AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/PFP/17 Amdt 3 and issues the following AD under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Propellers - Fixed Pitch
AD/PFP/17
Amdt 4
Hub Cracking 12/2003
Applicability: All McCauley model 1A103/TCM[XXXX] propellers S/N 770001 through 777390 or alpha-numeric serial number BC001 through to but not including KC001.
Note 1: These propellers are fitted on but are not limited to Cessna 152, A152, Reims F152 or FA152 aircraft.
Requirement: Unless previously accomplished in accordance with McCauley Alert Service Bulletin (ASB) 221 Revision B or C, inspect and if necessary rework the propeller hub in accordance with McCauley Alert Service Bulletin 221C.
Note 2: FAA AD 2003-12-05 Amdt 39-13190 refers.
Note 3: Propellers previously removed as unserviceable in accordance with the previous inspection criteria may be returned to service provided they meet the inspection and rework requirements detailed in McCauley ASB 221C.
Compliance: Initial inspection prior to 3000 hours propeller time in service since new.
Thereafter, reinspect at intervals not exceeding 800 hours propeller time in service or 12 calendar months, whichever occurs first.
This Amendment becomes effective on 27 November 2003. Background: Several reports of propeller hub cracking have been received.
Amendment 1 was raised to extend the repetitive inspection requirements, mandated by the initial issue of this Directive, from 50 to 800 hours or 12 calendar months, whichever occurs first.
Amendment 2 was raised on receipt of McCauley SB 221B which corrected the propeller mounting bolt torque to a dry torque and changed the specification of the glass shot used to repair the propeller hub.
Amendment 3 was raised to allow additional rework operations at more than one bolthole.
Propellers - Fixed Pitch
AD/PFP/17 Amdt 4 (continued)
Amendment 4 is raised to correct the compliance statement. Amendment 3 of this Directive became effective 4 September 2003.
Amendment 2 of this Airworthiness Directive became effective on 19 June 1997. Amendment 1 of this Airworthiness Directive became effective on 27 February 1997.
The original issue of this Airworthiness Directive became effective on 16 October 1995.
Jim Coyne
Delegate of the Civil Aviation Safety Authority 17 October 2003
The above AD is notified in the Commonwealth of Australia Gazette on 5 November 2003.
Overview
The Civil Aviation Safety Authority Amendment Instrument 2003 (F2006B06175) is an amendment to the Airworthiness Directive (AD) AD/PFP/17, specifically addressing issues related to the cracking of propeller hubs on certain McCauley model 1A103/TCM propellers. This legislative instrument was enacted to ensure the safety of aircraft by mandating specific inspection and maintenance protocols to prevent propeller hub failure, which could lead to catastrophic failures in flight. The instrument was issued by the delegate of the Civil Aviation Safety Authority (CASA) in response to reports of propeller hub cracking, aiming to correct unsafe conditions identified in the original AD and its subsequent amendments. The policy objective of this legislation is to maintain the highest standards of airworthiness and safety within the aviation industry, ensuring that all aircraft and aeronautical products comply with necessary safety regulations.
Scope and Application
The Airworthiness Directive AD/PFP/17 Amdt 4 pertains to all McCauley model 1A103/TCM propellers with serial numbers ranging from 770001 through 777390 or alpha-numeric serial numbers from BC001 to but not including KC001, which are installed on but not limited to certain Cessna, Reims, and FA152 aircraft. This directive is issued under subregulation 39.1 (1) of the Civil Aviation Safety Regulations 1998 by a delegate of the Civil Aviation Safety Authority (CASA), and it mandates that the specified action be taken to address an unsafe condition. The directive requires an inspection and possible rework of the propeller hub in accordance with McCauley Alert Service Bulletin 221C, unless this has already been carried out according to ASB 221 Revision B or C. The initial inspection must occur before 3000 hours of propeller time in service since new, and subsequent inspections should take place at intervals not exceeding 800 hours of propeller time in service or 12 calendar months, whichever comes first. This amendment is effective from 27 November 2003 and follows previous amendments to the directive, which adjusted the inspection requirements and addressed issues such as the propeller mounting bolt torque and the specification of glass shot used for hub repairs.
Key Provisions
The Airworthiness Directive (AD) AD/PFP/17 Amdt 4 primarily applies to specific McCauley model 1A103/TCM[XXXX] propellers, identified by serial numbers ranging from 770001 through 777390 or alpha-numeric serial numbers BC001 through but not including KC001 (Section 1). These propellers are commonly used on Cessna 152, A152, Reims F152, or FA152 aircraft, although they may be installed on other aircraft as well. The AD mandates an inspection and, if necessary, a rework of the propeller hub to address potential hub cracking issues, as outlined in McCauley Alert Service Bulletin 221C (Section 2). This inspection must be carried out unless it has already been completed in accordance with McCauley Alert Service Bulletin 221 Revision B or C. The AD references FAA AD 2003-12-05 Amdt 39-13190 for further information (Section 3).
The AD imposes specific obligations on the owners and operators of the affected aircraft. They are required to conduct an initial inspection of the propeller hub before the propeller reaches 3000 hours of service since new. Following this initial inspection, reinspections must occur at intervals not exceeding 800 hours of propeller service time or 12 calendar months, whichever comes first (Section 4). These inspections must adhere to the instructions provided in McCauley Alert Service Bulletin 221C. The AD also allows for propellers previously deemed unserviceable to be returned to service if they meet the inspection and rework criteria specified in McCauley ASB 221C (Section 5).
Failure to comply with the AD could result in serious safety risks, as the directive aims to prevent propeller hub cracking, which can lead to catastrophic failure of the propeller in flight. The AD does not explicitly outline penalties for non-compliance, but non-compliance with CASA directives generally can result in enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions may include fines, legal proceedings, or grounding of the aircraft until compliance is achieved. The severity of the penalties would depend on the extent and impact of the non-compliance (Section 6).