Document ID: chunk:federal_register_of_legislation:F2007L01392:body:0:p2
Version: federal_register_of_legislation:F2007L01392
Segment Type: other
Provision Reference: 
Character Range: 4240–8463

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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) 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