Downloaded from https://www.everyspec.com ADS-39A (HDBK) 3.3.2.1 Inspection consists of using non-destructive techniques as needed to substantiate component or assembly compliance with drawing and specification requirements. Components which require compliance inspections are identified in Attachment 1. 3.3.2.2 Testing consists of metallurgical or material inspection, strength or physical property testing, endurance testing, and/or fatigue testing. The specific type of testing required for components and assemblies is identified in Attachment 1.
For those components and assemblies requiring both conformance inspection and testing, all inspections must be completed and inspection results approved before testing can begin. 3.3.3 Inspections 3.3.3.1 Compliance 3.3.3.1.1 One of the components produced by the candidate alternate source shall undergo a complete dimensional and nondestructive evaluation by a Government-approved facility to substantiate compliance with applicable drawing and specification requirements. The Government reserves the right to witness any or all of these inspections.
Requirements which cannot be substantiated after the component is completed (e.g., dimensions before shot peen, etc.) must be substantiated during processing of the component. 3.3.3.1.2 For Flight Safety Parts, the compliance inspection shall include an inspection of all Critical Characteristics. 3.3.3.1.3 Components which require compliance inspection are identified in Attachment 1. 3.3.3.2 Bevel Gears 3.3.3.2.1 Bevel gears shall undergo the following inspections. Inspections which cannot be performed on the final product shall be verified in-process by the Government. The Government reserves the right to witness any or all of these inspections.
3.3.3.2.1.1 Dimensional (e.g., Zeiss) inspection of gear tooth profile. 3.3.3.2.1.2 Backlash inspection. 3.3.3.2.1.3 Pitch runout and index variation. 3.3.3.2.1.4 Fillet size and shape. 3.3.3.2.1.5 Face and back angle. 3.3.3.2.1.6 Root depth. 3.3.3.2.1.7 Surface micro-finish. 5