Page 10 of 10
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE DOUGLAS DC-8-63/63F
STRUCTURE INSPECTION PROGRAM Overhaul Inspection & Period Check Period Fuselage (Continued) Left and Right Horizontal Stabilizer Leading Edge, Zone 75 L/R 2E Forward Face of Stabilizer Front Spar, Zone 75 L/R E Left and Right Horizontal Stabilizer Outer Panel, Zone 76 L/R 4E Horizontal Stabilizer Center Section, Zone 77 2E Left and Right Elevator and Tabs, Zone 78 L/R E Vertical Stabilizer Leading Edge, Zone 79 2E Vertical Stabilizer Front Spar to Rear Spar, Zone 80 2E Vertical Stabilizer Tip, Zone 81 3E Rudder and Tab, Zone 82 2E Rudder Hinge Fittings and Damper E Horizontal Stabilizer Tip, Zone 83 L/R 2E Left and Right Aft Fillet, Zone 84 L/R 2E Effective date ____________________
---------------------------------------------------------------- ---------------------------------------------------------------- FIGURE 30. OPERATIONS SPECIFICATIONS AIRCRAFT MAINTENANCE
- LOCKHEED MODEL 300 (C-141A) Form Approved.
UNITED STATES OF AMERICA Budget Bureau FEDERAL AVIATION AGENCY No. 04-R075.
WASHINGTON PART D Page 1 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A)
APPLICABILITY Lockheed fuselage serial numbers 6285 and up. For aircraft with fuselage serial numbers other than stated, Maintenance Specifications will be individually established. Overhaul and inspection intervals apply to components and appliances identified in Lockheed Service Manual Publication SMP 231 dated June 1, 1967, and revisions thereto.
EFFECTIVITY Subject to the submission of acceptable maintenance technical data to an authorized representative of the FAA.
INSPECTION/CHECK REQUIREMENTS The basic requirements for performing these inspections and checks are as specified in Part I of Lockheed Service Manual Publication SMP 231 dated June 1, 1967, and revisions thereto.
"A" INSPECTION/CHECK To be accomplished each service calendar day.
"B" INSPECTION/CHECK To be accomplished at intervals not exceeding 125 hours time in service after the preceding "B" or "C" inspection/check period.
"C" INSPECTION/CHECK To be accomplished at intervals not exceeding 500 hours time in service after the preceding "C" inspection/check period.
AIRFRAME STRUCTURAL INSPECTIONS The frequency and procedure for performing these inspections will be accomplished as specified in Part I and Part III of Lockheed Service Manual Publication SMP 231 dated June 1, 1967, and revisions thereto.
SPECIAL INSPECTIONS The frequency and procedures for performing these inspections will be accomplished as specified in Part IV of Lockheed Service Manual Publication SMP 231 dated June 1, 1967, and revisions thereto.
Effective date ____________________ Page 2 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A)
TERMINOLOGY DEFINITION Unless otherwise stated herein, the time limitations are listed in aircraft operating hours. Letters and terms used denote the following:
"OC" = On Condition "EO" = Engine Overhaul "6 Months" = Six months calendar time "5 Years" = Five years calendar time "E.T.I." = Elapsed time indicator hours "5000 Starts" = Quantity indicated on unit start counter "A" = Daily Check (Part I) "B" = "B" Check (125 hours) (Part I) "C" = "C" Check (500 hours) (Part I) "2C" = Second "C" Check (Part I) "3C" = Third "C" Check (Part I) "6C" = Sixth "C" Check (Part I) "EC" = Engine Change "EO" = Engine Overhaul "EO/FC" = Functional Check required at Engine Overhaul "S" = Special Inspection (Part IV) "ST" = Structural Inspection (Part III) Effective date ____________________ Page 3 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A) Overhaul Inspection and Period Check Period Air Conditioning, Chapter 21 OC A B C 2C S Box, Temperature Control OC C 2C Control, Fan and Venturi, Cabin Pressure 6,000 C Control, Venturi, Cabin Pressure OC C Controller, Cabin Pressure, Automatic 3,000 A B C 2C Controller, Cabin Pressure, Manual 6,000 A B C 2C Fan Cooling, Electrical Equipment 12,000 C Fan Cooling, Electronic Components 6,000 C Heat Exchanger, Primary and Secondary OC B C Indicator, Air Pressure, Dual OC A B C Indicator, Rate of Climb 12,000 A B C Indicator, Pressure Cabin Altitude and Diff. Pressure 6,000 A B C Indicator, Temperature OC A B C Regulator, Pressure, Jet-Pump OC C Sensor, Temperature OC C 2C Switch, Warning, Cabin Low Pressure OC C Transmitter, Pressure, Air OC C Turbine Assembly, Refrigeration 3,000 B C 2C Valve, By-Pass Turbine 12,000 C 2C Valve, Diverter, Air Conditioning 12,000 C Valve, Flow Control and Shut-Off (Air Conditioning) 12,000 C Valve, Flow Control, Electronic Cooling 12,000 C Valve, Modulating, Floor Heat, Cargo Compartment 3,000 C Valve, Outflow, Cabin Pressure 6,000 C Valve, Regulator, Air Pressure 6,000 C Valve, Relief, Air Pressure 12,000 C Valve, Shut-Off, Alternate Air, Flight Station 12,000 C Valve, Shut-Off, Floor Heat, Cargo Compartment 12,000 C Valve, Shut-Off, Primary Heat Exchanger Ejector 12,000 C Valve, Shut-Off, Ram Air Vent 12,000 C Valve, Solenoid, Emergency Depressurization OC C S Valve, Temperature Control, Cabin 12,000 C Water Separator, Air Conditioning OC B C S
Auto Flight, Chapter 22 OC A B C 2C S Actuator, Servo AFCS 6,000 C Actuator, Servo Yaw Damper 6,000 C Compensator, Mach Trim 3,000 C 2C S Computer, Aileron, AFCS 1,000 C Computer, Elevator, AFCS 1,000 C Computer, Yaw Damper 1,000 C Effective date ____________________ Page 4 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A) Overhaul Inspection and Auto Flight, Chapter 22, Continued Period Check Period Control, Mach Trim OC A B C 2C Control Panel, Yaw Damper OC A B C Gyro-Rate, Single Axis 3,000 B C Gyro-Rate, Two Axis 3,000 B C Indicator, Trim, AFCS 6,000 A B C Mounts, Servo, Aileron and Elevator OC C Mounts, Servo, Yaw Damper OC C Panel, Control, AFCS 3,000 A B C Sensor, Control Wheel Force 12,000 C Transmitter, Mach Trim Compensator 12,000 C 2C Vertical Gyro, AFCS 1,000 C Communications, Chapter 23 OC A B C S ST Control, Intercommunications OC A B C S ST Requirements for additional equipment may be determined by assigned inspector.
Electrical Power, Chapter 24 OC A B C 2C S Battery OC A B C Constant Speed Drive (CSD) EO B C S Controller - Load 12,000 C Contractor 12,000 C Cooler - Oil CSD EO B C Frequency Meter 12,000 A B C Generator - Engine Driven 40 KVA EO B C Generator - APU Driven 40 KVA 6,000 B C Generator - Emergency Hydraulic
Driven OC B C 2C Indicator - Temperature CSD Oil 12,000 A B C S Loadmeter OC A B C Panel - Bus Protection OC C Panel - Generator Protection 9,000 C Panel - Protection Aux. Power 12,000 C Quick-Attach/Detach Assembly EO B C Regulator-Voltage 12,000 C Relay - "Bus Off" Indicator 12,000 C Relay - Emergency Bus Power 12,000 C 2C Relay - Essential Bus Power 12,000 C Relay - Frequency Sensitive 12,000 C 2C Relay - Isolated Bus 12,000 C 2C Relay - Isolated Bus Reverse Current 12,000 C 2C Relay - Main D-C Bus 12,000 C Tank, Oil, CSD EO B C Transformer - Rectifier Unit OC B C Sensor - Temperature CSD Oil 12,000 B C S Switch, Pressure, CSD Oil 12,000 B C Voltmeter 12,000 A B C Effective date ____________________ PAGE 5 of 12 PAGES
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A) Overhaul Inspection & Period Check Period Equipment & Furnishings, Chapter 25 OC A B C ST Belt, Flight Crew Safety 6,000 A B C Belt, Passenger Type Safety 6,000 A B C Galley - Aircraft Type, Crew 12,000 A B C ST Goggles, Smoke OC A B C Harness, Aircraft Safety, Shoulder 6,000 A B C Kit, First Aid, Medical 6 months A B C Ladder Assy. - Emergency Exit OC A B C Lavatory - Crew 12,000 A B C ST Rope Assembly - Escape OC A B C Seats - Flight Station 12,000 A B C Winch - Cargo OC C Fire Protection, Chapter 26 OC A B C S ST Amplifier - Smoke Detection OC B C
Cable - Flex OC B C S ST Control Unit - Fire Warning OC A B C S Detector - Smoke OC B C Element - Sensing OC A B C S Extinguisher - Fire, Portable CO2 * A B C S Extinguisher - Fire, Dry Chemical, Portable * A B C S Generator - Fire Warning (Tone) OC A B C S Horn, APU Fire Warning SDU-1A OC A B C S Keyer, Engine Overheat OC A B C S Sphere-Charged, and Operating Head, APU and Engine * B C S Valve, Fire Extinguisher, Two-Way Check OC C S * Hydrostatic and life limits shall be entered here and shall not exceed those set forth in Part 173, Chapter I, Subtitle "B" of CFR Title 49.
Flight Controls, Chapter 27 OC A B C 2C S ST Actuator - Aileron Trim and Transmitter Assembly 6,000 B C Actuator - Aileron Artificial Feel (Cartridge) 6,000 B C Actuator - Elevator, Artificial Feel "Q" 3,000 B C Actuator - Rudder Artificial Feel (Cartridge) 6,000 B C Actuator - Flap Inboard and Outboard 6,000 A B C Actuator - Rudder Pedal, Bungee (Rudder Pedal Steering) 6,000 B C Actuator - Rudder Trim & Transmitter Assembly 6,000 B C Actuator - Spoiler Control, Cable Servo 6,000 B C Actuator - Spoiler Control Servo 6,000 B C Actuator Assembly - Stabilizer Trim (PITCH) 6,000 B C 2C Actuator Assembly - Aileron Tab Lockout 6,000 B C Actuator Assembly - Control Column Pusher 6,000 B C Effective date ____________________ Page 6 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A)
Overhaul Inspection and Flight Controls - Chapter 27 Period Check Period Continued Actuator Assembly - Pitch Trim Arming 6,000 B C 2C Aileron Assembly OC A B C ST Brake Assembly - Flap Asymmetry 12,000 B C 2C Broken Cable Detector, Wing Flap OC B C 2C Carriage Assembly - Flap Inboard and Outboard 6,000 B C Chain and Cable Assembly - Flap Asymmetry OC B C 2C Computer Amplifier - Flap Asymmetry System 6,000 B C 2C Computer, Stall Warning and Prevention 3,000 B C Control Assembly - Aileron Power 6,000 B C Control Assembly - Elevator Power 6,000 B C Control Assembly - Rudder Power 6,000 B C Control Column Assembly OC B C ST Elevator Assembly OC A B C ST Flap Assembly - Inboard and Outboard OC A B C ST Gear Box Assembly - Flap Drive 6,000 B C Indicator - Aileron Trim 12,000 C Indicator - Flap Position 12,000 C Indicator - Pitch Trim 12,000 C 2C Indicator - Rudder Trim 12,000 C Indicator - Spoiler Position 6,000 C 2C Limit Switch - Flap Position 6,000 B C Regulator Assembly - Control Cable Tension (All Control Systems) OC B C ST Rudder Assembly OC A B C ST Shaker - Control Column 12,000 B C Spoiler Panels - Inboard, Outboard Upper and Lower OC A B C ST Transmitter, Angle of Attack 6,000 B C Transmitter - Flap Drive Sprocket, Position 12,000 C 2C Transmitter - Flap Position 6,000 C Transmitter - Pitch Trim Position 6,000 C 2C Transmitter - Spoiler Position 6,000 C 2C Valve, Flow Control, Pitch Trim 6,000 B C Valve, Spoiler, Shutoff, Manual OC C Fuel System, Chapter 28 OC A B C 3C S ST Actuator, Fuel Shut-Off Valve 12,000 C Control Unit, Fuel Sensing 12,000 C Indicator, Fuel Pressure 12,000 A B C Indicator, Fuel Tank Quantity 12,000 A B C 3C S Indicator, Total Fuel Quantity 12,000 A B C 3C S Pump, Fuel Boost 6,000 A B C Pump, Fuel, SPR Drain 12,000 A B C
Switch, Boost Pump Low Pressure Warning OC A B C Effective date ____________________ Page 7 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A) Overhaul Inspection and Fuel System, Chapter 28 Continued Period Check Period Switch, Fuel Inlet Pressure OC A B C Tank Unit, Fuel Quantity OC A B C 3C S ST Transmitter, Fuel Pressure 12,000 A B C Valve, APU Fuel Shut-Off Supply OC A B C Valve, Fuel Level Control 12,000 A B C ST Valve, Fuel, Manual Shut-off OC C S ST Valve, Fuel Shut-Off 12,000 A B C S ST Hydraulic Power, Chapter 29 OC A B C 2C 3C 6C S ST Accumulator 12,000 A B C ST Filter-Air Vent Line OC B C 2C S Filter - Hydraulic OC B C 3C S Fuse - Hydraulic OC B C Gage - System Pressure, Direct Reading OC A B C S Indicator, Hydraulic Pressure 12,000 A B C S Pump - Suction Boost, Hydraulic Driven 6,000 B C S Pump - Hand Operated OC B C 6C Pump - Hydraulic, Engine Driven 4,000 B C S Pump - Hydraulic, Electric Driven 6,000 B C S Pump - Suction Boost, Electric Driven 6,000 B C S Pressure Transmitter 12,000 B C S Reservoir OC A B C S Snubber - Pressure Line OC C Switch - Low Pressure Warning OC C Valve - Interconnect OC C Valve - Inline Relief, Case Drain OC C Valve - Motor Operated, Shut-Off 12,000 C Valve - Pressure Relief (3560) 12,000 C Valve - Pressure Shut-Off 12,000 C S Valve - Solenoid Operated, 3-way 12,000 C Valve - Solenoid Operated, 4-way 12,000 C Valve - Drain Line Shut-Off OC C Ice and Rain Protection, Chapter 30 OC A B C S
Auto-Transformer, Windshield Heat OC C Box, Control, Windshield Heat OC C Control Box, Temperature Sensing Rain Removal 6,000 C Controller, Temperature, Empennage De-Icing System OC C Detector, Ice OC C Nozzle, Rain Removal OC C Sensor, Temperature Control, Wing Anti-Ice OC C Switch, Overheat, Wing Anti-Ice OC C Valve, Drain, Windshield Rain Removal OC C Valve, Modulating, Wing Anti-Ice 12,000 C Effective date ____________________ Page 8 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A) Ice and Rain Protection, Overhaul Inspection and Chapter 30 Continued Period Check Period Valve, Pressure Regulating and Shut-Off, Rain Removal 12,000 C Valve, Pressure Relief, Rain Removal Duct OC C Valve, Shut-Off, Rain Removal 12,000 C Windshield, NESA OC A B C Instruments, Chapter 31 OC A B C S Accelerometer 12,000 A B C Accelerometer, Sensor, Flight Recorder 3,000 C Clock OC A B C Recorder, Flight 3,000 A B C Landing Gear, Chapter 32 OC A B C 6C S ST Actuator, MLG Downlock 12,000 A B C Actuator, NLG Steering 9,000 A B C Actuator, NLG Up-Down Lock 12,000 A B C Actuator, Uplock, MLG 12,000 A B C Assembly, MLG 9,000 A B C Assembly, NLG 9,000 A B C Brake Assembly, MLG OC A B C Control Box, Anti-Skid 3,000 B C Control Box, Touchdown 6,000 B C Control Panel, Landing Gear OC A B C
Cylinder, MLG Actuating 6,000 A B C Cylinder, NLG Actuating 12,000 A B C Detector, Anti-Skid 6,000 C Fuse, Hydraulic Brake 12,000 B C Horn, Warning OC A B C Indicator, Brake Pressure OC A B C Indicator, Panel, Bogie Position OC A B C Relay, MLG Up and Locked @ OC C Relay, Touchdown OC C Tire, MLG OC A B C Tire, NLG OC A B C Transmitter, Pressure, Brake 12,000 B C Uplock, MLG 12,000 A B C Valve, By Pass, Manual OC C Valve, Control, Dual Brake Anti-Skid 6,000 C Valve, Downlock Selector, MLG 12,000 B C Valve, Dual Metering Brake (Pilot) 12,000 B C Valve, Flow Regulation, MLG OC C Valve, Flow Regulation, NLG OC C Valve, Main Brake Metering 12,000 C Valve, Pressure Relief (1200) 12,000 C 6C Valve, Selector, Brake 12,000 C Valve, Selector, MLG 12,000 C Effective date ____________________ Page 9 of 12
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A) Overhaul Inspection and Landing Gear, Chapter 32 Continued Period Check Period Valve, Selector, NLG 12,000 C Valve, Selector, NLG Emergency, Manual OC C Valve, Shutter, Brake OC C Wheel, MLG OC A B C Note (1) Wheel, NLG OC A B C Note (1) Note (1): Visually inspect at each tire change and perform non-destructive inspection at each 15th tire change.
Lights, Chapter 33 OC A B C ST Control - Master Caution, Annunciator OC A B C ST Light, Anti-Collision 3,000 A B C ST Light, Emergency Exit 6,000 A B C ST Light, Landing 3,000 A B C ST
Lights, Navigation OC A B C ST Navigation, Chapter 34 OC A B C 2C S Altimeter - Pressure 6,000 A B C 2C S Amplifier - Slaving, Gyro Compass 3,000 B C S Amplifier - Airspeed - Mach Number 3,000 B C S Amplifier - Altitude - Vertical Speed 3,000 B C S Amplifier - Servo Gyro Compass 3,000 B C S Amplifier - Audible Warning OC B C S Compass - Magnetic, Pilots Standby OC B C S Computer - Central Air Data 1,000 B C S Computer - Flight Director 3,000 B C S Controller - Gyro Compass 3,000 A B C S Flux Valve and Compensator 3,000 B C S Generator - Audible Warning OC B C S Gyro-Directional 2,000 B C S Gyro-Rate Switching 3,000 B C S Gyro-Vertical 2,000 B C S Indicator - Attitude Director 2,000 A B C S Indicator - Airspeed, Mach Number 3,000 A B C 2C S Indicator - Airspeed, Standby 6,000 A B C 2C S Indicator - Altitude, Vertical Speed 3,000 A B C S Indicator - BDHI 2,000 A B C S Indicator - Horizontal Situation 2,000 A B C S Indicator - Total Air Temperature OC A B C S Keyer, Audible Warning (Underspoiler Speed Warning) OC B C S Power Supply - Gyro Compass 3,000 B C S Probe - Total Air Temperature OC A B C S Rack - Gyro Compass OC B C S Sensor - Rate of Turn 2,000 B C S Tube - Pitot Static OC A B C 2C S Requirements for additional equipment may be determined by assigned inspector.
Effective date ____________________ PAGE 10 of 12 PAGES
OPERATIONS SPECIFICATIONS
AIRCRAFT MAINTENANCE LOCKHEED MODEL 300 (C-141A) Overhaul Inspection & Oxygen Chapter 35 Period Check Period Oxygen OC A B C S Cylinder Assembly * A B C S Pressure Reducer 5 years A B C S