This document proposes the supersedure of an existing airworthiness directive (AD), applicable to all Aerospatiale Model ATR42300 and 320 series airplanes. The existing AD requires repetitive ultrasonic inspections to detect cracking of certain lugs on the main landing gear (MLG), replacement of cracked lugs with new or serviceable parts, and a

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to RollsRoyce (RR) plc. Spey 55515, 15H, 15N, and 15P turbofan engines, that requires modification of the low pressure (LP) turbine stage 2 nozzle guide vane (NGV) support ring seal assembly. This amendment is prompted by two instances of disk drive arm damage. In both cases,

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document makes a correction to Airworthiness Directive (AD) 20002109 applicable to Pratt & Whitney PW 2000 series turbofan engines that was published in the Federal Register on October 24, 2000 (65 FR 63542). The statements identifying AD 20002109 as superseding AD 990814, Amendment 3911120 (64 FR 17949, dated April 13, 1999), were

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all British Aerospace Model BAe ATP airplanes. This proposal would require revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate life limits for certain items and inspections to detect fatigue

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300 and A300600 series airplanes, that requires a high frequency eddy current (HFEC) inspection to detect cracking of the rear fittings of fuselage frame FR40 at stringer 27, and repetitive inspections or repair, as applicable. In lieu of accomplishing

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC8 series airplanes that have been converted from a passenger to a cargocarrying (``freighter'') configuration. This proposal would require, among other actions, modification of the main deck cargo door structure and

DEPARTMENT OF TRANSPORTATION : Treasury Department

This document proposes the supersedure of an existing airworthiness directive (AD) for Eurocopter Deutschland Model EC135 P1 and T1 helicopters that currently requires visual and dyepenetrant inspections for a cracked stator blade of the fenestron tail rotor (tail rotor). That AD also requires either stop drilling a cracked blade or, as necessary,

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the supersedure of an existing airworthiness directive (AD) for Eurocopter France Model AS350B, BA, B1, B2, and D; and AS355E, F, F1, F2, and N helicopters.

That AD currently requires inspecting the main gearbox suspension bidirectional cross beam (cross beam) for cracks, replacing the cross beam if a crack is found, and

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC8 series airplanes. This proposal would require a onetime inspection to determine the manufacturer of the circuit breakers, and corrective action, if necessary. This proposal is prompted by reports of smoke and

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document withdraws a notice of proposed rulemaking (NPRM) that would have applied to all LET, a.s. (LET) Model L420 airplanes. The proposed AD would have required you to revise the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. The proposed AD was the result of reports of inflight

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document publishes in the Federal Register an amendment adopting emergency Airworthiness Directive (AD) 20001651. The Federal Aviation Administration (FAA) previously sent emergency AD 20001651 to all known U.S. owners and operators of Wytwornia Sprzetu Komunikacyjnego (PZL ``WarszawaOkecie'') Model PZL104 Wilga 80 airplanes. This AD requires

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document revises an earlier proposed airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that would have required a onetime inspection to determine whether H11 steel bolts are installed as attach and support bolts at the trailing edge flap transmissions, and replacement of any H11 steel bolt with an Inconel

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain DG Flugzeugbau (DG Flugzeugbau) GmbH Model DG 800B sailplanes. The proposed AD would require you to measure and correct improper propeller drive belt tension. The proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain Fairchild Aircraft SA226 and SA227 series airplanes. The proposed AD would require you to replace the brake shuttle valves with parts of improved design; and would require you to install a shield over the hydraulic lines. The proposed AD is the result of

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain Raytheon Aircraft Company (Raytheon) Beech Models 1900, 1900C, and 1900D airplanes. The proposed AD would require you to modify the cockpit voice recorder (CVR) system. The proposed AD is the result of instances where the recording quality of the CVR in

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model MD11 series airplanes. This proposal would require an inspection to detect chafing or damage of the electrical wires leading to the terminal strips in the center accessory compartment (CAC) area; and corrective actions,

DEPARTMENT OF TRANSPORTATION : Treasury Department

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737200, 300, 400, and 500 series airplanes, that requires replacement of existing door handle mounting hub assemblies with new, improved hub assemblies. This amendment is prompted by reports of cracked or broken mounting hub assemblies for the interior

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment supersedes an existing airworthiness directive (AD) for Sikorsky Model S61 helicopters. That AD requires inspecting certain pylon upper and lower hinge web fittings (web fittings) for corrosion or a crack and either repairing certain web fittings or replacing any unairworthy web fittings with airworthy web fittings. That AD also

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Saab Model SAAB SF340A and SAAB 340B series airplanes. This proposal would require installation of a new circuit breaker and related wiring, and relocation of circuit breaker 12FG, if applicable. This action is necessary to prevent loss of the

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 737300, 400, and 500 series airplanes, that requires replacement of the existing autothrottle computer with a new, improved autothrottle computer. This amendment is prompted by reports of asymmetric thrust conditions during flight caused by irregular

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD11 series airplanes, that requires an inspection of the electrical wires routed above the door actuation cables for minimum .50inch clearance with the door in the open and closed position, damage due to chafing or electrical arcing, or damaged

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to all Lockheed Model 188A and 188C series airplanes, that requires a revision of the Airplane Flight Manual (AFM) to add procedures for donning the flightcrew oxygen masks when the cabin altitude warning horn is activated. The actions specified by this AD are intended to prevent

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain EMBRAER Model EMB135 and EMB145 series airplanes. This proposal would require replacement of certain brake control units (BCU) with new units. This action is necessary to prevent uncommanded application of 50 percent braking in one pair of

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all CASA Model CN235, CN235100, and CN235200 series airplanes. This proposal would require replacing the upper brackets in frames 33, 34, and 35, with improved brackets that are more fatigue resistant, and reinforcing frame 35. This action is necessary

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document corrects a typographical error that appeared in airworthiness directive (AD) 20001108, amendment 3911756, that was published in the Federal Register on June 1, 2000 (65 FR 34935). The typographical error resulted in a reference to an incorrect fuel specification. That AD is applicable to certain Boeing Model 747 and 767 series

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration