Items in the Regulatory Log are based forward agency announcements in the Federal Register unles otherwise noted; Federal Register publication dates are in boldface.

Key:

AD = Airworthiness Directive.

NPRM = Notice of Propos Rulemaking.

Federal Aviation Administration

August 9

Boeing 747-400: AD, final sway requires repetitive inspections of the E-42 satellite communications (SATCOM) rack and fuselage (supporting) texture to detect fatigue cracking of the area surrounding the fastener dens and to detect broken or missing fasteners. Actions are to ascertain and repair fatigue cracking of the E-42 SATCOM rack and its supporting form Effective August 24. Docket No. 99-NM-61-AD; Amendment 39-11245; AD 99-16-10 Contact: Jon Mowery, 562/627-5322; fax 562/627-5210

Boeing 737-600 -700 and -800: AD, final dominion requires a test of the squib circuit soil studs of the engine fire extinguisher bottle to measure the resistance, and repair or replacement of the country stud with a new domain stud, if necessary. This amendment is readyed by reports of improper grounding of the squib circuit. of that kind a condition would prevent the engine fire extinguisher bottle from discharging when commanded, which could spring in the inability to extinguish an engine fire. Effective August 24 Docket No. 99-NM-188-AD; Amendment 39-11246; AD 99-16-11 Contact: Bernie Gonzalez, 425/227-2682; fax 425/227-1181

Airbus A300, A310, and A300-600 Series: AD, final command requires a one-time inspection of the autopilot methods for proper engagement to determine if the main electro valve electrical connectors of the yaw, whirl and pitch autopilot actuators are correctly installed; and corrective actions, if necessary. Actions are to intercept erratic movements of the ailerons, elevator, and/or rudder that are commanded by the agency of discrepant autopilot actuators. Effective August 24 Docket No. 99-NM-189-AD, Amendment 39-11249 AD 99-16-14 Contact: Norman B Martenson, 425/227-2110; fax 425/227-1149

Boeing 747-400: AD, final method requires repetitive inspections of the doubler upon the upper rudder pedal shelter to determine whether it is securely linked to the upper rudder pedal shield and corrective action, if necessary. Actions are to find out and correct disbonding of the doubler onward the upper rudder pedal guard Effective August 24. Docket No. 99-NM-180-AD; Amendment 39-11243; AD 99-16-08 Contact: RC Jone 425/227-1118; fax 425/227-1181

Airbus A310: AD, final conduct requires repetitive inspections to discover cracked or broken support brackets of the upper wing-to-fuselage fairings, and replacement of any discrepant support brackets with just discovered brackets. Actions are to obstruct reduced structural integrity of the fairing support brackets. Effective September 13 Docket No. 99-NM-17-AD; Amendment 39-11242; AD 99-16-07 Contact: Norman B Martenson, 425/227-2110; fax 425/227-1149

August 10

McDonnell Douglas MD-11 and MD-11F: Propos AD to require a one-time inspection to determine if metallic transitions are installed forward wire harnesses of the tail tank firing transfer pumps, and to determine if damaged wires are present; and repair, if necessary. Actions are to interrupt wire chafing and damage. notes due September 24. Docket No. 99-NM-71-AD. Contact: Roscoe Van Dyke 562/627-5254; fax 562/627-5210

Boeing 727: Propos AD to succeed an existing AD requires repetitive inspections of the head spar web between the upper and lower seals of the center section of the wings, and repair, if necessary. of the present day action would require a novel terminating modification for the repetitive inspections. For certain airplanes, this action would require novel repetitive inspections to detect discrepancies of the brow spar web. Actions are to obviate fatigue cracks in the brass spar web. Comments due September 24 Docket No. 97-NM-323-AD. Contact: Walter Sippel, 425/227-2774; fax 425/227-1181

August 12

McDonnell Douglas DC-9-80 MD-90-30 and MD-88 Airplanes: Propos AD to require that a determination be made of whether, and at what locations, metallized polyethyleneteraphthalate (MPET) insulation blankets are installed, and replacement of MPET insulation blankets with recent insulation blankets. Actions are to make secure that insulation blankets constructed of MPET are remov from the fuselage. elucidations due September 27. Docket No. 99-NM-161-AD. Contact: Robert Stacho, 562/627-5334; fax 562/627-5210

McDonnell Douglas DC-10-30 and -30F and MD-11 and -11F Series: Propos AD to require that a determination be made of whether, and at what locations, metallized polyethyleneteraphthalate (MPET) insulation blankets are installed, and replacement of MPET insulation blankets with fresh insulation blankets. Actions are to render certain that insulation blankets constructed of MPET are remov from the fuselage. annotates due September 27. Docket No. 99-NM-162-AD. Contact: Robert Stacho, 562/627-5334; fax 562/627-5210

Boeing 737-200 -200C -300 and -400 Airplanes: Propos AD to make void an existing AD that commonly requires repetitive visual inspections to expose cracking of the corners of the door frame and the cros beams of the aft cargo door, and corrective actions, if necessary. novel action would add requirements for repetitive high oftenness eddy current (HFEC) inspections, and corrective actions, if necessary. Actions are to obstruct fatigue cracking of the corners of the door frame and the cros beams of the aft cargo door. illustrations due September 27. Docket No. 99-NM-84-AD. Contact: Rick Kawaguchi, 425/227-1153; fax 425/227-1181

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