29NACA Vent intake for cooling air Left WingNACA Vent intake for cooling air
30Engine Cowl Panel Latches NacellesEDC Dump Exhaust Door (Engines 2 & 3) check for hinge (1 &4 have no hinge)Engine Cowl Panel LatchesOil Cooler Air Scoop
31Nacelles Oil Cooler / “Piccolo Tubes” Air Exit Duct look for birds nest“Gang” DrainOil Cooler Flap
32Nacelles Oil Cooler Inlet Generator Cooling Air Duct / Shutoff Valve …also used to cool eng mounts
33Check for proper blade angle (should see three holes) NacellesIslandForward SpinnerCheck for proper blade angle (should see three holes)CuffAft Spinner
34Main Mount Wheel WellGeneral Items:ChocksGrounding strapTires
35Bungee Springs – help with freefall extension in flight Counter Measures (If Installed) should see 1 pin per set of bucketsBrake Fuse cubic inches of fluid actuates shut offMechanical Down Lock LinkageLower drag strutLook For:Uneven Tread Wear Max Tread Wear: When tread pattern is worn to the bottom of the tread grooveFlat Spotting: due to prolonged standingSidewall conditions: Look for cracks, cuts, abrasions, bulges, gouges, cord pliesEnough tread for bounce flight?Fire ShieldEmergency Brake LineNormal Brake Lines
36Main Mount Wheel Well Shuttle Valve Brake Pucks (1,2,3 rule) 1. No ONE flush2. No 2 side by side not fluxing3. No THREE total not fluxing with brake actuation.
37Main Mount Wheel Well Emergency (Air) Hydraulic Brake Line Normal Hydraulic Brake Lines
38Main Mount Wheel Well Scissor Switch (Weight On Wheels) Brake Fuses check the arrow going down toward the deckAutomatic Safety Downlock Linkage (Mechanical Downlock)
39MLG Door Actuating Cylinder Main Mount Wheel WellMLG Door Actuating CylinderLook for Hyd leaks
40Main Mount Wheel WellUpper Drag StrutBungee SpringLower Drag Strut
41Main Mount Wheel WellUpper Jury StrutGear PinLower Jury Strut
42Check orange bolts for leaks 7. What does the orange paint mean? TD AMP6. What does this do?Check for excessive fluid/leaksCheck for leaks on the door actuatorCheck spring, this can breakCheck bolts
47E handle cables (normally covered) Main Mount Wheel Well“Pie Pans”E handle cables (normally covered)
48Pie Pan(access point to hot section) Fire Sensing ElementPie Pan(access point to hot section)E-Handle + power lever cables insideBleed air Valve (SEDC)Bleed Air plumbingHydrostatic Tester case5. Which nacelle is this?EDC Plumbing
52Sys Cap 15.75 gallon Usable 8.65 foaming space 5.7 unusable 1.4 Oil Tank Access PanelSys Cap gallon Usable foaming space 5.7 unusable 1.4NACA VentEDC Dump Door(Sealed Shut on 1&4)Make sure it is secure, a common access point for maintainersLab Seal- during engine shutdown, ports engine oilGang Drain, outboard engines don’t have engine breather, use gang drainHeat Exchanger intake vent
535th Stage Discharge Port 3. Purpose? “A” panel, make sure it is secure, a common access point for maintainersLab Seal Vent (eng oil)Oil Cooler IntakeOil Cooler Exhaust/DoorGang Drain
54View from under the prop aft spinner View from under the prop aft spinner. It is normal to have the “X” safety wire, also ok if it is around the perimeter. Drain Plug for the prop control.
55Blade(Base is scored to prevent cracking) #4 PropBlade(Base is scored to prevent cracking)IslandForward Spinner (Continuously Heated during prop deice)Spinner SkirtCuff
56Oil CoolerGenerator Cooling Door (Mechanical Function of the E-Handle) 4. Question, is there one on #1 engine, and if so, what is the function?
57Bomb Bay Safety Switch / Pin NoseBomb Bay Safety Switch / Pin