631 RULES: Sikorsky,
This amendment adopts a new airworthiness directive (AD) for [[Page 39075]]
Sikorsky Model S76A helicopters. This AD requires inspecting the air
conditioning system at specified intervals until installing a soft
start assembly retrofit kit to prevent a continuous flow of current
through the softstart resistor. This amendment is prompted by a report
632 RULES: Boeing,
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 737600, 700, and 800 series airplanes. This action requires installation of placards on the P31 panel. This action is necessary to prevent loss of communication between the flight crew and Air Traffic Control; this situation could result in the
633 RULES: Boeing,
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that requires inspections to detect cracking of the front spar web of the wing, and corrective action, if necessary. The actions specified by this AD are necessary to detect and correct fatigue cracking of the front spar web, which
634 PROPOSED RULES: Turbomeca S.A.,
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Turbomeca S.A. Arrius Models 2B, 2B1, and 2F turboshaft engines. This proposal would require the replacement of the right injector half manifold, left injector half manifold, and privilege injector pipe with the engine installed on the helicopter. This
635 PROPOSED RULES: McDonnell Douglas,
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC10 and MD10 series airplanes. This proposal would require an inspection of the one phase remote control circuit breakers (RCCB) in the main avionics compartment and center accessory compartment to determine their part
636 RULES: Boeing; correction,
This document corrects information in an existing airworthiness directive (AD) that applies to all Boeing Model 737 series airplanes. That AD supersedes AD 990515, amendment 3911063, to require revising the FAAapproved Airplane Flight Manual (AFM) procedure in the existing AD to simplify the instructions for correcting a jammed or restricted
637 PROPOSED RULES: Bombardier,
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Bombardier Model DHC8 100, 200, and 300 series airplanes. This proposal would require inspection to determine the orientation of the Wiggins fuel couplers of the fuel tank vent line and scavenge line in the right wing at station 249, and followon
638 RULES: Pratt & Whitney,
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Pratt & Whitney (PW) PW4000 series turbofan engines that are equipped with the high pressure compressor (HPC) cutback stator (CBS) configuration and that are used on Boeing 747, Boeing 767, and McDonnell Douglas MD11 series airplanes. This action requires
639 RULES: Jetstream,
This amendment adopts a new airworthiness directive (AD) that applies to certain British Aerospace HP137 Mk1, Jetstream series 200, and Jetstream Models 3101 and 3201 airplanes. This AD requires you to inspect the rudder quadrant support structure for cracks and correct D washer installation; and also requires you to replace any cracked component
640 PROPOSED RULES: Saab,
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Saab Model SAAB 2000 series airplanes. This proposal would require an inspection to ensure correct installation of certain selfseal couplings in each nacelle, and corrective action, if necessary. This proposal also would require installation of
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