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ATA MSG-3 SHM WG Detailed Proposal - Rev 1, dated 01/10/2009 2-3-1. MSI Selection … 1. Step 1. NOTE: Items within the Structural ATA Chapters (51-57) that lend themselves to System analysis (e.g., flight control hinge bearings, fuselage drains, door hinge and mechanisms, etc.) and SHM systems should be
Issue: MSG-3 analysis can take credit for “Power-up Built-In Tests” (PBITs) at two different analysis levels (related text is highlighted in yellow): Analysis Level 1: to select an EVIDENT functional failure. Extract from MSG-3 2015.1 Vol1 and Vol2: 2-3-5.
3.5 The MSG-3 revision valid at time of TC application is the minimum standard to be used for the development of an MRBR/MTBR for a new aircraft type. MSG-3 analysis should be applied to the complete certified aircraft, including the engines and propellers.
Maintenance Steering Group-3 (MSG-3) is a document developed by the Airlines For America (A4A) that presents a methodology to be used for developing acceptable scheduled maintenance tasks and intervals.
MSG-3 Logic Analysis The decision logic has two levels form each MSI: Level 1 requires the evaluation of each Functional Failure for the determination of the Failure Effect Category (FEC) Level 2 assesses the Failure Causes before selecting a task 15
MSG-3, Revision 1. In 1987, after using MSG-3 procedures on a number of new aircraft and powerplants in the first half of the 1980's, it was decided that the benefits of the experience so gained should be used to improve the document for future application; thus, Revision 1 was undertaken.
For each potential failure cause, the MSG-3 guidelines provide logic, referred to as “level two analysis,” to determine the appropriate scheduled maintenance tasks. There are five types of tasks that can be performed: Lubrication/Servicing, Operational/Visual Check, Inspection/Functional Check, Restoration and Discard.
