Federal Aviation Administration May 11, 2005 – Federal Register Recent Federal Regulation Documents

The FAA proposes to adopt a new airworthiness directive (AD) for all airplanes equipped with Aero Advantage ADV200 series (part numbers ADVPL211CC and ADVPL212CW) vacuum pumps installed under supplemental type certificate number SA10126SC, through field approval, or other methods. This proposed AD would require you to remove any affected vacuum pump and related monitor system, remove the applicable airplane flight manual supplement (AFMS) and placard, and install an FAA-approved vacuum pump other than the affected part numbers. This proposed AD results from several reports of pump chamber failure. We are issuing this proposed AD to correct problems with the vacuum pump before failure or malfunction during instrument flight rules (IFR) flight that can lead to loss of flight instruments critical for flight. The loss of flight instruments could cause pilot disorientation and loss of control of the aircraft.

The FAA is adopting a new airworthiness directive (AD) for all Dornier Model 328-300 series airplanes. This AD requires installing an additional mounting angle for the respective de-icing pipes at rib 9 in the leading edge area of the left- and right-hand wings. This AD is prompted by chafed de-icing lines in the wing leading edge area. We are issuing this AD to prevent chafing of the de-icing lines, which could result in a reduction in functionality of the anti-ice system, and possibly reduced controllability and performance of the airplane in icing conditions.