Applicability: | Hartzell Propeller Inc. (formerly TRW Hartzell Propeller) 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 in the United Kingdom. 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. - Hartzell Propellers by P/N and SN
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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) Except for blades installed new at the last CSE maintenance action, examine for: (A) Bent or damaged pitch change knobs. (B) Damage in the bore area of the blade shank. (C) Damage in the blade balance hole. (iii) Damage that indicates a previous ground strike (if applicable). |
Table 2. - Compliance Schedule
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This Airworthiness Directive becomes effective on 7 June 2007. | |||||||||
Background: | This AD pertains to certain Hartzell Propeller Inc. HC, BHC, and PHC series 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. |