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Operational check V/S Functional check

Operational check V/S Functional check

  • the terms operational check and functional check are being found in the aircraft maintenance manuals and could there be any difference between both this term? The answer is yes.
  • Operational Test is known as a procedure required to ascertain only that a system or unit is operable effectively. These tests should require no special equipment or facilities other than that installed on the aircraft. In simple terms, it's a qualitative test.
  • For Functional Test procedure required to ascertain that a system or unit is functioning in all aspects in accordance with the minimum acceptable system or unit design specifications. These tests may require supplemental support equipment and should be more specific and detailed than an operational test. 
  • It should contain all the necessary information to perform proficiency tests to maintain system or unit reliability at an acceptable level with tolerances limits.In simple terms Quantitative test with +-values.

  • Often the terms operational check and functional check are 

being found in the aircraft maintenance manuals and could 

there be any difference between both this term? The answer is 

yes.

  • Operational Test is known as a procedure required to 

ascertain only that a system or unit is operable effectively. 

These tests should require no special equipment or facilities other than that installed on the aircraft. In simple terms its a qualitative test.

  • For Functional Test procedure required to ascertain that a 

system or unit is functioning in all aspects in accordance with 

minimum acceptable system or unit design specifications. 

  • These tests may require supplemental support equipment and     

should be more specific and detailed than an operational test. 

It should contain all the necessary information to perform 

proficiency tests to maintain system or unit reliability at an 

acceptable level with tolerances limits.In simple terms 

Quantitative test with +-values.

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