Results
96-18-07: This amendment adopts a new airworthiness directive (AD) that applies to Bellanca, Incorporated (Bellanca) Models 17-30, 17-30A, 17-31, 17-31A, 17-31TC, and 17-31ATC airplanes. This action requires repetitively inspecting, testing, and possibly replacing the nose landing gear (NLG) strut and brackets. A collapse of a Bellanca airplane's NLG during a landing prompted this action. The actions specified by this AD are intended to prevent possible failure of the nose landing gear, which, if not detected and corrected, could result in loss of control of the airplane during landing operations.
76-06-04: 76-06-04 HAWKER SIDDELEY AVIATION, LTD: Amendment 39-2553. Applies to Model DH-104 "Dove" airplanes, all series, certificated in all categories. Compliance is required as indicated. To prevent the possible failure of engine mounting pick-up brackets, accomplish the following: (a) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished within the preceding 250 hours' time in service, inspect the following engine mounting pickup brackets in accordance with paragraph (b) of this AD, and comply with paragraph (c), (d), and (e), as appropriate. (1) For aircraft that do not incorporate Hawker Siddeley Modification 38, inspect - (i) Inboard top joint assembly inner brackets, P/N 4 W.3433-4, and outer brackets, P/N 4 W.3435-6; and (ii) Outboard top joint assembly inner brackets, P/N 4 W.3437-8, and outer brackets, P/N 4 W.3439-40. (2) For aircraft that incorporate Hawker Siddeley Modification 38, inspect - (i) Inboard top joint assembly inner brackets, P/N 4 W.4239-40, and outer brackets, P/N 4 w.4241-2; and (ii) Outboard top joint assembly inner brackets, P/N 4 W.3437-8, and outer brackets, P/N 4 W.3439-40. (b) Remove the cowling over the oil tank and inspect the engine mounting pick-up brackets specified in paragraph (a)(1) or (a)(2) of this AD, as applicable, for cracks using a dye penetrant method, and comply with paragraph (c) or (d) of this AD, as appropriate. NOTE. In conducting inspections required by paragraph (b) of this AD particular attention should be given to the top flanged edges of the brackets. (c) If a crack is found during an inspection required by paragraph (b) of this AD, before further flight, replace the affected bracket with a new bracket of the same part number or an FAA-approved equivalent. (d) If no crack is found during an inspection required by paragraph (b) of this AD, before further flight, inspect the flange edges of the brackets specified in paragraph (a)(1) or (a)(2), as appropriate, for cut-outs, nicks, rough edges, and similar defects. (e) If a defect is found during an inspection required by paragraph (d) of this AD, comply with the following, as appropriate: (1) If the defect can be blended out over a length of at least 0.5 inches along the flange edge, without a material loss in excess of 0.05 inches from the edge of the flange, accomplish the following: (i) Before further flight, blend out the defect, and (ii) Thereafter, continue to comply with paragraph (b) of this AD at intervals not to exceed 1200 hours' time in service. (2) If the defect can be blended out over a length of at least 0.5 inches along the flange edge, with a material loss in excess of 0.05 inches, but not in excess of 0.20 inches, from the edge of the flange, accomplish the following: (i) Before further flight, blend out the defect, and (ii) Thereafter, continue to complywith paragraph (b) of this AD at intervals not to exceed 300 hours' time in service. (3) If the defect cannot be blended out over a length of at least 0.5 inches along the flange edge, or a material loss in excess of 0.20 inches from the edge of the flange would result if the defect were blended out, before further flight, except that the airplane may be flown in accordance with FAR 21.197 and 21.199 to a base where the repair can be performed, replace the affected bracket with a new bracket of the same part number, or an FAA-approved equivalent. (f) The blending out of defects as required by paragraphs (e)(1)(i) and (e)(2)(i) of this AD must be accomplished in such a manner that all reworked edges are smooth, free of burrs, and reprotected in accordance with FAR 43.13. NOTE. The Hawker Siddeley Aviation Limited Model DH-104 Maintenance Manual contains instructions for the blending out of defects. Also Hawker Siddeley Aviation Limited Technical News Sheet CT(104)No. 226, Issue 1, dated October 25, 1971, deals with this subject. This amendment becomes effective March 29, 1976.
87-03-08: 87-03-08 TAYLORCRAFT: Amendment 39-5521. Applies to the following models and serial number airplanes certificated in any category: \n\n\nMODELS\nSERIAL NUMBERS\nBC, BCS, BC-65, BCS-65, BC12-65\n\n (Army L-2H), BCS12-65, BC12-D\nall serial numbers \n19, F19\nall serial numbers\nF21\nF-1000 through F1499 except F-1022\nF21A\nF-1500 through F-1506 \n\nCompliance: Required within the next 50 hours time-in-service after the effective date of this AD, unless already accomplished. \n\nTo prevent loss of engine oil and possible failure of the engine, accomplish the following: \n\n(a)\tVisually inspect the oil pressure gauge hose assembly at the engine to determine whether the type of hose assembly installed is P/N B7071. (See Fig. 1) \n\n(1)\tIf the oil pressure hose assembly is not of the type illustrated in Figure 1, no further action in accordance with this AD is required. \n\n(2)\tIf the oil pressure hose assembly is of the type illustrated in Figure 1, prior to the next flight, replacewith a new P/N B7071 hose assembly identified by Taylorcraft with a "T" stamped on one of the wrenching flats on one of the hose assembly brass fittings. \n\n(b)\tAirplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. \n\n(c)\tAn equivalent means of compliance with this AD may be used if approved by the Manager, New York Aircraft Certification Office, ANE-170, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581. \n\nAll persons affected by this AD may obtain copies of documents referred to herein upon request to the Taylorcraft Aviation Corporation, P.O. Box 947, Lock Haven, Pennsylvania 17745; or FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. \n\nThis amendment becomes effective on March 1, 1987. \n\n\nFIGURE 1 AD 87-03-08
97-07-13: 97-07-13 CONSTRUCCIONES AERONAUTICAS, S.A. (CASA): Amendment 39-9987. Docket 96-NM-127-AD. Applicability: Model CN-235 series airplanes; as listed in CASA Service Bulletin SB-235-53-21M, Revision 1, dated November 21, 1994 (military airplanes), and CASA Service Bulletin SB-235-53-21, Revision 3, dated November 30, 1994 (non-military airplanes); certificated in any category. NOTE 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressedby this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. Compliance: Required as indicated, unless accomplished previously. To prevent fatigue from causing the center wing attachment rods to fail, which consequently could reduce the structural integrity of the wing-to-fuselage attachment, accomplish the following: (a) Prior to the accumulation of 16,000 total landings, replace center wing attachment rods having CASA part number (P/N) 35-22058-0003 or 35-22067-0001 with new rods having CASA P/N 35-22067-0003, in accordance with CASA Service Bulletin SB-235-53-21M, Revision 1, dated November 21, 1994 (for military airplanes); or CASA Service Bulletin SB-235-53-21, Revision 3, dated November 30, 1994 (for non-military airplanes); as applicable. (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (c) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (d) The replacement shall be done in accordance with CASA Service Bulletin SB-235-53- 21M, Revision 1, dated November 21, 1994; or CASA Service Bulletin SB-235-53-21, Revision 3, dated November 30, 1994; as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Construcciones Aeronauticas, S.A., Getafe, Madrid, Spain. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on May 12, 1997.
2011-12-11: We are superseding an existing airworthiness directive (AD) for the products listed above. That AD currently requires, for certain airplanes, reworking the bonding jumper assemblies on the drain tube assemblies of the slat track housing of the wings. For certain other airplanes, the existing AD requires repetitive inspections of the drain tube assemblies of the slat track housing of the wings to find discrepancies, corrective actions if necessary, and terminating action for the repetitive inspections. This new AD also requires replacing the drain tube assemblies. For certain airplanes, this new AD also requires installing an additional electrostatic bond path for the number 5 and 8 inboard slat track drain tube assemblies. For certain other airplanes, this new AD also requires reworking the bonding jumper assembly. This new AD also revises the applicability to include additional airplanes. This AD was prompted by (1) reports of fuel leaks from certain drain locations of the slat track housing near the engine exhaust nozzle, which could result in a fire when the airplane is stationary, or taxiing at low speed; (2) reports of a bonding jumper assembly of certain drain tubes that did not meet bonding specifications and could result in electrostatic discharge and an in-tank ignition source; and (3) reports of fuel leaks onto the main landing gear (MLG) as a result of a cracked drain tube at the number 5 or 8 slat track housing, which could let fuel drain from the main fuel tanks into the dry bay area of the wings and onto hot MLG brakes and result in a fire.
2011-12-12: We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires a detailed inspection to detect distress and existing repairs to the leading edge structure of the vertical stabilizer at the splice at Station Zfs=52.267; repetitive inspections for cracking in the front spar cap forward flanges of the vertical stabilizer, and either the aft flanges or side skins; repetitive inspections for loose and missing fasteners; and related investigative and corrective actions if necessary. This AD was prompted by reports of cracked vertical stabilizer skin, a severed front spar cap, elongated fastener holes at the leading edge of the vertical stabilizer, and cracked front spar web and front spar cap bolt holes in the vertical stabilizer. We are issuing this AD to detect and correct such cracking damage, which could result in the structure being unable to support limit load, and could lead to the loss of the vertical stabilizer.
96-18-03: This amendment adopts a new airworthiness directive (AD), applicable to certain Saab Model SAAB SF340A and SAAB 340B series airplanes, that requires installation of an automatic flight idle stop on the control quadrant in the flight compartment. This amendment is prompted by several reports of one or both power levers being moved aft of the flight idle stop on approach. The actions specified by this AD are intended to prevent such movement of the power lever(s) during flight, which could result in the loss of power to one or both engines, as well as severe engine damage.
2011-12-05: We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires replacing the existing unshielded fuel quantity indication system (FQIS) wire bundles with double shielded FQIS wire bundles, installing a new wire feed-through fitting, and grounding the wire shields, as applicable; and doing repetitive low frequency eddy current (LFEC) inspections for cracking of the fuselage skin, and corrective actions if necessary. This AD also requires revising the maintenance program to incorporate certain airworthiness limitations. This AD was prompted by fuel system reviews conducted by the manufacturer. We are issuing this AD to increase the level of protection from lightning strikes and prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
2011-12-01: We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires determining if affected seats and seating systems and their components are compliant with certain FAA regulations, and removing those seats, seating systems, and their components that are shown to be unsafe from the affected fleet. This AD was prompted by a determination that the affected seats and seating systems may not meet certain flammability, static strength, and dynamic strength criteria. Failure to meet static and dynamic strength criteria could result in injuries to the flightcrew and passengers during emergency landing conditions. In the event of an in-flight or post- emergency landing fire, failure to meet flammability criteria could result in an accelerated fire. We are issuing this AD to prevent accelerated fires and injuries to the flightcrew and passengers.
96-18-02: This amendment supersedes Airworthiness Directive (AD) 96-03-11, which currently requires the following on American Champion Aircraft Corporation (American Champion) Models 8KCAB, 8GCBC, 7GCBC, and 7ECA airplanes that are equipped with metal spar wings: inspecting (one-time) the wing front strut attach fittings for cracks, scratches, or surface deformities; replacing any wing front strut attach fitting with cracks, scratches, or surface deformities; and reporting the inspection results to the Federal Aviation Administration (FAA). This action results from reports submitted as a requirement of the existing AD that reference 24 fittings with cracks, scratches, or surface deformities on 7 different airplanes, and the FAA's determination that improved wing front strut attach fittings (developed by American Champion) are not susceptible to cracks, scratches, or surface deformities. This action requires installing removable inspection hole covers for the wing front strut attachfittings, and replacing the wing front strut attach fittings with fittings of improved design. The action also provides the provision of repetitively inspecting the wing front strut attach fittings (provided no cracks, scratches, or surface deformities are found) if parts have been ordered but are not available. The actions specified by this AD are intended to prevent structural failure of a wing caused by cracked wing front strut attach fittings, which, if not detected and corrected, could result in loss of control of the airplane.