These terms are used throughout this guide and in the Safety Publications Tool application:
Acronym
|
Definition
|
AD
|
Airworthiness Directive, an AD which becomes effective 14 days after the date of issue
|
ADR
|
Airworthiness Directive Recommendation
|
E AD
|
Emergency Airworthiness Directive, an AD which becomes effective two days after the date of issue
|
P AD
|
Proposed Airworthiness Directive
|
S IB
|
Safety Information Bulletin
|
SD
|
Safety Directive
|
P SD
|
Proposed Safety Directive
|
|
TC
|
Type Certificate
|