; and (2) not later than 180 days after the date of enactment of this section, and periodically thereafter, issue a bulletin to— (A) inform rotorcraft owners and operators of available modifications to improve fuel system crashworthiness; and (B) urge that such modifications be installed as soon as practicable. (c) Rule of construction Nothing in this section may be construed to affect the operation of a rotorcraft by the Department of Defense. . (b) Clerical amendment The analysis for chapter 447 of title 49, United States Code, is amended by adding at the end the following: 44738. Helicopter fuel system safety. . 575. Safety equipment storage facilities Section 47102(3) of title 49, United States Code, is amended by adding at the end the following: (P) Constructing storage facilities to shelter snow removal equipment or aircraft rescue and firefighting equipment that is owned by the airport sponsor and used exclusively to maintain safe airfield operations, up to the facility size necessary to accommodate the types and quantities of equipment prescribed by the FAA, regardless of whether Federal funding was used to acquire the equipment. . 576. Report on airline and passenger safety (a) Report Not later than 180 days after the date of enactment of this Act, the Administrator of the Federal Aviation Administration shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report on airline and passenger safety. (b) Contents The report required under subsection (a) shall include— (1) the average age of commercial aircraft owned and operated by United States air carriers; (2) the over-all use of planes, including average lifetime of commercial aircraft; (3) the number of hours aircraft are in flight over the life of the aircraft and the average number of hours on domestic and international flights , respectively; (4) the impact of metal fatigue on aircraft usage and safety