24 Outboard Fuel Tank Vent Inboard Fuel Tank Vent Two #5 vent lines are interconnected and plumbed into this vent Vents are covered with flame arrestors
25 Left Wing Static Discharge Wicks Fuel Tank Vents
26 Left Wing Fuel Tank Vents
27 Left Wing Landing Light
28 Left Wing External Stores Racks (Wing Pylons)
29 Left Wing NACA Vent intake for cooling air
30 Nacelles EDC Dump Exhaust Door (Engines 2 & 3) check for hinge (1 &4 have no hinge) Oil Cooler Air Scoop Engine Cowl Panel Latches
31 Nacelles Oil Cooler / “Piccolo Tubes” Air Exit Duct look for birds nest Oil Cooler Flap “Gang” Drain
32 Nacelles Oil Cooler Inlet Generator Cooling Air Duct / Shutoff Valve …also used to cool eng mounts
33 Nacelles Forward Spinner Aft Spinner Cuff Island Check for proper blade angle (should see three holes)
34 Main Mount Wheel Well General Items: -Chocks -Grounding strap -Tires
35 Counter Measures (If Installed) should see 1 pin per set of buckets Mechanical Down Lock Linkage Bungee Springs – help with freefall extension in flight Brake Fuse 30 cubic inches of fluid actuates shut off Fire Shield Normal Brake Lines Emergency Brake Line Look For: Uneven Tread Wear Max Tread Wear: When tread pattern is worn to the bottom of the tread groove Flat Spotting: due to prolonged standing Sidewall conditions: Look for cracks, cuts, abrasions, bulges, gouges, cord plies Enough tread for bounce flight? Lower drag strut
36 Main Mount Wheel Well Shuttle Valve Brake Pucks (1,2,3 rule) 1. No ONE flush 2. No 2 side by side not fluxing 3. No THREE total not fluxing with brake actuation.
37 Main Mount Wheel Well Normal Hydraulic Brake Lines Emergency (Air) Hydraulic Brake Line
38 Main Mount Wheel Well Brake Fuses check the arrow going down toward the deck Scissor Switch (Weight On Wheels) Automatic Safety Downlock Linkage (Mechanical Downlock)
39 Main Mount Wheel Well MLG Door Actuating Cylinder Look for Hyd leaks
40 Main Mount Wheel Well Upper Drag Strut Bungee Spring Lower Drag Strut
41 Main Mount Wheel Well Gear Pin Upper Jury Strut Lower Jury Strut
42 TD AMP 6. What does this do? Check for leaks on the door actuator Check orange bolts for leaks 7. What does the orange paint mean? Check for excessive fluid/leaks Check bolts Check spring, this can break
44 Lower Drag Strut Bungee Spring Gear Actuator(Behind): Look for any hyd. fluid, downing discrepancy Mechanical Gear Release Cable Down Lock Switch Swivel Joint Jury Strut
45 Brake Pucks: 8. Bad if ?. Bad if ? Shuttle Valves Oleo 4-5” min
46 Main Mount Wheel Well HRD Pressure Gauges
47 Main Mount Wheel Well “Pie Pans” E handle cables (normally covered)
48 EDC Plumbing E-Handle + power lever cables inside Bleed Air plumbing Bleed air Valve (SEDC) Pie Pan(access point to hot section) Fire Sensing Element Hydrostatic Tester case 5. Which nacelle is this?
49 HRD Bottles (500psi Min) HRD Discharge line
50 Main Mount Wheel Well Pie Pans E handle cables (covered)
52 Heat Exchanger intake vent EDC Dump Door(Sealed Shut on 1&4) Oil Tank Access Panel Sys Cap 15.75 gallon Usable 8.65 foaming space 5.7 unusable 1.4 NACA Vent Lab Seal- during engine shutdown, ports engine oil Gang Drain, outboard engines don’t have engine breather, use gang drain Make sure it is secure, a common access point for maintainers
53 5th Stage Discharge Port 3. Purpose?Purpose? “A” panel, make sure it is secure, a common access point for maintainers Oil Cooler Intake Oil Cooler Exhaust/Door Gang Drain Lab Seal Vent (eng oil)
54 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.
55 #4 Prop Forward Spinner (Continuously Heated during prop deice) Island Cuff Spinner Skirt Blade(Base is scored to prevent cracking)
56 Oil Cooler Generator Cooling Door (Mechanical Function of the E-Handle) 4. Question, is there one on #1 engine, and if so, what is the function?
57 Nose Bomb Bay Safety Switch / Pin
58 Nose Air Multiplier Package AMP Oil Level Window
59 Nose APU Safety Switch Port Heat Exchanger Exhaust
60 TAS Probe Pilot Pitot Tube
61 10. Limit?
62 Air Multiplier Turbine (Check for cracks, scores, obstructions, missing blades)
64 Bomb Bay Safety Pin Hydraulic Fluid Mechanical cut-out
65 Nose Port Heat Exchanger Ram Air Inlet / Aux Vent
66 Nose LH Pitot Tube TAS Probe
67 Nose AIP Countermeasures Dispenser - Nose (Blankoff Plate shown)