Results
2006-07-21: The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 757 airplanes. This AD requires repetitive inspections for corrosion and cracking of the midspar fittings in the nacelle struts, and corrective actions if necessary. This AD also provides an optional terminating action for the repetitive inspections. This AD results from reports of corrosion and cracking on midspar fittings on the nacelle struts of several Boeing Model 757 airplanes. We are issuing this AD to detect and correct cracking in the midspar fittings of the nacelle struts, consequent reduced structural integrity of the struts, and possible separation of an engine and strut from the airplane.
2006-07-14: The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 767-200, -300, and -300F series airplanes. This AD requires verifying the part and serial numbers of certain main landing gear (MLG) bogie beam pivot pins; replacing those pivot pins with new or overhauled pivot pins if necessary; and ultimately replacing all pivot pins with new, improved pivot pins. This AD also requires repetitive lubrications and inspections of the pivot pin, and related investigative and corrective actions if necessary. This AD results from reports indicating that numerous fractures of the MLG bogie beam pivot pin have been found and that some pivot pins may have had improper rework during manufacture. We are issuing this AD to prevent fracture of the MLG bogie beam pivot pin, which could lead to possible loss of the MLG truck during takeoff or landing and consequent loss of control of the airplane.
2006-07-06: The FAA adopts a new airworthiness directive (AD) for certain Cirrus Design Corporation (CDC) Models SR20 and SR22 airplanes. This AD requires you to inspect the fuel line and wire bundles for any chafing damage; replace any damaged fuel line and repair any damaged wires or sheathing of the wire harness if any chafing damage is found; and install (to prevent any chafing damage to the fuel line and wire bundles) the forward loop clamp, fuel line shield, aft loop clamp, and anti-chafe tubing. This AD results from reports of fuel line leaks resulting from wire chafing on the fuel lines. We are issuing this AD to detect, correct, and prevent damage to the fuel line and wire bundles, which could result in fuel leaks. This failure could lead to unsafe fuel vapor within the cockpit and possible fire.
2006-05-11 R1: The FAA is revising an existing airworthiness directive (AD), which applies to certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. The existing AD currently requires revising the airworthiness limitations section of the Instructions for Continued Airworthiness of the maintenance requirements manual (MRM) by incorporating procedures for repetitive functional tests of the pilot input lever of the pitch feel simulator (PFS) units. That AD also requires new repetitive functional tests of the pilot input lever of the PFS unit, and corrective actions if necessary; and after initiating the new tests, requires removal of the existing procedures for the repetitive functional tests from the MRM. This AD retains the requirements of the existing AD and further clarifies the requirements of the AD. This AD results from a report that the shear pin located in the input lever of two PFS units failed due to fatigue. We are issuing this AD to prevent undetected failure of the shear pin of both PFS units simultaneously, which could result in loss of pitch feel forces and consequent reduced control of the airplane. DATES: The effective date of this AD is March 27, 2006. On March 27, 2006 (71 FR 12277, March 10, 2006), the Director of the Federal Register approved the incorporation by reference of a certain publication. On February 13, 2004 (69 FR 4234, January 29, 2004), the Director of the Federal Register approved the incorporation by reference of Bombardier Temporary Revision 2B-1784, dated October 24, 2003, to the CL-600-2B19 Canadair Regional Jet Maintenance Requirements Manual, Part 2, Appendix B, "Airworthiness Limitations.'' We must receive any comments on this AD by May 30, 2006.
2006-07-01: The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER Model EMB-135 airplanes and Model EMB-145, -145ER, - 145MR, -145LR, -145XR, -145MP, and -145EP airplanes. This AD requires replacing the horizontal stabilizer control unit (HSCU) with a modified and reidentified or new, improved HSCU. For certain airplanes, this AD also requires related concurrent actions as necessary. This AD is prompted by reports of loss of the pitch trim system due to a simultaneous failure of both channels of the HSCU. We are issuing this AD to prevent loss of pitch trim and reduced controllability of the airplane.
2006-05-06: The FAA is superseding three existing airworthiness directives (ADs) that apply to certain Boeing Model 747 airplanes. The existing ADs currently require repetitive inspections of the body station (BS) 2598 bulkhead, and corrective action if necessary. This new AD adds a requirement to modify the bulkhead, including a one-time inspection and corrective action if necessary, which terminates certain repetitive inspections. This AD also requires a post-modification inspection of the modified area. This AD results from new reports of cracking in all three areas that require inspection in accordance with the existing ADs. We are issuing this AD to prevent fatigue cracking of the BS 2598 bulkhead structure, which could result in inability of the structure to carry horizontal stabilizer flight loads, and loss of controllability of the airplane.
2006-03-09: The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A330-200 and -300 series airplanes, A340-200 and - 300 series airplanes, and A340-541 and -642 airplanes. This AD requires repetitive borescope inspections of the left and right fuel tanks of the trimmable horizontal stabilizers (trim tanks) for detached or damaged float valves; related investigative/corrective actions if necessary; and the eventual replacement of all float valves in the left and right trim tanks with new, improved float valves, which terminates the need for the repetitive inspections. This AD also requires repetitive replacement of certain new, improved float valves. This AD results from reports of detached and damaged float valves in the trim tanks. We are issuing this AD to prevent, in the event of a lightning strike to the horizontal stabilizer, sparking of metal parts and debris from detached and damaged float valves, or a buildup of static electricity, which could result in ignition of fuel vapors and consequent fire or explosion.
2006-05-04: The FAA is superseding an existing airworthiness directive (AD) for General Electric Company (GE) CF34-1A, -3A, -3A1, -3A2, -3B, and -3B1 turbofan engines. That AD currently requires a onetime inspection, and if necessary replacing certain fan disks for electrical arc-out indications. That AD also reduces the life limit of certain fan disks. This AD requires the same actions and adds one disk part number (P/N) and serial number (SN) to the affected fan disks. This AD results from an error in the first part number and serial number listed in Table 1 of the original AD. We are issuing this AD to prevent rupture of the fan disk due to cracks that initiate at an electrical arc-out, which could result in an uncontained failure of the engine.
2006-03-12: The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This AD requires an inspection for chafing of certain wire bundles located above the center fuel tank, corrective actions if necessary, and replacement of wire bundle clamps with new clamps. This AD also requires an inspection for damage to the fuel vapor barrier area located below the wire bundles, and corrective action if necessary. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent chafed wire bundles near the center fuel tank, which could cause electrical arcing through the tank wall and ignition of fuel vapor in the fuel tank, and result in a fuel tank explosion.
2006-03-16: The FAA is adopting a new airworthiness directive (AD) for all Hamburger Flugzeugbau GmbH Model HFB 320 HANSA airplanes. This AD requires revising the Limitations section of the HFB 320 Hansa Airplane Flight Manual to prohibit operation of the airplane past its designed life limit for the primary structure, which is 15,000 flight hours or 15,000 fight cycles, whichever occurs first; and to require contacting the FAA for approval of analysis that the airplane is safe to continue operation beyond the designed life limit. This AD results from a report that all airplanes in operation might have met or exceeded the designed life limit for the primary structure. We are issuing this AD to prevent continued operation of an airplane beyond its designed life limit for the primary structure, which could result in reduced structural integrity of the airplane.
2006-03-07: The FAA is adopting a new airworthiness directive (AD) for certain Fokker Model F.28 Mark 0070 and 0100 airplanes. This AD requires modifying the passenger door and installing new placards. This AD results from reports of the airstairs-type passenger door opening during flight. We are issuing this AD to prevent rapid decompression of the airplane, or ejection of a passenger or crew member out the door during flight.
2006-03-02: The FAA is adopting a new airworthiness directive (AD) for certain Dassault Model Falcon 2000 and Falcon 2000EX airplanes. For all airplanes, this AD requires, among other actions, doing an inspection for damage of the feeder cables, and corrective actions if necessary; and installing a protective plate on the feeder cables. For certain airplanes, this AD also requires re-routing the wiring on the cockpit protector; drilling holes in the cockpit protector; and clamping the feeder cables; as applicable. This AD results from a drawing review and further associated inspections that highlighted a potential chafing risk between the third crew member's oxygen mask box and feeder cables routed in the area. We are issuing this AD to prevent chafing between the subject oxygen mask box and the adjacent feeder cables, which could generate smoke or fire in the cockpit that could be fanned by oxygen leakage from the oxygen mask box.
2006-02-02: The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes. This AD requires installing a rivet and washer in the hole of the upper frame of the auxiliary power unit (APU) firewall. This AD results from a report indicating that, during production, a pinhole was left open at the upper frame of the APU firewall. We are issuing this AD to ensure that the APU compartment is isolated from the rest of the airplane in the event of an APU fire.
2006-01-04: The FAA is superseding an existing airworthiness directive (AD), which applies to certain Raytheon airplanes identified above. That AD currently requires a visual inspection to determine whether adequate clearance exists between the fan venturi motor casing and the adjacent equipment, and adjustments, if necessary; and a visual inspection to detect signs of overheating, degradation of insulating materials, and ingestion of debris into the motor, and replacement of discrepant parts with serviceable parts. This new AD instead requires that operators replace the fan venturi with a new or modified part. This AD results from reports that the fan venturi overheated and produced smoke while the airplane was on the ground. We are issuing this AD to prevent heat and fire damage to equipment adjacent to the fan venturi, which could result in smoke in the cabin and/or burning equipment.
2006-01-02: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas transport category airplanes, that requires an inspection of the upper lock link assembly of the nose landing gear (NLG) to determine the manufacturer, repetitive eddy current inspections for cracking, and modification or replacement if necessary. This AD also provides for optional terminating action for the repetitive inspections. The actions specified by this AD are intended to prevent fracture of the upper lock link assembly of the NLG, which could result in failure of the NLG to extend following a gear-down selection, and consequent gear-up landing, structural damage, and possible injury to passengers and crew. This action is intended to address the identified unsafe condition.
2005-26-53: The FAA is adopting a new airworthiness directive (AD) for all Pacific Aerospace Corporation (PAC) Ltd. Model 750XL airplanes. This AD contains the same information as emergency AD 2005-26-53 and publishes the action in the Federal Register. This AD requires you to insert text into the Limitations Section of the Airplane Flight Manual (AFM) that reduces the maximum takeoff weight from 7,500 pounds to 7,125 pounds. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for New Zealand. We are issuing this AD to reduce the maximum takeoff weight that will allow wing ultimate load requirements to be met. If wing ultimate load requirements are not met, wing failure could result and subsequent loss of control of the airplane.
2006-01-01: The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace LP Model Gulfstream 100 airplanes; and Model Astra SPX, and 1125 Westwind Astra airplanes. This AD requires a one-time inspection for discrepancies of the nose wheel steering assembly of the landing gear, installing a warning placard on each nose landing gear door, and corrective action if necessary. This AD results from reports of failure of the steering brackets of the nose wheel steering assembly, and in one incident, loss of steering control. We are issuing this AD to find and fix these discrepancies, which could result in loss of steering control and consequent reduced controllability of the airplane.
2005-25-01: The FAA is adopting a new airworthiness directive (AD) for all EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes. This AD requires modifying electrical harnesses located at the left- and right-hand wing roots; and re-routing and modifying the harness of the right-hand outboard flap actuator. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent chafed electrical harnesses, which could result in a potential source of ignition for fuel vapors near a fuel tank and consequent fire or fuel tank explosion.
2005-26-14: The FAA adopts a new airworthiness directive (AD) for all BURKHARDT GROB LUFT-UND RAUMFAHRT GmbH & CO KG (Burkhardt Grob) Model G103 TWIN ASTIR sailplanes. This AD requires you to replace the elevator lever, part number (P/N) 103-3521, with an improved design part, P/N 103-3523. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to prevent cracks in the elevator lever, which could cause the elevator lever to fail. This failure could result in loss of control of the sailplane.
2005-26-11: The FAA adopts a new airworthiness directive (AD) for certain DG Flugzeugbau GmbH Models DG-800B and DG-500MB sailplanes. This AD requires you to modify the connection of the starter ring gear to the lower drive belt pulley adapter. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to prevent the bolts currently used to connect the starter ring gear to the drive belt pulley adapter from shearing off and the bolt heads falling into the engine compartment. Failure of this connection could render the engine inoperative. Consequently, this failure could lead to loss of control of the sailplane.
2005-25-27: The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A300 B2 series airplanes, A300 B4-103 and B4-203 airplanes, and A310-203 airplanes. This AD requires a one-time inspection for missing or incorrect rivets in the structural area affected by conversion from passenger to freight configuration, and corrective action if necessary. This AD results from a report of rivets missing from the passenger-to-freight converted area. We are issuing this AD to prevent structural failure of the main deck and main deck cargo door areas.
2005-26-01: The FAA is adopting a new airworthiness directive (AD) for certain Dassault Model Falcon 2000 airplanes. This AD requires an inspection for the presence of fail-safe pins, nuts, and washers on each engine, and replacement of the fail-safe fastener assembly with a new assembly if necessary. This AD results from a report of a missing pin of a fail-safe fastener. We are issuing this AD to prevent reduced structural integrity of an engine mount due to a missing pin of a fail- safe fastener, and possible separation of an engine from the airplane during flight.
2005-25-25: The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 767-200, -300, and -300F series airplanes. This AD requires replacing the aileron control override quadrant with a modified unit. This AD results from a report of the seizing of the input override mechanism bearings of the lateral central control actuator on affected airplanes. We are issuing this AD to prevent corrosion of the input override mechanism bearings of the lateral central control actuator, which, in the event of a subsequent jam in the pilot's aileron control system, could result in failure of the aileron override system and consequent reduced lateral controllability of the airplane.
2005-25-19: The FAA is adopting a new airworthiness directive (AD) for certain Airbus transport category airplanes. This AD requires repetitive eddy current inspections for cracks of the stiffener fittings of the fuselage at frame (FR) 12A, and corrective actions if necessary. This AD also provides a terminating action for the inspections. This AD results from reports of cracks on the upper attachment fitting of the stiffener fitting at FR12A. We are issuing this AD to prevent failure of the stiffener fittings, which could result in the reduced structural integrity of the floor and rods around FR 12A.
2005-25-06: The FAA is superseding an existing airworthiness directive (AD), which applies to all Fokker Model F27 Mark 050 series airplanes. The existing AD currently requires using a torque wrench to repetitively tighten the screws for the attachment of the leading edges of the elevators, rudder, and ailerons. This new AD requires the same actions as those of the existing AD, but with reductions in the intervals for repetitive actions. This AD also requires modifying the elevator, rudder, and aileron leading edge attachments with additional locking devices. This AD results from a report of an in-flight vibration caused by a loose leading edge section of the elevator. We are issuing this AD to prevent binding of the flight controls caused by loose attachment screws, which could result in reduced controllability of the airplane. DATES: This AD becomes effective December 27, 2005. The Director of the Federal Register approved the incorporation by reference of certain publicationslisted in the AD as of December 27, 2005. On January 21, 2000 (65 FR 695, January 6, 2000), the Director of the Federal Register approved the incorporation by reference of certain other publications listed in the regulations. We must receive comments on this AD by February 10, 2006.