Results
2015-21-05: We are adopting a new airworthiness directive (AD) for all Fokker Services B.V. Model F.27 Mark 200, 300, 400, 500, 600, and 700 airplanes. This AD was prompted by a design review, which revealed that no controlled bonding provisions are present on a number of critical locations inside the fuel tank or connected to the fuel tank wall; and no anti-spray cover is installed on the fuel shut-off valve (FSOV) in both wings. This AD requires installing additional bonding provisions in the fuel tank, installing an anti-spray cover on the FSOV, and revising the airplane maintenance program by incorporating fuel airworthiness limitation items and critical design configuration control limitations. We are issuing this AD to prevent an ignition source in the fuel tank vapor space, which could result in a fuel tank explosion and consequent loss of the airplane.
2001-09-16: This amendment adopts a new airworthiness directive (AD) that applies to certain Eagle Aircraft Pty. Ltd. (Eagle) Model 150B airplanes. This AD requires you to inspect the rudder cables for fraying, broken strands, etc. (referred to as damage), and replace any damaged cables. This AD also requires you to replace the rudder cable pulleys with larger diameter pulleys to eliminate the possibility of further damage. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Australia. The actions specified by this AD are intended to detect and correct damaged rudder cables caused by chafing of the cable against the pulleys. Continued airplane operation with damaged cables could result in rudder cable system failure with possible loss of airplane control.
97-10-12: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that requires a one-time inspection to detect riding, chafing, or damage of the wire bundles adjacent to the disconnect panel bracket of the observer's station. This amendment also requires repair or replacement of damaged wires with new or serviceable wires; installation of anti-chafing sleeving on the wire bundles, if necessary; and installation of grommet along the entire upper aft edge of the disconnect panel bracket. This amendment is prompted by a report indicating that the circuit breakers tripped on a Model MD-11 series airplane due to inflight arcing behind the avionics circuit breaker panel as a result of chafing of the wire bundles adjacent to the disconnect panel bracket assembly. The actions specified by this AD are intended to detect and correct such chafing, which could result in a fire in the wire bundles and smoke in the cockpit.
97-09-14: This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 737-100, -200, -300, -400, and -500 series airplanes, that requires an inspection of reworked aileron/elevator power control units (PCU's) and rudder PCU's to determine if reworked PCU manifold cylinder bores containing chrome plating are installed, and replacement of the cylinder bores with bores that have been reworked using the oversize method or the steel sleeve method, if necessary. This amendment is prompted by a review of the design of the flight control systems on Model 737 series airplanes. The actions specified by this AD are intended to prevent a reduced rate of movement of the elevator, aileron, or rudder due to contamination of hydraulic fluid from chrome plating chips; such reduced rate of movement, if not corrected, could result in reduced controllability of the airplane.
2024-12-06: The FAA is adopting a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited Model DHC-8-401 and - 402 airplanes. This AD was prompted by reports of moisture in the wing- to-fuselage joint, between the mating front spar and rear spar frame segments. This AD requires a visual inspection of the fuselage front and rear spar frames, an ultrasonic test if applicable, other specified actions, and repair if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
56-27-01: 56-27-01 CONVAIR: Applies to All Models 340 and 440 Aircraft. Compliance required as noted below. A report has been received concerning the failure of the elevator servo tab rod on a version of the Model 340 aircraft. Since the tabs on the subject model aircraft are unbalanced, a serious flutter condition resulted and a critical accident was narrowly avoided. In view of the fact that the tab rods and tab rod ends on the subject models aircraft are identical in design, hence susceptible to a similar type of failure, the following inspections and tab rod replacements or equivalent measures are required. Compliance required at every 110 hours of operation or regular scheduled inspection closest thereto. 1. (a) Inspect the tab rods and rod ends on the elevator, for looseness in the rivets which attach the rod ends to the rods, and for any relative movement between the rod and the rod ends. Parts which exhibit these defects shall be replaced with satisfactory parts. Upon completion of the tab rod replacement program or equivalent noted in items 2 (a), and 2 (b) below, this 110-hour inspection may be discontinued. Compliance required not later than November 30, 1957. 2. (a) Model 340 replacement of all elevator tab rods with improved, heavier rods and rod ends, and replacement of the right-hand elevator tab idler link with symmetrical idler link. (Convair Service Bulletin Nos. 340-207 and 340-150A cover this same subject.) 2. (b) Model 440 replacement of the right-hand elevator tab rods and tab rod ends with improved heavier tab rods and tab rod ends. (Convair Service Bulletin No. 440-27A covers this same subject.)
2024-13-04: The FAA is adopting a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 7X airplanes. This AD was prompted by a determination that non-conforming washers may have been installed in production on engine 1 and 3 forward yokes. This AD requires a one-time inspection for non-conforming washers and, depending on findings, related investigative and corrective actions, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
72-25-07: 72-25-07 MCCAULEY: Amdt. 39-1573. Applies to the two-bladed constant speed series propeller Models E2A34C64(-)/90AT-8 and E2A34C73(-)/90AT-8 with the following blades and hubs installed on but not limited to the Cessna P206, A, B, C, D, E, and Cessna 210E, F, G, H, J, K, and L aircraft with Continental IO-520 series (normally aspirated) engines. TABLE I - BLADE SERIAL NUMBERS All Model 90AT-8 propeller blades with serial numbers not ending with suffix letter "S" (Example: C238479Y is affected while C238479YS would not be affected). TABLE II - HUBS MODELS AND SERIAL NUMBERS Serial Numbers 64000 thru 699999 for the following hubs: E2A34C64 E2A34C73-A E2A34C64-A E2A34C73-J E2A34C73 E2A34C73-K Compliance required as indicated, unless already accomplished. To prevent possible blade and hub failures, accomplish the following: a) Propellers with 775 or more total hours in service, must be reworked or replaced in accordance with paragraphs (d), and (e)or (f) as applicable within the next 25 hours in service after the effective date of this AD. b) Propellers with less than 775 total hours in service must be reworked or replaced in accordance with paragraphs (d), and (e) or (f) as applicable prior to the accumulation of 800 total hours in service. c) Propellers whose total hours in service are unknown will be assumed to have a total of 775 hours minimum and thus fall within the requirements for rework or replacement in accordance with paragraph (a). d) Rework affected propeller blades in accordance with McCauley Service Bulletin 100 dated October 30, 1972, or replace with Model 90AT-8 blades to which this AD does not apply. e) Rework affected Model E2A34C73(-) hubs in accordance with McCauley Service Bulletin 100 dated October 30, 1972, or replace with Model E2A34C73(-) hubs to which this AD does not apply. f) Replace affected Model E2A34C64(-) hubs with Models E2A34C73(-) hubs to which this AD does not apply, or which have been reworked in accordance with McCauley Service Bulletin No. 100 dated October 30, 1972. (The spinner shell and bulkhead must be replaced when converting from the E2A34C64(-) to the E2A34C73(-) Model. A kit, Cessna P/N SK-210-45, is available for this purpose from the airplane manufacturer.) (McCauley Bulletins No. 81 dated March 9, 1970, No. 87 dated November 6, 1970, No. 87-1 dated November 25, 1970, No. 87-2 dated April 21, 1971, No. 88 dated November 6, 1970, McCauley Service Manual 720415 and Cessna Service Letter No. 65-68 dated July 13, 1965, also pertains to this subject.) This amendment becomes effective December 13, 1972.
2005-09-01: The FAA is adopting a new airworthiness directive (AD) for certain Cessna Model 750 airplanes. The AD requires repetitive inspections for clearance and chafing of an auxiliary power unit (APU) fuel tube assembly in the tail cone area of the airplane, and corrective actions if necessary. For certain airplanes, this AD also requires replacing the APU fuel line. This AD is prompted by reports of chafed APU fuel tubes leaking into the tail cone area due to interference between the fuel tube assembly and elevator flight control cables, hydraulic lines, and high-temperature bleed air couplings. We are issuing this AD to detect and correct this interference, which could result in chafing, fuel leaking into an area where ignition sources are present, and possible fire in an area without fire detection or extinguishing provisions.
2024-12-02: The FAA is adopting a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This AD was prompted by production flight test findings of several oxygen masks disconnected from their accompanying portable oxygen bottles. This AD requires inspecting the portable oxygen bottles and reconnecting the masks to the accompanying portable oxygen bottles if not connected, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.