Page 102 - Global Project Management Handbook

4-10 STATE OF THE ART OF GLOBAL PROJECT MANAGEMENT

TABLE 4.4 Targets and Measurements to Improve A O
• Reliability—MTBF
• Maintainability—M CMT
• Scheduled maintenance requirements
• Logistics support infrastructure
• Spares availability
• Support equipment availability
• Personnel availability
• Facility capacity and utilization rate
• Transportation responsiveness
• Administration requirements

It is important to point out that the inputs for the calculations come from many differ-
ent sources. The reliability (MTBF) and maintainability (M CMT ) statistics must be provided
by the helicopter manufacturer. Identification of scheduled maintenance requirements and
time for performance of the tasks must come from the helicopter manufacturer. The
ALDT inputs may come from either the manufacture, the organization that the logging
company may contract for maintenance services, or internally within the logging company.
However, the most significant inputs (mission descriptions, mission time, and annual
number of missions) must be developed by the project team. As the project team studies
each helicopter to determine the one preferred for procurement, they must analyze the
possible options for improving A O . The possible options for improvement are listed in
Table 4.4. Each of these factors must be studied to ensure that every possible option has
been considered before making the final purchase decision.

OPERATION AND MAINTENANCE SUPPORT REQUIREMENTS

As seen earlier, achieving a desirable A O for a system requires having the necessary sup-
port resources to sustain operations. Additionally, Fig. 4.2 shows that most of costs
incurred for system ownership happen during the operational phase of the product life
cycle. Therefore, it is very important that the project team quantify the possible physical
resource package that will be required to operate and maintain the system over its opera-

tional life. Figure 4.13 illustrates that the combination of both operation and maintenance
functions required to support a system constitute the physical support package. Operational
support resources tend to be fairly easy to quantify because they consist mainly of opera-
tors, fuel, operator training, and operational facilities. Maintenance support resources are
far more difficult to quantify because a detailed knowledge of the design and construction
of the system is needed to identify specific requirements accurately.
Figure 4.14 shows the normal process for identification of maintenance support
resource requirements for any system. The process starts with identification of every item
within the system architecture that potentially will require any type of maintenance over
its life cycle. This identification should be based on the results of two engineering analy-
ses. These are a failure modes effects criticality analysis (FMECA) and a reliability-
centered maintenance analysis (RCM analysis). The FMECA identifies every way that
the system can fail. Every failure will require maintenance and therefore is the basis for
identification of total corrective maintenance (TCM) discussed earlier. RCM analysis is
used to develop the scheduled maintenance for a system to avoid or prevent unwanted
catastrophic failures while the system is being used. The results of RCM analysis are
realized in the total preventive maintenance (TPM), also discussed earlier. Both correc-
tive and preventive maintenance require support resources for accomplishment. The
maintenance significant items resulting from the FMECA and RCM analysis represent