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9/27/01 AC 43.13-1B CHG 1 SECTION 5. AVIONICS TEST EQUIPMENT 12-70 GENERAL. Certificated indi- viduals who maintain airborne avionics equipment must have test equipment suitable to perform that maintenance. 12-71 TEST EQUIPMENT CALIBRA- TION STANDARDS. a. The test equipment calibration stan- dards must be derived from and traceable to one of the following: (1) The National Institute of Standards and Technology. (2) Standards established by the test equipment manufacturer. (3) If foreign-manufactured test equip- ment, the standards of the country, where it was manufactured, if approved by the Admin- istrator. b. The technician must make sure that the test equipment used for such maintenance is the equipment called for by the manufacturer or equivalent. (1) Before acceptance, a comparison should be made between the specifications of the test equipment recommended by the manu- facturer and those proposed by the repair facil- ity. (2) The test equipment must be capable of performing all normal tests and checking all parameters of the equipment under test. The level of accuracy should be equal to or better than that recommended by the manufacturer. (3) For a description of avionics test equipment used for troubleshooting, refer to the equipment or aircraft manufacturing in- struction manual. 12-72 TEST EQUIPMENT CALIBRA- TION. Test equipment such as meters, torque wrenches, static, and transponder test equip- ment should be checked at least once a year. c. National Institute of Standards and Technology traceability can be verified by re- viewing test equipment calibration records for references to National Institute of Standards and Technology test report numbers. These numbers certify traceability of the equipment used in calibration. d. If the repair station uses a standard for performing calibration, that calibration standard cannot be used to perform mainte- nance. e. The calibration intervals for test equipment will vary with the type of equip- ment, environment, and use. The accepted in- dustry practice for calibration intervals is usu- ally one year. Considerations for acceptance of the intervals include the following: (1) Manufacturer’s recommendation for the type of equipment. (2) Repair facility’s past calibration history, as applicable. f. If the manufacturer’s manual does not describe a test procedure, the repair station must coordinate with the manufacturer to de- velop the necessary procedures, prior to any use of the equipment. 12-73 – 12-83. [RESERVED.] Par 12-70 Page 12-25 (and 12-26)PDF Image | AFS-640
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