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two areas. The small aircraft and helicopter books contain all ADs applicable to small aircraft (12,500 pounds or less maximum certificated takeoff weight) and ADs applicable to all helicopters. The large aircraft books contain all ADs applicable to large aircraft. 

For current information on how to order paper copies of AD books and the AD Biweekly, visit the FAA online regulatory and guidance library at: http://rgl.faa.gov. 

## Aircraft Owner/Operator Responsibilities 

The registered owner/operator of an aircraft is responsible for: 

• Having a current Airworthiness Certificate and a Certificate of Aircraft Registration in the aircraft. 

• Maintaining the aircraft in an airworthy condition, including compliance with all applicable ADs and assuring that maintenance is properly recorded. 

• Keeping abreast of current regulations concerning the operation and maintenance of the aircraft. 

• Notifying the FAA Aircraft Registry immediately of any change of permanent mailing address, of the sale or export of the aircraft, or of the loss of the eligibility to register an aircraft. (Refer to 14 CFR, part 47, section 47.41.) 

• Having a current Federal Communications Commission (FCC) radio station license if equipped with radios, including emergency locator transmitter (ELT), if operated outside of the United States. 

## Chapter Summary 

Knowledge of an aircraft’s AFM/POH and documents, such as ADs, provide pilots with ready access to pertinent information needed to safely fly a particular aircraft. By understanding the operations, limitations, and performance characteristics of the aircraft, the pilot can make educated flight decisions. By learning what preventive maintenance is allowed on the aircraft, a pilot can maintain his or her aircraft in an airworthy condition. The goal of every pilot is a safe flight. Flight manuals and aircraft documentation are essential tools used to reach that goal. 

