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

April 17

McDonnell Douglas DC-8 Series Airplanes: NPRM requires revision to the Airplane Flight Manual add to to ensure that the main ornament cargo door is closed, latched, and locked; inspection of the door wire pack to detect discrepancies and repair or replacement of discrepant parts. This proposal also would require modification of the hydraulic and indication plans of the main deck cargo door, and installation of a means to obviate pressurization to an unsafe plain if the main deck cargo door is not clos latched, and fasteninged The actions are intended to impede opening of the cargo door while the airplane is in flight, and following [i]or[/i] succeeding event rapid decompression. Comments due June 1 Docket No. 2000-NM-49-AD. Contact: Michael E O'Neil, 562/627-5320; 562/627-5210

Embraer EMB-120 Series Airplanes: NPRM require revising the Airplane Flight Manual (AFM), and either installing hydraulic tube assemblies incorporating a check valve, or visually inspecting the check valve if already installed and corrective action, if necessary. The actions are intended to preclude the landing gear doors from becoming closeed from opening during application of exigency procedures in the event of a los of hydraulics. illustrations due May 17. Docket No. 99-NM-356-AD. Contact: Robert Capezutto, 770/703-6071; 770/703-6097

Lockheed L-1011-385 Series Airplanes: AD, final mastership revises existing AD to enlarge the compliance time for the modification of the web-to-cap fastener concavitys and eliminates references to modification of the outboard spar. The actions are intended to impede fatigue cracking in the web of the rear spar of the wing. Effective May 22 Docket No. 99-NM-252-AD; Amendment 39-11677; AD 99-13-08 R1 Contact: Thomas Peter 770/703-6063; 770/703-6097

April 18

Fokker F27 Series Airplanes With Rolls-Royce 532-7 "Dart 7" Series Engines: AD, final sway supersedes existing AD to require incorporation of amended Limitations and turn of events Procedures Sections into the AFM. The actions are intended to make secure that flightcrews follow correct transactions that will maintain the HPC lever in a permanent lockout position. Effective April 18 with remarks due May 18. Docket No. 2000-NM-95-AD; Amendment 39-11684; AD 2000-07-28 Contact: Norman B Martenson, 425/227-2110; 425/227-1149

Airbus A300 Series Airplanes: AD, final lordship requires a one-time detailed visual inspection to ascertain corrosion on the outer surface of the fuselage skin panel; application of corrosion preventive protection; and corrective action, if necessary. The actions are intended to discover and correct corrosion of the fuselage skin panel. Effective May 23 Docket No. 99-NM-304-AD; Amendment 39-11682; AD 2000-07-26 Contact: Norman B Martenson, 425/227-2110; 425/227-1149

Rolls-Royce Tay 650-15 Series Turbofan Engines: AD, final empire requires the establishment of cyclic life limits for stage 1 high constraining force turbine (HPT) and stage 1 cheap pressure turbine (LPT) disks operating subordinate to new flight plan profiles. The actions are intended to impede crack initiation and propagation leading to turbine disk failure. Effective June 19 Docket No. 99-NE-61-AD; Amendment 39-11687; AD 2000-08-01 Contact: James Lawrence, 781/238-7176 781/238-7199

April 19

Boeing 707 727C and 727-100C Series Airplanes: NPRM propos supersedure of an existing AD mandate follow-on repetitive inspections of repaired or modified areas for certain airplanes. The actions are intended to discover and correct such cracking and/or tearing. make comments [i]or[/i] remarkss due June 5. Docket No. 99-NM-363-AD. Contact: Walt Sippel, 425/227-2774; 425/227-1181

Airbus A300, A300-600, and A310 Series Airplanes: NPRM requires replacement of the transformer rectifier units (TRU) in the avionics compartment with of the present day improved TRU's. The actions are intended to hinder failure of the TRU's. illustrations due May 19. Docket No. 2000-NM-54-AD. Contact: Norman B Martenson, 425/227-2110; 425/227-1149

Airbus A310 Series Airplanes: NPRM require modification of the position 1 flap churl jack. The actions are intended to obviate fracture of the lead wrench of the position 1 flap sordid wretch jack. Comments due May 19 Docket No. 2000-NM-77-AD. Contact: Norman B Martenson, 425/227-2110; fax 425/227-1149

April 20

Airbus A300, A300-600, and A310 Series Airplanes: NPRM propos supersedure of an existing AD to resolve into the inspection threshold and require repetitive inspections following accomplishment of the optional modification for archetype A310 series airplanes. The actions are intended to interrupt fatigue cracking. Comments due May 22 Docket No. 99-NM-240-AD. Contact: Norman B Martenson, 425/227-2110; 425/227-1149

Airbus A300-600 Series Airplanes: NPRM propos supersedure of an existing AD to revise the compliance entrances for the repetitive ultrasonic inspections and would require that the inspections be repeated at reduc intervals. The actions are intended to obstruct fatigue cracks in the metal pin [i]or[/i] fastening holes of the wing spars. make notess due May 22. Docket No. 98-NM-164-AD. Contact: Norman B Martenson, 425/227-2110; 425/227-1149

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