AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(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 - Variable Pitch - McCauley AD/PMC/51 CSE Aviation 6/2007 Applicability: McCauley Propeller Systems (formerly Cessna Aircraft Co.) propellers that have a part number (P/N) and serial number (SN) listed in Table 1 of this AD, serviced by Oxford Aviation Limited, doing business as CSE Aviation. For propellers listed by SN in Table 1 overhauled or repaired by CSE after November 2003, or overhauled by an approved propeller repair facility after October 2003, do not apply to this AD. Table 1. - McCauley Propellers by P/N and SN CSE Work Order McCauley Propeller McCauley Propeller Number P/N SN Y04664 D2A34C67-NP 714384 Y04665 D2A34C67-NP 714390 Y03274 D2A34C67-NP 723093 Y04543 D2A34C67-NP 723094 Y02754 D2A34C67-NP 723112 Y04360 D3A32C90-MN 739415 Y02989 2A34C50-NP 743482 Y04285 2A34C203-C 744591 Y04467 D2A34C58-NO 745446 Y04279 3FF32L501-A 757134 Y04278 3FF32C501-A 757204 Y02802 3AF32C87-N 757861 Y04250 3FF32C501-A 761008 Y03294 2A36C23-P-E-G 761063 Y03724 D2A34C67-NP 766297 Y04251 3FF32C501-A 768699 Y03855 D2AF34C81-0 772113 Y04261 B2D34C214 775347 Y03963 B2D34C213 776696 Y04996 B2D34C213-B 783689 Y03060 D3A34C402 785093 Y04396 3FF32C501 787591 Y03058 C2A34C204 788168 Y04100 3AF34C503 793041 Y04183 3AF34C503-B 794440 Y04084 2D34C215 795642 Y02771 B2D34C220 795939 Y03924 3AF34C502 798390 Y03202 2A34C216 798602 Y04255 3AF34C503 798788 Y04663 3AF34C503 798978 Y01682 B2D34C214-A 800359 Y04067 3AF34C502 801561 Y04256 3AF34C502 801583 Y02605 3AF34C502 801584 Y04459 2D34C215 801873 Y04959 3AF32C93-NR 803586 Y04112 3FF32C501A 803966 Y03725 2A34C203-C 805071 Y05013 C2A34C204 805223 Y05053 3AF34C503 805387 Y05052 3AF34C502 805405 Y03297 2AF34C55-0 805970 Y04113 3FF32C501A 806424 Y02575 3FF32C501A 961655 Y03923 2D34C215-B 808006 Y03824 3AF32C509 811678 Y04008 3AF32C508 811912 Y04782 3AF32C509 812482 Y04322 D2AF34C302-A 812874 Y05073 3AF32C509-B 814111 Y05087 3AF32C506 820138 Y02810 3AF32C506 820811 Y02809 3AF32C507 820812 Y03692 C2A34C204-BC 821916 Y04402 3AF32C508 823133 Y02248 3AF32C507 970209 Y05032 3AF32C508-B 840763 Y04033 3AF32C509-B 841002 Y04495 B2D34C213B 851122 Y04397 3FF32C501 860047 Y04680 3AF34C502-B 860142 Y03847 D3A34C403-C 861694 Y04087 3A32C406-C 870695 Y03848 D3A32C90-R 881455 Y01748 D3A32C409 881583 Y05072 3AF32C508-C 890018 Y03723 D2A34C67-0 890108 Y05104 C3D36C415-C 890669 Y05032 D3A32C90-R 890683 Y05034 B3D34C405-C 891388 Y03410 3AF32C508-C 891956 Y04540 3AF34C502 891996 Y04063 2A34C203-B 900028 Y03196 3GFR34C701-DF 900684 Y04653 3A32C406-C 901189 Y03524 B2D3AC207-B 902858 Y04499 3AF32C509-C 911526 Y04498 3AF32C508-C 912012 Y04924 3AF32C509 912323 Y04305 3AF34C502 912386 Y04473 3AF32C508-C 921236 Y04474 3AF32C509-C 921239 Y04099 2D34C215-B 921659 Y04425 3AF32C509-C 930215 Y04991 D3A32C411-C 930228 Y02387 5JFR36C1003 930291 Y02386 5JFR36C1003 930294 Y03011 B2D37C229-B 930318 Y02632 B3D32C419 930644 Y03523 C2A34C204-BC 930703 Y03404 B2D34C213-B 931938 Y03474 4HFR34C762-H 940651 Y04116 3AF32C512-C 941278 Y04117 3AF32C512-C 941284 Y03475 4HFR34C762-H 941528 Y04941 3AF32C515 942101 Y03756 3AF32C515 942106 Y04825 B3D32C419-C 950588 Y04813 3FF34C501A 961655 Y02608 D3A34C403-C 962466 Y04454 3AF32C508-C 962536 Y04757 3AF34C502-C 962541 Y04550 3AF32C509-C 970276 Y02583 3AF32C522 971311 Y02582 3AF32C523 971324 Y05082 B3D36C424-C 980136 Y02914 B2D34C214 980409 Y03894 3AF32C87-R 981955 Y03893 3AF32C87-R 982877 Y02752 B2D34C213 983395 Y03538 B2D34C213-B 983396 Y04137 B3D36C432-C 992420 Y04595 B2D34C214-B 7710604 Y02895 B2D34C213 7710613 Y03403 3AF34C503 7810116 Y04621 D2A34C98-0 7810684 Y05054 3AF34C503 7910085 Y04821 3AF34C503 7910363 Y02889 3AF32C87NR 7910688 Y02890 3AF32C87NR 7910690 Y04721 C2A34C204-C 000679 Y04452 D3A32C88 010463 Y04216 2A34C209 010522 Y04942 3AF32C523 020312 Y05007 2A34C201-C 022421 Requirement: 1. Perform a document search of aeroplane and propeller records to determine if the propeller was involved in a ground strike. 2. Perform the following requirements: (a) Disassemble the propeller. (b) Clean all disassembled propeller parts. (c) Perform a visual inspection for the following conditions: (i) Wear or damage such as cracks, corrosion, scratches or nicks. (ii) Damage that indicates a previous ground strike (if applicable). (iii) Unacceptable wear or damage in areas where shot peening is required; paying particular attention to hub internal shot peened surfaces and blade shank peening. It is not necessary to strip the paint and corrosion protective coatings from the external surface of the blade. It is also not necessary to perform dimensional measurements on the external surface of the blade unless there is evidence of damage that has occurred since CSE returned the propeller to service. (d) Inspect threaded surfaces of threaded blade shanks with a 10X magnifying glass for scratches parallel to retention threads in the thread root of the first four outboard blade threads. If the retention threads are scratched, repair is not allowed. (e) Confirm that CSE Aviation correctly performed repairs or modifications listed in the manufacturer's maintenance instructions. (f) Repair and replace with serviceable parts, as necessary. (g) Assemble and test. Definitions: For the purposes of this AD: (1) Overhauling a propeller is not necessary to comply with the requirements specified in Requirement 2 of this AD. If you do not overhaul the propeller, the TSO does not change. (2) Unacceptable wear is wear or damage that can penetrate the shot peen compressive layer. Note: FAA AD 2006-24-07 Amdt 39-14836 dated 21 November 2006 refers. Compliance: 1. Within 30 days after the effective date of this AD. 2. If the propeller was involved in a ground strike, within 10 flight hours (FH) time-in-service (TIS) after the effective date of this AD, or 2 years after the effective date of this AD, whichever is earlier. For all propellers listed by SN in Table 1 of this AD, not involved in a ground strike using the compliance schedule detailed in Table 2 of this AD. Table 2. - Compliance Schedule If the time-since-overhaul (TSO) for the propeller on the effective date of this AD is … Then perform the requirements of paragraph (j) or paragraph (k) of this AD within … (1) 1,500 FH TSO or more. 200 FH TIS after the effective date of this AD, but do not exceed 2 years after the effective date of this AD. (2) More than 1,000 FH TSO, but fewer than 1,500 FH TIS. 350 FH TIS after the effective date of this AD, but do not exceed 2 years after the effective date of this AD. (3) 1,000 FH TSO or fewer. 500 FH TIS after the effective date of this AD, but do not exceed 2 years after the effective date of this AD. This Airworthiness Directive becomes effective on 7 June 2007. Background: This AD pertains to certain McCauley propellers serviced by Oxford Aviation Services Limited, doing business as CSE Aviation, in the United Kingdom between September 1998 and October 2003. This AD requires inspecting the propeller blades and other critical propeller parts for wear and mechanical damage. This AD results from findings that CSE Aviation failed to perform some specific inspections and repairs. The issuing of this AD is to detect unsafe conditions that could result in a propeller blade separating from the hub and loss of control of the aeroplane. David Punshon Delegate of the Civil Aviation Safety Authority 27 April 2007