SCHEDULE OF AIRWORTHINESS DIRECTIVES
Mooney M20A · Service Bulletins
Overview
This document is a Schedule of Airworthiness Directives issued by the Civil Aviation Safety Authority of Australia, specifically addressing the Mooney M20 Series aeroplanes. It outlines the requirements for inspecting and maintaining the aileron control links across various models within the M20 series. The directive is crucial for ensuring the safety and airworthiness of these aircraft, particularly in light of reported failures in the aileron control system. Compliance with the directive is mandatory for all applicable models, and it specifies inspection procedures, timelines, and actions to take if defects are found. The document serves as a critical reference for maintenance personnel and pilots operating these aircraft.
- Applicable to Mooney M20B, M20C, M20D, M20E, M20F, M20G, M20L, M20J, M20K, M20M, M20R.
- Inspect aileron control links for reinforcement gussets and cracks as per SB M20-264.
- If cracks are found, replace the cracked link before further flight.
- Compliance required within 100 hours after February 25, 1999, and at intervals not exceeding 100 hours thereafter.
- Failure of aileron control links can lead to loss of control of the aircraft.
Document
Source
Originally published by services.casa.gov.au. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Service Bulletins
- Year
- 1999
- Pages
- 2
- File size
- 12 KB
- Publisher
- services.casa.gov.au
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In this document
Applicability
The directive applies to several models of the Mooney M20 series, including M20B, M20C, M20D, M20E, M20F, M20G, M20L, M20J (serial numbers 24-0001 to 24-3359), M20K (25-0001 to 25-1999), M20M (27-0001 to 27-0197), and M20R (29-0001 to 29-0042). All serial numbers of these models are included.
Inspection Requirements
Pilots and maintenance personnel are required to visually inspect the aileron control links at the second 90-degree angle joint from the Heim bearing for the installation of a reinforcement gusset. This inspection must follow the instructions in Mooney Engineering Design Service Bulletin M20-264.
Action if Cracks Found
If no reinforcement gusset is installed, the aileron control links must be inspected for cracks using magnetic particle methods. If cracks are detected, the cracked control link must be replaced with an improved design link before further flight. Both links can be replaced at any time as a terminating action for the repetitive inspection requirement.
Compliance Timeline
Compliance with the directive is required within 100 hours of time in service after February 25, 1999, unless already completed. Inspections must be repeated at intervals not exceeding 100 hours of time in service.
Background
The directive was issued following reports of failures in the aileron control links, which could lead to loss of aileron control and potential loss of control of the aircraft. This emphasizes the importance of adhering to the inspection and maintenance requirements outlined.
Safety notes
- Failure of aileron control link(s) could result in loss of aileron control and consequent loss of control of the aircraft.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Mooney M20 Series Aeroplanes AD/M20/52 Aileron Control Link 2/99 Applicability: Models M20B, M20C, M20D, M20E, M20F, M20G, and M20L, all serial numbers; and, Model Serial Number M20J 24-0001 through 24-3359 M20K 25-0001 through 25-1999 M20M 27-0001 through 27-0197 M20R 29-0001 through 29-0042 Requirement: 1. Visually inspect the aileron control links (left-hand and right-hand) at the second 90-degree angle joint from the Heim bearing for the installation of a reinforcement gusset. Accomplish the inspection in accordance with the Instructions section of Mooney Engineering Design Service Bulletin (SB) M20-264. If a reinforcement gusset is installed, no further action is required by this Directive. 2. If a reinforcement gusset is not installed, inspect the aileron control links for cracks using magnetic particle methods. Accomplish this inspection in accordance with the Instructions section of Mooney Engineering Design SB M20-264. a. If cracks are found, before further flight, replace the cracked aileron control link with an aileron control link of improved design. Accomplish this replacement in accordance with the Instructions section of Mooney Engineering Design SB M20-264. b. Replacing both aileron control links with links of improved design may be accomplished at any time as terminating action for the repetitive inspection requirement of this Directive, but must be accomplished before further flight on any aileron control link found cracked. Note: FAA AD 98-24-11 Amdt 39-10897 refers. Compliance: 1. Unless already accomplished, within 100 hours time in service after 25 February 1999. 2. Before further flight if required after accomplishment of the Requirement 1 inspection, and thereafter at intervals not to exceed 100 hours time in service. This Airworthiness Directive becomes effective on 25 February 1999. Background: The FAA received reports of failures of the aileron system control links. Failure of the aileron control link(s) could result in loss of aileron control and consequent loss of control of the aircraft. COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES