Coast Guard Research Paper

U.S. Department of Homeland Security

United States
Coast Guard

AERONAUTICAL ENGINEERING MAINTENANCE MANAGEMENT MANUAL

COMDTINST M13020.1F

US. Department Homeland Secur

Commandant United States Coast Guard

United States Coast Guard

2100 Second Street, S.W. Washington, DC 20593-0001 Staff Symbol: G-SEA Phone: [phone] Fax: [phone]

COMDTINST M13020.1F

AFR
COMMANDANT INSTRUCTION M13020.1F Subj:

1 2&?3

AERONAUTICAL ENGINEERING MAINTENANCE MANAGEMENT MANUAL

1. PURPOSE. This letter promulgates the new issue of the Aeronautical Engineering Maintenance Management Manual, COMDTINST M13020.1F. Policies and procedures are outlined for the Aeronautical Engineering Community. 2. ACTION.
This MOE system consists of multi-dimensional indices and individual data points. These are taken collectively and considered over time to adequately reflect overall system performance. These measures are available through the Aviation Logistics Management Information System (ALMIS) Decision Support System (DSS). Engineering Officers at Air Stations must also monitor and measure the effectiveness of their maintenance efforts. I. AIRCRAFT AVAILABILITY. Availability of aircraft to perform operational missions is dependent on a wide range of variables. These include availability of flight and maintenance crews, special tools, ground support and launching equipment, spare parts, fueling apparatus, and other factors too numerous to mention. An Availability Index (AI) indicates the percentage of time that aircraft assigned to Air Stations are available to perform Coast Guard missions. It is defined as follows: AI=[100-NMCT] where NMCT=Not Mission Capable Total = NMCM + NMCS + NMCD (units) and NMCM is Not Mission Capable due to Unit-Level Maintenance NMCS is Not Mission Capable due to Supply NMCD (units) reflects the portion of Not Mission Capable Time due to Depot-Level Maintenance which is performed at a unit A more detailed definition of NMC categories can be found in CGTO PG-85–00–110, Chapter 3. 1. NMCT Target. The USCG target for aircraft availability is 71% (which equates to an NMCT of 29%). This is the goal for mature aircraft systems, but is only one of many indicators of maintenance effectiveness. NMCS Target. A target of 5% is a planning goal for NMCS rates (this equates to a parts availability rate of 95%). This target also serves as a justification for resources required to meet an NMCT rate of 29%. However, the Coast Guard must strive to meet these targets at minimum total system costs. The greatest