58--INTERFACE UNIT,COMM

have not been achieved. Major changes are contemplated because the part has a low process yield or has demonstrated marginal performance during tests or service use. These changes will render the present part obsolete and unusable in its present configuration. Limited acquisition/repair from the pr

esent source is anticipated pending configuration changes. The subject item requires Government source approval prior to contract award, as the item is flight critical and/or the technical data available has not been determined adequate to