AA.II.A.R2

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 9-9
  Chapter 9: Flight Manuals and Other Documents › Minimum Equipment Lists (MEL) and Operations With Inoperative Equipment

  ordinarily be required prior to flight. Using the deferral provision of 14 CFR, part 91, section 91.213(d), the pilot determines whether the inoperative equipment is required by type design, 14 CFR, or ADs. If the inoperative item ... accordance with 14 CFR part 43. For example, if the position lights (installed equipment) were discovered to be inoperative prior to a daytime flight, the pilot would follow the requirements of 14 CFR, part 91, section 91.213(d). The deactivation…

• 14 CFR Part 121 — Operating Requirements: Domestic, Flag, and Supplemental OperationsOpen
  14 CFR § 121.408 Training equipment other than flight simulation training devices.

  engineer, or supervisor prior to conducting training or checking with that equipment. (1) Each instructor, check pilot, check flight engineer or supervisor conducting training or checking, and each person conducting an inspection of the equipment who discovers a discrepancy, including ... missing, malfunctioning, or inoperative components, must record a description of that discrepancy and the date that the discrepancy was identified…

• Helicopter Flying Handbookp. 8-2
  Chapter 8: Ground Procedures and Flight Preparations › Preflight › Minimum Equipment Lists (MELs) and Operations with Inoperative Equipment

  ordinarily be required prior to flight. If able to use the deferral provision of 14 CFR section 91.213(d), the pilot determines whether the inoperative equipment is required by type design or 14 CFR. If the inoperative item ... installed equipment) were discovered to be inoperative prior to a daytime flight, the pilot would follow the requirements of 14 CFR section 91.213(d). The pilot must then decide if the flight can be accomplished prior to night, when…