Downloaded from https://www.everyspec.com ADS-39A (HDBK) 3.3.4.3.5.2 Each clutch test assembly shall be subjected to 5 hours of overrunning (disengaged), with the driven (input) side at 100% speed and the output side stationary. 3.3.4.3.5.3 Each clutch test assembly shall be subjected to 5 hours of overrunning (disengaged), with the driven (input) side at 100% speed and the output side at the idle speed of the engine used in that particular installation. 3.3.4.3.5.4 Each clutch test assembly shall be subjected to 25 hours of endurance testing (engaged) at the maximum torque capability of the associated gearbox/input.
3.3.4.3.5.5 At the conclusion of the clutch performance test, the test assembly shall be disassembled in accordance with the SOW to allow a complete evaluation (dimensional, visual, NDI) of the test component and associated assembly components. Components shall be subjected to nondestructive test procedures as required to insure no adverse wear or damage is present. The Government reserves the right to witness the teardown and evaluation, and to provide written action items (chits) to the candidate alternate source. The candidate alternate source shall be responsible for addressing all concerns raised in the post-test evaluation of the test component and test assembly.
3.3.4.2.6 Approval shall be based on the wear characteristics of the test component or assembly at the conclusion of testing, as determined by the Government. In the event unacceptable wear or other damage is present, the candidate alternate source shall take appropriate actions to revise the manufacturing process in order to produce an acceptable component. The candidate alternate source may be required to repeat the endurance test in whole or in part with new or reworked test components to insure any action taken has the desired result. 3.3.4.4 Other Tests 3.3.4.4.1 Other tests may be required on specific components and assemblies.
The test requirements will be provided for these tests upon request. These components and assemblies are identified in Attachment 1. 3.3.5 Approval 3.3.5.1 Approval of Engineering Test results shall be based upon successful completion of all required evaluations and tests specified above. In the event unacceptable results are obtained, the candidate alternate source shall take appropriate actions to revise the manufacturing or assembly process in order to produce an acceptable component or assembly. The testing may be repeated in whole or in part with new or reworked test components (as determined by ATCOM Engineering) to insure any action taken has the desired result. 10