Maintenance Significant Item (MSI)
Maintenance Significant Item (MSI) – Under MSG-3, items identified by the design approval holder whose failure could cause one of the following effects: (1) It could affect safety on the ground or in...
View ArticleDiluter Demand Aviation Oxygen Systems
Diluter-Demand Oxygen System – An oxygen system that delivers oxygen mixed or diluted with air in order to maintain a constant oxygen partial pressure as the altitude changes. Diluter-demand oxygen...
View ArticlePressure Demand Aviation Oxygen Systems
Pressure Demand Oxygen System – A demand oxygen system that supplies 100 percent oxygen at sufficient pressure above the altitude where normal breathing is adequate. Also referred to as a pressure...
View ArticleAnnual Inspection
Annual Inspection – An Annual Inspection is complete inspection of an aircraft and engine, required by the Code of Federal Regulations, to be accomplished every 12 calendar months on all certificated...
View ArticleHeavy Maintenance
Heavy Maintenance – Heavy Maintenance is any maintenance, inspection, repair, or alteration a manufacturer has designated that requires specialized training, equipment, or facilities. The post Heavy...
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