limit for ETOPS? New regulation 14 CFR 121.633 maintains current standards for up to 180 minutes ETOPS authority. It requires that ETOPS diversion times shall not exceed the time limit, minus 15 minutes, for that airplane type's most time-limited system, which typically is cargo fire suppression.
What is the 123 rule in aviation?
1 hour before to 1 hour after your ETA (at the listed destination), the ceiling will be at least 2,000' AGL, and the visibility will be at least 3 SM. It's called the 1-2-3 rule; this is the easiest way to remember this section.
What is the 12 5 rule in aviation?
The Twelve-Five Standard Security Program (TFSSP) outlines requirements for FAA Part 135 certificated carriers offering commercial air transport using aircraft with a maximum certificated takeoff weight between 12,500 pounds (5,670 kg) and 100,309.3 pounds (45,500 kg).