Federal Aviation Administration July 18, 2013 – Federal Register Recent Federal Regulation Documents

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-700-1A11 airplanes. This proposed AD was prompted by a report that certain lanyards for the passenger oxygen masks are longer than the specified length, possibly leading to inactive oxygen masks in an emergency. This proposed AD would require replacing certain oxygen mask lanyards. We propose this AD to detect and correct lanyards of incorrect length, which might not activate the flow of oxygen in an emergency, resulting in injury to passengers.

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 727-200 and 727-200F series airplanes. This proposed AD is intended to complete certain mandated programs intended to support the airplane reaching its limit of validity (LOV) of the engineering data that support the established structural maintenance program. This proposed AD would require a one-time inspection for cracking of the pressure floor of both main wheel wells, and related investigative and corrective actions if necessary; and would require modifying the pressure floor of both main wheel wells. We are proposing this AD to prevent fatigue cracking in the pressure floor of the main wheel wells, which could lead to rapid loss of cabin pressurization.

This notice concerns a waiver to Scaled Composites, LLC (Scaled) from the requirements of 14 CFR 437.29 and 437.55(a) to provide the FAA a hazard analysis that identifies, mitigates, and verifies and validates mitigation measures for hazards created by software and human error. The FAA finds that a waiver is in the public interest and will not jeopardize public health and safety, safety of property, and national security and foreign policy interests of the United States.