MIL-STD-2173 (NOTICE 1), MILITARY STANDARD: RELIABILITY-CENTERED MAINTENANCE REQUIREMENTS FOR NAVAL AIRCRAFT, WEAPONS SYSTEMS AND SUPPORT EQUIPMENT (01 SEP 1999) [S/S BY MIL-HDBK-2173]., MIL-STD-2173, dated 21 January 1986, is hereby canceled and superseded by MIL-HDBK-2173(AS) dated 30 January 1998.