The Federal Register

2120-AA64

Mon, Apr 7 2008 11:00:00 GMT

The FAA is adopting a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation (HBC) Models B200, B200GT, B300, and B300C airplanes. This AD requires you to fabricate and install a placard incorporating information that limits operation when there is known or forecast icing and requires you to replace a section of the pneumatic supply tube for the tail deice system with a new tube of a different material. This AD results from reports of collapsed tail deice boot pneumatic supply tubes. We are issuing this AD to prevent collapsed pneumatic supply tubes, which could result in failure of the tail deice boots to operate. This failure could lead to loss of control in icing conditions.

Airworthiness Directives; Airbus Model A310 Airplanes

Mon, Apr 7 2008 11:00:00 GMT

We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

During routine visual inspection, a crack has been found in the wing MLG (main landing gear) rib 5 forward attachment lug on two A310 inservice aircraft. Laboratory examination of one of the cracked ribs confirmed that the crack is due to the presence of pitting corrosion in the forward lug holes. Also on both aircraft medium to heavy corrosion was found in the forward lugs on the opposite wing after removal of the bushes. This situation if not detected, could affect the structural integrity of the MLG attachment. * * *

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The proposed AD would require actions that are intended to address the unsafe condition desc

Airworthiness Directives; Boeing Model 747 Airplanes and Model 767 Airplanes Equipped With General Electric CF6-80C2

Mon, Apr 7 2008 11:00:00 GMT

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747 airplanes and Model 767 airplanes. This proposed AD would require revising the airplane flight manual to advise the flightcrew to use certain procedures during descent in certain icing conditions. This proposed AD results from reports of several in flight engine flameouts, including multiple dual engine flameout events and one total power loss event, in icecrystal icing conditions. We are proposing this AD to ensure that the flightcrew has the proper procedures to follow in certain icing conditions. These certain icing conditions could cause a multiple engine flameout during flight without the ability of the engines to be relit, and consequent forced landing of the airplane.

Airworthiness Directives; McDonnell Douglas Model MD-11 and MD- 11F Airplanes Equipped With General Electric CF6-80C2

Mon, Apr 7 2008 11:00:00 GMT

The FAA proposes to adopt a new airworthiness directive (AD) for certain McDonnell Douglas Model MD11 and MD11F airplanes. This proposed AD would require revising the airplane flight manual to advise the flightcrew to use certain procedures during descent in certain icing conditions. This proposed AD results from reports of several in flight engine flameouts, including multiple dual engine flameout events, in icecrystal icing conditions. We are proposing this AD to ensure that the flightcrew has the proper procedures to follow in certain icing conditions. These certain icing conditions could cause a multiple engine flameout during flight without the ability of the engines to be relit, and consequent forced landing of the airplane.

Airworthiness Directives; McDonnell Douglas Model 717-200 Airplanes

Mon, Apr 7 2008 11:00:00 GMT

We propose to adopt a new airworthiness directive (AD) for certain McDonnell Douglas Model 717200 airplanes. This proposed AD would require inspecting the drive assembly of the aft elevator standby loop for interference between the clevis and bolt of the bellcrank assembly, correct orientation of the pullpull cable clevis bolt, and excessive freeplay of the bellcrank assembly bearing, and corrective actions if necessary. This proposed AD would also require modifying the pullpull cable clevis in the drive assembly of the aft elevator standby loop for certain airplanes. This proposed AD results from a report of an aborted takeoff due to a control column disconnect. We are proposing this AD to prevent binding of the bolt that connects the cable 264A clevis to the bellcrank assembly against the adjacent (upper) clevis of the pullpull cable assembly. This binding condition could result in slow airplane rotation or a control column disconnect during takeoff and a runway excursion if takeoff must be a