Federal Aviation Administration December 26, 2006 – Federal Register Recent Federal Regulation Documents

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This proposed AD would require repetitive inspections of the bolts that attach the exhaust nozzle to the aft engine flange to determine if any bolts are missing or fractured, and replacement of the existing bolts with new, improved bolts. This proposed AD results from reports of the engine exhaust nozzle and fairing departing from the airplane in flight due to missing attachment bolts. We are proposing this AD to detect and correct missing or fractured attachment bolts, which could lead to the loss of an engine exhaust nozzle during flight and consequent structural damage to the airplane and hazard to people or property on the ground. Damage to the airplane could cause the airplane to yaw and result in reduced controllability of the airplane.

The FAA is adopting a new airworthiness directive (AD) for certain Alpha Aviation Model R2160 airplanes. This AD requires you to inspect the fuel pressure indication system for leakage at the end of the adapter in the fuel pressure indication system. This AD results from the possibility of fuel leakage at the end of the adapter in the fuel pressure indication system. We are issuing this AD to detect, correct, and prevent fuel leaks in the fuel pressure indicating system. This failure could allow fuel to leak near the exhaust manifold and lead to a fire.