SECTION I. GENERAL INFORMATION
1-5. PRE-INSPECTION MAINTENANCE TEST FLIGHT (MTF).
1-11. MAINTENANCE OPERATIONAL CHECKS (MOCS).
Figure 1-1. Example of Using the Phased Maintenance Checklist
Figure 1-2. Final Record Checklist
Figure 1-4. Area Diagram (Sheet 1 of 2)
Figure 1-4. Area Diagram (Sheet 2 of 2)
Figure 1-5. Access Doors, Covers, and Panels (Sheet 1 of 3)
Figure 1-5. Access Doors, Covers, and Panels (Sheet 2 of 3)
Figure 1-5. Access Doors, Covers, and Panels (Sheet 3 of 3)
Figure 1-6. Serial Number Checklist (Sheet 1 of 2)
Figure 1-6. Serial Number Checklist (Sheet 2 of 2)
SECTION II. INSPECTION CHECKLIST
PREPARATION
NOSE AREA #1
1.6 Left jettisonable door for security
1.11 Dynamic absorber for security
LEFT FUSELAGE, AREA #2
2.9 Forward landing gear brake hoses for leakage, chafing, and damage
2.17 Inspect fuel pods for corrosion and electrical bonding
2.20 Service forward and aft landing gear struts
2.30 Lubricate aft landing gear grease fittings
2.33 Fluid drain lines for damage and obstructions
RIGHT FUSELAGE AREA #3
3.8 Remove, clean, inspect, and repack aft landing gear wheel bearings
3.14 Lubricate aft landing gear grease fittings
3.19 Inspect fuel pods for corrosion and electrical bonding.
3.26 Remove, clean, inspect, and repack forward landing gear wheel bearings.
3.32 Antennas and supports for damage and security
3.37 Main and auxiliary fuel tanks for evidence of leaks
NO. 1 ENGINE AREA #4
4.3 Remove engine drive shaft and adapters
4.10 Main fuel filter and in-line fuel filter bypass indicator for extension
4.16 Thermocouple bus bars for damage and security
4.18 Main fuel manifolds for security and signs of leaks
4.24 Drain and re-service engine oil.
4.28 EAPS drive shaft cowling seal for security and condition.
4.38 Install lockpins, check pin lanyards for security
NO. 2 ENGINE AREA #5
5.3 Remove engine drive shaft and adapters
5.10 Main fuel filter and in-line fuel filter bypass indicator for extension.
5.16 Thermocouple bus bars for damage and security
5.18 Main fuel manifolds for security and signs of leaks
5.24 Drain and reservice engine oil. Do not overfill.
5.28 EAPS drive shaft cowling seal for security and condition
5.38 Install lockpins, check pin lanyards for security
AFT ROTOR AND PYLON, AREA #6
6.7 Rotary-wing blade surfaces for delamination, unbonding, blisters, and cracks
6.10 Drive arms and collar for excessive wear at hinge points
6.13 Remove aft vertical shaft filter, inspect, clean and reinstall.
6.19 Blade dampner bearings for looseness
6.25 Power transfer unit for leakage and security.
6.28 Hydraulic reservoirs, coolers, and mount structure for cracks, buckling, and corrosion
6.33 Combining and engine transmission main lube filters
6.38 Work platforms, access doors, fairings and panels for damage, twisting, cracks, delamination, and corrosion
FORWARD ROTOR, CROWN, AND TUNNEL, AREA #7
7.4 Tunnel access covers for damage, cracks, twisting, delamination, and security.
7.10 Cruise guide indicator signal conditioner for condition and security
7.15 Power transfer unit for leakage and security
7.21 Longitudinal cyclic trim link for security
7.23 Forward transmission upper cover, mount lugs, mounting hardware, and adjacent structure for security, buckling, cracks, and corrosion
7.27 Inspect forward transmission oil cooler impeller installation.
7.33 Drain and service all rotary-wing head reservoirs
7.37 Rotary-wing blade surfaces for delamination, unbonding, blisters, and cracks
7.39 Pitch links (boots unzipped) for security, chafing, damage, corrosion, and proper installation of cotter pins and safety wire.
7.44 Swashplate for signs of damage, overheating, and accumulation of grease.
7.47 Blade dampner bearings for looseness
RAMP AREA #8
8.8 Ramp and cargo door coaming for damage, cracks, delamination, and security.
8.12 Remove and inspect aft transmission main and aux oil filters and debris detection screen
8.16 Aft synch shafts for chafing, scoring, and damage.
8.21 Utility hydraulic pump and hoses for leaks
8.27 Troop alarm arm bell and lights for condition and security.
8.36 Hydraulic fill module for leaks and security
8.39 Electrical wiring and connectors throughout the area for security.
CABIN AREA #9
9.13 Cabin windows for security, cracks, and cleanliness.
9.14 Rescue hoist support structure for damage
9.21 Emergency escape axe stowed
9.25 Troop alarm bell and lights for condition and security
COCKPIT AREA #10
10.6 Heater ducts and outlets above and below floor for cracks and security.
10.14 Dash actuator and connectors for security.
10.16 Integrated lower control actuator (ILCA) for leaks, cracks, and security of components.
10.21 Electrical wiring and connectors in flight control closet for security
10.27 Forward transmission main lube filter for extended warning indicator.
10.33 Pilots and copilots seat armor for installation and operation
10.41 Perform inspection of pitot-static system
10.42 Inspect and test OAT/FAT gage.
10.47 Right power distribution panel (opened) for security of components and loose or missing hardware
POWER ON CHECKS
P.7 Overhead panel and center console lights for proper operation.
P.12 Anticollision lights (upper and lower) for proper operation
P.17 Perform functional test of emergency cargo hook
P.22 Perform functional test of combining and engine transmission
P.28 Perform functional test of engine fuel shutoff valves and valve caution lights
P.33 Operate No. 2 engine gas producer (N1) and power turbine (N2) control systems
P.39 Perform functional test of emergency exit light system
P.45 Perform functional test of forward transmission XMSN OIL HOT caution light system
P.51 Perform avionics inspection IAW
P.55 Perform functional check of No. 1 engine EAPS bypass door.
P.60 Perform functional check of dynamic absorbers
FINAL INSPECTION
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS - TM-55-1520-240-PM_112
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS - TM-55-1520-240-PM_113
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS - TM-55-1520-240-PM_114
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS - TM-55-1520-240-PM_115
1-5. PRE-INSPECTION MAINTENANCE TEST FLIGHT (MTF).
1-11. MAINTENANCE OPERATIONAL CHECKS (MOCS).
Figure 1-1. Example of Using the Phased Maintenance Checklist
Figure 1-2. Final Record Checklist
Figure 1-4. Area Diagram (Sheet 1 of 2)
Figure 1-4. Area Diagram (Sheet 2 of 2)
Figure 1-5. Access Doors, Covers, and Panels (Sheet 1 of 3)
Figure 1-5. Access Doors, Covers, and Panels (Sheet 2 of 3)
Figure 1-5. Access Doors, Covers, and Panels (Sheet 3 of 3)
Figure 1-6. Serial Number Checklist (Sheet 1 of 2)
Figure 1-6. Serial Number Checklist (Sheet 2 of 2)
SECTION II. INSPECTION CHECKLIST
PREPARATION
NOSE AREA #1
1.6 Left jettisonable door for security
1.11 Dynamic absorber for security
LEFT FUSELAGE, AREA #2
2.9 Forward landing gear brake hoses for leakage, chafing, and damage
2.17 Inspect fuel pods for corrosion and electrical bonding
2.20 Service forward and aft landing gear struts
2.30 Lubricate aft landing gear grease fittings
2.33 Fluid drain lines for damage and obstructions
RIGHT FUSELAGE AREA #3
3.8 Remove, clean, inspect, and repack aft landing gear wheel bearings
3.14 Lubricate aft landing gear grease fittings
3.19 Inspect fuel pods for corrosion and electrical bonding.
3.26 Remove, clean, inspect, and repack forward landing gear wheel bearings.
3.32 Antennas and supports for damage and security
3.37 Main and auxiliary fuel tanks for evidence of leaks
NO. 1 ENGINE AREA #4
4.3 Remove engine drive shaft and adapters
4.10 Main fuel filter and in-line fuel filter bypass indicator for extension
4.16 Thermocouple bus bars for damage and security
4.18 Main fuel manifolds for security and signs of leaks
4.24 Drain and re-service engine oil.
4.28 EAPS drive shaft cowling seal for security and condition.
4.38 Install lockpins, check pin lanyards for security
NO. 2 ENGINE AREA #5
5.3 Remove engine drive shaft and adapters
5.10 Main fuel filter and in-line fuel filter bypass indicator for extension.
5.16 Thermocouple bus bars for damage and security
5.18 Main fuel manifolds for security and signs of leaks
5.24 Drain and reservice engine oil. Do not overfill.
5.28 EAPS drive shaft cowling seal for security and condition
5.38 Install lockpins, check pin lanyards for security
AFT ROTOR AND PYLON, AREA #6
6.7 Rotary-wing blade surfaces for delamination, unbonding, blisters, and cracks
6.10 Drive arms and collar for excessive wear at hinge points
6.13 Remove aft vertical shaft filter, inspect, clean and reinstall.
6.19 Blade dampner bearings for looseness
6.25 Power transfer unit for leakage and security.
6.28 Hydraulic reservoirs, coolers, and mount structure for cracks, buckling, and corrosion
6.33 Combining and engine transmission main lube filters
6.38 Work platforms, access doors, fairings and panels for damage, twisting, cracks, delamination, and corrosion
FORWARD ROTOR, CROWN, AND TUNNEL, AREA #7
7.4 Tunnel access covers for damage, cracks, twisting, delamination, and security.
7.10 Cruise guide indicator signal conditioner for condition and security
7.15 Power transfer unit for leakage and security
7.21 Longitudinal cyclic trim link for security
7.23 Forward transmission upper cover, mount lugs, mounting hardware, and adjacent structure for security, buckling, cracks, and corrosion
7.27 Inspect forward transmission oil cooler impeller installation.
7.33 Drain and service all rotary-wing head reservoirs
7.37 Rotary-wing blade surfaces for delamination, unbonding, blisters, and cracks
7.39 Pitch links (boots unzipped) for security, chafing, damage, corrosion, and proper installation of cotter pins and safety wire.
7.44 Swashplate for signs of damage, overheating, and accumulation of grease.
7.47 Blade dampner bearings for looseness
RAMP AREA #8
8.8 Ramp and cargo door coaming for damage, cracks, delamination, and security.
8.12 Remove and inspect aft transmission main and aux oil filters and debris detection screen
8.16 Aft synch shafts for chafing, scoring, and damage.
8.21 Utility hydraulic pump and hoses for leaks
8.27 Troop alarm arm bell and lights for condition and security.
8.36 Hydraulic fill module for leaks and security
8.39 Electrical wiring and connectors throughout the area for security.
CABIN AREA #9
9.13 Cabin windows for security, cracks, and cleanliness.
9.14 Rescue hoist support structure for damage
9.21 Emergency escape axe stowed
9.25 Troop alarm bell and lights for condition and security
COCKPIT AREA #10
10.6 Heater ducts and outlets above and below floor for cracks and security.
10.14 Dash actuator and connectors for security.
10.16 Integrated lower control actuator (ILCA) for leaks, cracks, and security of components.
10.21 Electrical wiring and connectors in flight control closet for security
10.27 Forward transmission main lube filter for extended warning indicator.
10.33 Pilots and copilots seat armor for installation and operation
10.41 Perform inspection of pitot-static system
10.42 Inspect and test OAT/FAT gage.
10.47 Right power distribution panel (opened) for security of components and loose or missing hardware
POWER ON CHECKS
P.7 Overhead panel and center console lights for proper operation.
P.12 Anticollision lights (upper and lower) for proper operation
P.17 Perform functional test of emergency cargo hook
P.22 Perform functional test of combining and engine transmission
P.28 Perform functional test of engine fuel shutoff valves and valve caution lights
P.33 Operate No. 2 engine gas producer (N1) and power turbine (N2) control systems
P.39 Perform functional test of emergency exit light system
P.45 Perform functional test of forward transmission XMSN OIL HOT caution light system
P.51 Perform avionics inspection IAW
P.55 Perform functional check of No. 1 engine EAPS bypass door.
P.60 Perform functional check of dynamic absorbers
FINAL INSPECTION
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS - TM-55-1520-240-PM_112
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS - TM-55-1520-240-PM_113
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS - TM-55-1520-240-PM_114
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS - TM-55-1520-240-PM_115
