TO Number: 15A1-3-40-3 - SLAVE AIR PRESSURE REGULATOR - OVERHAUL INSTRUCTIONS WITH ILLUSTRATED PARTS BREAKDOWN (IPB) for Part Numbers: 57070, 18-54910-1
TO Number: TM 55-1520-236-23P-1 - AH-1 - AVIATION UNIT AND INTERMEDIATE REPAIR PARTS AND SPECIAL TOOLS LIST FOR HELICOPTER ATTACK for Part Numbers: AH1-P, AH-1E, AH-1F
