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2005-13-36: Center ball of the aileron control cable

FAA order 2005-13-36 is an airworthiness directive in force since August 9, 2005. The FAA's subject line: Center ball of the aileron control cable. It names Learjet 23, Learjet 24, Learjet 25, Learjet 31, Learjet 35: about 325 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: flight controls.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
Learjet Inc.
Models
23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), 36
On this site
Learjet 23 6 registered
Learjet 24 16 registered
Learjet 25 23 registered
Learjet 31 119 registered
Learjet 35 161 registered

Dates and paperwork

In force since
August 9, 2005
Published
July 5, 2005 (signed June 21, 2005)
Docket
FAA-2005-20872
Status
Current
The FAA's document
Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is adopting a new airworthiness directive (AD) for certain Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C- 21A), and 36 airplanes. This AD requires a one-time inspection of the center ball of the aileron control cable or cables for a defective swage, and corrective actions if necessary. This AD is prompted by a report indicating that an aileron cable failed on one affected airplane when the cable underwent a tension check. We are issuing this AD to prevent severe weakening of the aileron cable, and consequent reduced controllability of the airplane.

The order itself the regulatory text, as published

Show the full text (4,172 characters)
2005-13-36 Learjet: Amendment 39-14173. Docket No. FAA-2005-20872; Directorate Identifier 2004-NM-271-AD. Effective Date (a) This AD becomes effective August 9, 2005. Affected ADs (b) None. Applicability: (c) This AD applies to Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), and 36 airplanes; certificated in any category; as identified in the Bombardier alert service bulletins in Table 1 of this AD. Table 1.--Service Bulletins Bombardier alert service bulletin Date Model A23/24/25 27 17 December 23, 2002 23, 24, 24A, 24B, 24B A, 24C, 24D, 24D A, 24E, 24F, 24F A, 25, 25A, 25B, 25C, 25D, and 25F airplanes. A28/29 27 24 December 23, 2002 28 and 29 airplanes. A31 27 25 December 23, 2002 31 and 31A airplanes. A35/36 27 42 December 23, 2002 35, 35A (C 21A), and 36 airplanes. Unsafe Condition (d) This AD was prompted by a reportindicating that an aileron cable failed on one affected airplane when the cable underwent a tension check. We are issuing this AD to prevent severe weakening of the aileron cable, and consequent reduced controllability of the airplane. Compliance: (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Inspection and Corrective Action (f) Within 100 flight hours, or 90 days after the effective date of this AD, whichever occurs first: Do a detailed inspection of the center ball of the aileron control cable or cables for a defective swage, and before further flight, replace any damaged or defective cable with a new cable. Unless otherwise specified in this AD, do all actions in accordance with the Accomplishment Instructions of the applicable service bulletin in Table 1 of this AD. Note 1: For the purposes of this AD, a detailed inspection is: "An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required." Parts Installation (g) As of the effective date of this AD, no person may install on any airplane an aileron control cable unless it has been inspected in accordance with paragraph (f) of this AD. No Reporting or Parts Return Requirement (h) Although the service bulletins in Table 1 of this AD have procedures for submitting a report showing compliance with the applicable service bulletin and for returning any discrepant parts to the manufacturer, this AD does not include those requirements. Alternative Methods of Compliance (AMOCs) (i) The Manager, Wichita Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Material Incorporated by Reference (j) You must use the service information in Table 2 of this AD to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approves the incorporation by reference of these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get copies of the service information, contact Learjet, Inc., One Learjet Way, Wichita, Kansas 67209-2942. To view the AD docket, go to the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., room PL-401, Nassif Building, Washington, DC. To review copies of the service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html . Table 2.--Material Incorporated by Reference Bombardier alert service bulletins Date A23/24/25 27 17 December 23, 2002. A28/29 27 24 December 23, 2002. A31 27 25 December 23, 2002. A35/36 27 42 December 23, 2002.

Related safety bulletins advice on the same designs, not orders

2026-03-192026-07 · MAIN LANDING GEAR ATTACH SECTION, Trunnion Pins
2016-09-15NM-16-24 · Fuselage: Main Plate/Skin
2013-06-24NM-13-38 · Flight Controls Control Column Section
2011-08-22NM-11-48 · Ice and Rain Protection: Wing Transverse Duct Assembly
2004-05-06CE-04-67 ·

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/2005-13-36.json · aircraft systems.