Department of Transportation November 27, 2006 – Federal Register Recent Federal Regulation Documents

This action amends Jet Route 510 (J-510), and Colored Federal Airways Amber 2 (A-2), Amber 15 (A-15), and Green 8 (G-8), Alaska. Specifically, the FAA is re-designating J-510 as J-512 because of duplication with a Canadian Jet Route number, causing problems with the Flight Data processors during route validation at the Anchorage Air Route Traffic Control Center. Additionally, portions of A-2, and A-15, and G-8 are discontinuous between fixes, causing flight processing software problems, and will be re-designated.

The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 767 airplanes. This AD requires repetitive detailed and high frequency eddy current (HFEC) inspections of the station (STA) 1809.5 bulkhead for cracking and corrective actions if necessary. This AD results from fatigue cracks found in the forward outer chord and horizontal inner chord at STA 1809.5. We are issuing this AD to detect and correct cracking in the bulkhead structure at STA 1809.5, which could result in failure of the bulkhead structure for carrying the flight loads of the horizontal stabilizer, and consequent loss of controllability of the airplane.