Volume 1, Unit 4 Flashcards
What is reliability centered maintenance (RCM)?
System used to ensure equipment meets its life expectancy at a minimum cost
(reliability of equipment)
What is the goal of reliability centered maintenance?
Optimize engine time on wing through disciplined analysis and structured process to identify cost-effective and technically sound maintenance policies
What are the two classifications of failures?
- Potential
2. Functional
What is the process of trying to match modules with approximately the same amount of time left on them when assembling engines?
Module Matching
What is the Engine Trending and Diagnostics (ET&D) program?
Program that integrates hardware, software, maintenance, and diagnostic process to manage engine health
List the purposes of Engine Trending and Diagnostics
- Predict, detect, and conduct preemptive maintenance analysis of adverse trends
- Forecast time and material requirements days or weeks in advance to minimize engine not mission capable status (ENMCS) rates and maintenance man hours
- Reduce ship flow and increase serviceable spare engine levels
- Reduce life cycle costs and improve reliability by improved measurement of life used in critical components
- Increase average engine time on wing by eliminating time based removals
What is the primary goal of the Engine Trending and Diagnostics program?
Prevent damage to engines by prediction of performance degradation
(Preventative maintenance actions)
How do flight-line personnel use ET&D data?
Collect the data and transfer it to base engine maintenance shop for analysis
How do depot and product center engineers and technicians utilize the ET&D program?
Develop engine trend data and provide support to field users
What is the ET&D program designed to determine?
If an aircraft needs maintenance before the next flight/ next engine change
What are Centralized Repair Facilities (CRFs) designed for and what type of support do they provide?
A logistics option for combatant commanders to exercise in order to consolidate and provide intermediate-level maintenance support of war fighters
(Deployed backshop)
What does the centralized rotatable pool (CRP) provide?
sufficient numbers to maximize timely placement of serviceable assets where they are needed most, in lieu of waiting for the same items to be received, repaired, and shipped back to the originating supported unit.
Operating centralized rotatable pools rules should be mutually agreed upon by
Appropriate lead commanders
How are CIRF assets accounted for and tracked?
Production supervisors maintain accountability and tracking of CRF assets by using the AF portal to report daily status of these assets in accordance with prescribed instructions
What is depot maintenance?
maintenance performed on material requiring overhauling or rebuilding of parts, assemblies, subassemblies, and end items
Why does depot maintenance stock serviceable equipment?
Because it has more extensive repair facilities than those at base level
What type of maintenance does depot perform?
disassemblies, inspections, repairs, replacements, assembly/testing of components, engines and engine systems.
From where does the AF obtain depot maintenance?
- Organic Department of Defense Facilities
2. Private Sector Contractors
List the most common forms of depot level assistance
- Depot field teams
2. Contract field teams
What’s the primary objective of Comprehensive Engine Management System (CEMS)?
Obtain accurate info on the stats, condition, and location of engines, modules, gearbox’s in the AF inventory
What is used to collect and store info provided by different engine reporting systems?
Comprehensive engine maintenance systems (CEMS)
What are the primary objectives if the engine reporting system?
Maintaining timely and accurate engine inventories ans well s surveillance of base repair, transportation, overhaul, and historical data in order to forecast funding and replacement requirments
What section monitors engine removals and replacements and tracks components at the base level?
Base level engine maintenance
What are some of the functions of CEMS?
- Provides for AF readiness through the collection of info. which, when accumulated, idicates the overall view of capability
- Answer the question of how many engines and components are available at ny one time
- Provides for cost–effective use of available resources, since it allows components and engines to be shifted from places of excess to high-need areas
What are the two categories of status reporting?
1st. Engines and Modules
2nd. Tracked Components
What is the purpose of AFTO IMT 95?
Maintaining a permanent history of significant maintenance actions on end items of equipment including, but not limited to, aerospace vehicles, engines, engine modules, and designated -6 TO components
What should you do if an automated data system is not available for engine status reporting?
Use AFTO IMT 95 to manually record
In general, what conditions should be documented on the AFTO IMT 95?
Conditions that could have a bearing on the future maintenance of the equipment
What is the purpose of the Lead the Fleet/Pacer Engine Program (
Determines distress modes of an engine and its subsystems in the field
What is the Lead the Fleet/Pacer Engine Program?
Accelerated mission usage program that matures engines, modules, etc.
What type of information does the Lead the FLeet/Pacer Engine Program provide?
Early intelligence on equipment integrity, reliability maintainability before the majority of the fleet is impacted
Engineering data and procurement lead times for orderly updating and modification of the engine, engine controls, and accessories
List the Lead the Fleet/Pacer Engine Program objectives
- Accelerate Pacer items ahead of the operational fleet to identify potential premature component failures
- Accurately update scheduled maintenance requirements
- Rapidly advance item max. life limits so they are consistent with the capability of the hardware
- Provide early analysis of trending data to improve planning and forecasting n procuring initial and follow-on spares
- Identify hardware service life deficiencies and the areas that require redesign/rework before extensive production commitments are made
- Detect any unique durability problems that might force special schedule inspections
- Evaluate engine controls and accessories to include engine monitoring systems
- Provide lead time for solving maintenance issues, developing maintenance plans, and resource provisioning
How do participating units manage the Pacer engines?
At twice the normal flying rate until the items are at least 2 years ahead of the top 10% (high time) fleet engines
Which program does the Lead the Fleet/ Pacer Engine PRogram support?
The overall engine life cycle management plan
What are the two classifications of failures in the reliability centered maintenance (RCM) approach?
Potential and Functional
In the reliability centered maintenance approach, which preventative maintenance task is a scheduled inspection to detect a potential failure condition>
On condition
Which program integrates hardware, software, maintenace and diagnostics process to quantify and monitor/manage engine health?
Engine trending and diagnostics (ET&D)
The primary goal of Engine Trending and Diagnostics program is to prevent or limit damage to turbine engines by
early detection if performance degradation and/or failures
Centralized repair facilities provide support for
War Fighters
What drives the creation of a centralized rotatable pool?
Customer wait time and transportaion constraints
When a centralized repair facility ships a replacement asset to a deployed unit, who is responsible for ensuring all appropriate documentation is completed?
Centralized Rpair Facility personnel
Depot maintenance provides support to base-level technicians by
Providing technical assistance and performing repairs beyond their capability
Depot level support includes
- Depot Field Teams
2. Contract Field Teams
A primary objective of the engine reporting system is to
maintain accurate and timely engine inventories
The key to making the comprehensive engine maintenance system (CEMS) work is
accurate and timely data at the LOWEST level
You should record the removal and replacement of engine accessories on AFTO Forms
95
What is the purpose of the Lead the Fleet/Pacer Engine Programs?
Determine distress modes of an engine and its subsystem in the field
How many years ahead should participating units accelerate engines, modules, and accessories?
2 years
