MIL-STD-1798C
5.5.2.11 Develop a program to identify component contribution to Not Mission Capable
(NMC) (S)(M)(B)) status.
Not Mission Capable is a maintenance aircraft status reporting term. The last letter in the status report indicates if the cause for the NMC is (S) Supply, (M) Maintenance, or (B) Both. Program Office shall develop a program to understand which components contribute most to "NMC" status. This shall be done for NMCS, NMCM and NMCB. If any aircraft is NMC, the data collection system must be changed to reflect which WUC is causing the NMC and indicate "(S)", "(M)", or "(B)" as the reason. The information will be extracted from the data collection system and stored/analyzed using the FSID.
5.5.2.12 Develop a program to identify components causing aborts.
The Program Office shall develop a program to identify components causing aborts. Aborts occur when a component critical to flight has failed. The system shall capture the abort data and store it by WUC. If significant negative trends develop, the components causing those trends shall be placed on the MSI listing.
5.5.2.13 Develop a preview and in-depth analysis program.
The Program Office shall develop a computerized preview and in-depth analysis program. Use of these analysis programs will typically be triggered by a MAP alert or a significant NMC level. A Preview analysis is simply a paper review of the data available. The main goal of the preview
is to validate the data and determine if a "real" problem exists. If the paper trail was in error, the analysis can be closed. If a more vigorous analysis is required to identify the problem, an in-
depth analysis shall be performed.
5.5.2.14 Develop a program to identify "Bad Actors."
The Program Office shall develop a program to identify "Bad Actors." The purpose of the Air Force Bad Actor Program is to identify serial-numbered items that enter the repair cycle at an abnormally high rate when compared to the total population of like assets, and to repair them or remove them from supply. The PIWG meeting is the forum where the Field and Depot personnel identify part numbers or WUCs for Bad Actor management (USAF see TO 00-20-1
TO 00-35D-54). The Program shall submit a listing of selected MSI components for possible submission to the Bad Actor Program. Selected WUCs will be documented and serially tracked,
assigned a Configured End Item (CEI) number, and be assigned the appropriate form to record historical data. (If an item being considered for Bad Actor management does not contain a
serial number, the selection of that LRU should not be excluded if it is cost effective to inscribe a serial number on each component.) The PIWG team will assign a minimum number of service life hours each WUC must fail at or below to be declared a "Bad Actor." This minimum number
of service life hours will be documented. When the WUC component fails, the length of service life used will be compared with the minimum number assigned to it. If it is less than the
minimum, the part will be submitted as a PQDR exhibit. When the Depot receives the component, every avenue will be exhausted to find the cause of the failure. If no cause can be found, it will be destroyed and become salvage.
5.5.2.15 EWIS Task Two - Develop a program for routine health assessment of Electrical
Wiring Interconnect System (EWIS).
The Program Office shall develop a program to perform routine health assessments of the aircraft Electrical Wiring Interconnect System (EWIS). The EWIS, also known as aircraft wiring, is defined as any wire, fiber-optic link, wiring or fiber device, or a combination of these items (including terminations) installed in any area of the aircraft for the purpose of transmitting electrical energy, signals, or data between two or more electrical end points. A failure of the
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