Aircraft engines - USA Voorschrift, Technical Manual, 1-405 Aircraft mechanics tools - USA Voorschrift, Technical Manual, 1-425 Airplane structures - USA Voorschrift, Technical Manual, 1-410 Airplane hydraulic systems and miscellaneous equipment - USA Voorschrift, Technical Manual, 1-411 Aircraft electrical systems - USA Voorschrift, Technical Manual, 1-406 Applied physics for airplane mechanics - USA Voorschrift, Technical Manual, 1-750 Miscellaneous aircraft equipment - USA Voorschrift, Technical Manual, 1-416 Airplane structures - USA Voorschrift, Technical Manual, 1-410 Aircraft engine operation and test - USA Voorschrift, Technical Manual, 1-408 Airplane hydraulic systems - USA Voorschrift, Technical Manual, 1-411 Aircraft engine operation and test - USA Voorschrift, Technical Manual, 1-408 Aircraft engines - USA Voorschrift, Technical Manual, 1-405