The 76 Aircraft Maintenance Group requests the procurement of four (2) Diesel-Powered Cabin Pressure Testers (CPTs) (PN:99421-100) specifically designed and certified for use on B-1 aircraft to replac... The 76 Aircraft Maintenance Group requests the procurement of four (2) Diesel-Powered Cabin Pressure Testers (CPTs) (PN:99421-100) specifically designed and certified for use on B-1 aircraft to replace the existing equipment. This tester is needed to measure any pressure leaks, which could degrade operational ability.