scope:

This specification covers acceptance tests, by the statistical sampling plan (SSP), for all types of production aircraft engines or any related propulsion and power equipment requiring tear-down after the initial run.All references herein to equipment shall be construed to mean the item to which the SSP is applied. Application of the SSP shall be to a specific equipment type and model. When agreed upon by the Government representative and the contractor, substantially identical equipments of different model designations may be grouped together and presented to the procuring Service as one series for SSP evaluation.