Results
2007-06-04: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as two fatigue failures of flap carriage rollpins that occurred on in-service airplanes. We are issuing this AD to require actions to correct the unsafe condition on these products.
2019-05-01: We are superseding Airworthiness Directive (AD) 2017-11-06, for all Pratt & Whitney (PW) PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2143, PW2643, and F117-PW-100 turbofan engine models. AD 2017-11-06 required initial and repetitive on-wing eddy current inspections (ECIs) of affected engines with certain diffuser and high- pressure turbine (HPT) cases installed. AD 2017-11-06 also required a fluorescent-penetrant inspection (FPI) of the diffuser case rear flange and the HPT case front flange. This AD requires an on-wing ECI of all diffuser case M-flange replacement repairs. This AD was prompted by a rupture of the diffuser-to-HPT case flange. We are issuing this AD to address the unsafe condition on these products.
2007-05-15: The FAA is superseding an existing airworthiness directive (AD) for Teledyne Continental Motors (TCM) GTSIO-520 series reciprocating engines. That AD currently requires initial and repetitive visual inspections of the starter adapter assembly and crankshaft gear and unscheduled visual inspections of the starter adapter assembly and crankshaft gear due to a rough-running engine. That AD also requires replacement of the starter adapter shaft gear needle bearing with a certain bushing and installation of a certain TCM service kit at the next engine overhaul, or at the next starter adapter replacement, whichever occurs first. This AD requires performing the inspection ordered in paragraph (h) of this AD every 100 hours time-in- service (TIS), or annually. This proposed AD results from an error discovered in AD 2005-20-04. We are issuing this AD to failure of the starter adapter assembly and or crankshaft gear, resulting in failure of the engine and possible forced landing.
2007-05-17: The FAA is superseding an existing airworthiness directive (AD) for Pratt & Whitney (PW) JT9D series turbofan engines. That AD currently requires revisions to the Airworthiness Limitations Section (ALS) of the manufacturer's Instructions for Continued Airworthiness (ICA) to include required enhanced inspection of selected critical life-limited parts at each piece-part opportunity. This AD modifies the JT9D series engines ALS sections of the manufacturer's manuals and an air carrier's approved continuous airworthiness maintenance program to incorporate additional inspection requirements. This AD results from the need to require enhanced inspection of selected critical life- limited parts of JT9D series turbofan engines. We are issuing this AD to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane.
2000-20-20: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747-400 series airplanes, that requires removal of existing inertial reference units (IRU) and installation of modified IRU's. This amendment is prompted by a report of the failure of the left and center IRU's on a single flight. The actions specified by this AD are intended to prevent loss of multiple IRU's in flight, which could result in the loss of navigation data during flight. This could compromise the ability of the flight crew to maintain the safe flight and landing of the airplane.
53-07-01: 53-07-01\tde HAVILLAND: Applies to Model DHC-2 (Beaver) Aircraft, Serial Numbers 1 to 483 Inclusive. \n\n\tCompliance required as indicated. \n\n\tThere have been instances of the elevator outboard hinge becoming loose in its attachments to the horizontal stabilizer rib. Rivet holes have becomes enlarged permitting the fitting to "work". The de Havilland Aircraft of Canada, Ltd., in agreement with the Canadian Department of Transport, issued the following mandatory instructions in which the FAA concurs: \n\n\tInspection intervals: 50 hours, pending incorporation of the repair scheme described below. \n\n\tRepair scheme: The repair scheme described herein is not mandatory until a defect appears. (See Fig. 1.) \n\n\n\n\n\n\tThe following parts are required: \n\n\nC2-TP-179ND\nHinge plate\n2 required\n\nC2-TP-181ND\nAngle\n2 required\n1 each \nCR 162-6-8\nCherry rivet\n10 required\nend of\nCR 162-6-10\nCherry rivet\n12 required\nT/P.\nCR 163-6-8\nCherry rivet\n6 required\n\n\n\tProcedure.1.\tRemove tailcone. \n\t2.\tRemove elevator. \n\t3.\tLocate extreme outboard elevator hinges on tailplane. \n\t4.\tDrill out 4 rivets retaining hinge plates. \n\n\tImportant: Do not drill out rivet at point A until angle C2-TP-181ND has been riveted. (See Fig. 1.) \n\n\t5.\tRemove small tab at outboard ends of rear spar on tailplane. \n\t6.\tDrill out 3 rivets at point B securing angle C2-TP-139. (Angle must still remain in position secured by 1 rivet at point A.) \n\t7.\tLocate new angle C2-TP-181ND on spar rear face and flush with outer skin of end rib. \n\t8.\tRivet angles C2-TP-139 and -181ND to spar as shown at point B. \n\t9.\tDrill out rivet at point A. \n\t10.\tMake or secure new hinge plate C2-TP-179ND and assemble as shown. \n\t11.\tAssemble studs to new hinge plates. \n\t12.\tReplace elevator and tailcone. \n\n\t(de Havilland Technical News Sheet Series B, No. 60, dated February 10, 1953, Subject "Tailplane - Elevator Outboard Hinge - Mod. 2/901" covers this same subject.)
2019-03-30: We are adopting a new airworthiness directive (AD) for certain Empresa Brasileira de Aeronautica S.A. (Embraer) Model EMB-135ER, - 135KE, -135KL, and -135LR airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP airplanes. This AD was prompted by reports of internal corrosion of the stow/transit switches installed in the engine thrust reversers. This AD requires installation of new stow/ transit switches. We are issuing this AD to address the unsafe condition on these products.
98-13-23: This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300-600 series airplanes, that requires inspections to detect corrosion and cracking of the lower horizontal stabilizer cutout longeron, the corner fitting, the skin strap, and the outer skin; and repair, if necessary. This amendment is prompted by cracking found at the lower corner of the horizontal stabilizer cutout longeron during a full scale fatigue test. The actions specified by this AD are intended to prevent such cracking, which could result in reduced structural integrity of the horizontal-stabilizer cutout longeron.
2007-05-19: The FAA adopts a new airworthiness directive (AD) for all Glasflugel Models H 301 "Libelle,'' H 301B "Libelle,'' Standard "Libelle,'' and Standard Libelle-201B sailplanes. This AD requires you to replace the rudder actuator arm (manufactured according to drawing No. 301-45-10) with an improved design rudder actuator arm (manufactured following drawing No. 301-45-13). This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to detect and correct damage to the rudder actuator arm, which could result in failure of the rudder actuator arm. This failure could result in reduced or loss of rudder control.
2000-20-03 R1: This amendment revises an existing airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B19 series airplanes, that currently requires installation of shields for the aileron quadrants in the wheel bay of the main landing gear (MLG). This amendment revises the compliance time for the requirements of that AD. The actions specified in this AD are intended to prevent accumulation of water, ice, or slush on the aileron quadrants and control cable pulleys in the wheel bay of the MLG, which could freeze and result in reduced controllability of the airplane.