Preflight

Cockpit

1. Canopy/Windscreen --------            Check controls, canopy stop screws, seals, cleanliness

2. First Aid Kit -----------------            Check secured and current

3. Free Air Temp Gage -------            Check security

4. Parachute ---------------------            Check condition and lanyard connected, check bottom pin

5. ELT ----------------------------            Check antenna cable attached

6. Restraint Harness -----------            Check condition

7. Trim Tabs --------------------            Set all to zero

8. Landing Gear Handle ------            Check Down

9. Accelerometer ---------------            Check within limits in both cockpits (+4.5/-2.3)

10. Alt Static Air Source -----            Normal

11. Starter, Autoignition, -----            Check off (both cockpits)

and all applicable         (A/C, NACWS, Avionics Master Switch)

Electrical Switches

12. Battery -----------------------            On, check 22v or 18v(GPU start), fuel quantity, gear position indicators, then battery off

13. Oxygen System ------------            Test

a. Oxygen Supply Control-Push on, clip in place

b. Supply Pressure Gage --            Check between 1,000 - 1,850 psi

c. Regulator Panel Levers -On, safety wired, 100% oxygen, normal

d. Oxygen Mask ------------            Connect

e. Connections --------------            Check for leaks

f. Flow Indicator ------------            Check

14. Controls ---------------------            Unlocked, lock stowed in two places

 

Cockpit Preflight Gouge

Front Cockpit

1. Two Inverters

     - Left of rudder pedals

     - Supply 26v AC and 115v AC power

2. Generator Control Panel

     - Right of rudder pedals

     - Regulates Generator output voltage between 27.0 - 29.5v DC

     - Provides reverse current protection (less than 25v)

     - Provides overvoltage protection (greater than 34v)

3. Gear and Flap Motors

     - Located below the floor panels, directly below the seat

4. Fuel Sump and Electric Fuel Pump

     - Located below your feet

 

Rear Cockpit

1. AOA Electronic Control Unit

     - White box

     - Right of the rudder pedals

     - Amplifies AOA probe signal to the AOA indicator pointer and indexer

2. Vertical Gyro

     - Aft of the left console

     - Black box

     - Sends pitch and roll signals to attitude indicators on both instrument panels

 

Preflight - Exterior Inspection - Left Wing

1. Top of Wing -----------------            Inspect for cracks, deep scratches, tears, wrinkles, popped rivets, and bulges

2. Flap ----------------------------            Check for excessive free play, security, and overall condition

3. Aft Fuel Tank Drain --------            Check for leakage

4. Left Main Landing Gear ---            Check general condition of tire and wheel assembly, check brake lines and fittings for security and leakage

5. Aileron ------------------------            Check for free play, servo action of the trim tab, trim tab linkage, nuts cotterkeyed, aileron hinges and bonding braids, trim tab hinge pins, and static wicks all secure

6. Wingtip -----------------------            Check for cracks, scratches, and condition of navigation lights, glareshield security, and holes unobstructed

7. Underside of Wing ---------            Check for leaks, cracks, deep scratches, tears, wrinkles, popped rivets, and bulges

8. Wing Leading Edge --------            Check for breaks, dents, and bulges

9. Angle of Attack Probe -----            Check cover removed and vane for freedom of movement

10. Pitot Tube ------------------            Check cover removed and mast unobstructed

11. Wing Tiedown -------------            Removed

12. Fuel Cap --------------------            Check secure and arrows aligned

13. Stall Strip -------------------            Attached

14. Left Main Landing Gear

a.  Wheel properly chocked; tread/no cord showing; check tire for cuts, abrasions, proper inflation, and retaining nut cotterkeyed

b.  Check brake disk for scoring/warpage

c.  Check brake lining for security and thickness (no less than 1/10”)

d.  Oleo 3” (approximately 4 fingers)

e.  Shock strut scissors for proper installation, security, retaining pins cotterkeyed, microswitch and linkage secure

f.   Landing gear fairing for security

g.  Positive downlock for security and fraying, mechanical locking device boot snaps fastened, and uplock spring tension

h.  Landing light for security

i.   Aileron trim tab cables and turnbuckles safety wired and no evidence of chaffing or excess slack, fuel lines and fittings for leakage

j.   Wheel well for foreign objects

k.  Landing gear door (inboard) for excess play

l.   Landing gear position light (peanut light) for security

15. Forward Fuel Drain -----------------------------------            Check for leakage

16. Underside of Fuselage

a.  Fuel Sump Drain -------------------------------------     Check for leakage

b.  Cabin Fresh Air Intake Duct (P-51 scoop) ------     Check clear

c.  Check all visible drains for leakage and antennas for condition and security

Left Wing Preflight Gouge

1.  Purpose of the bonding braids is to aid in the transfer of static electricity to the static wicks for discharge

2.  Stall strip helps the wing root stall before the wing tip

3.  Downlock cable is a silver wire, tight when the gear is down

4.  Uplock cable is a silver wire with a yellow end, has slack when the gear is down

5.  Left main safety switch on strut, with weight on wheels, activates gear warning when gear handle is selected up on deck, also enables the pilot-initiated NACWS test

6.  Gear up/down switches are located in the forward wheel well area

7.  Port up switch - Position indicator, activates the condenser blower with the gear down

8.  Port down switch - Position indicator, activates the gear position (peanut) light

9. Four large cables in aft section of wheel well - 2 thick cables control aileron, 2 thin cables control aileron trim tab

10. Some fuel leakage is allowable from ram fuel vent only (should only occur on hot days)

11. Purpose of fin on top of ram fuel vent is to create an airstream to carry any fuel drops away from the underside of the fuselage, preventing pilots from smelling fuel fumes

12. Underside, Aft to Front

Even--------        Evaporator

Pilots ------        Pitot Drain

Have -------        Hydraulic Fluid Scupper

Fun ---------      Firewall Fuel Drain

Washing --        Engine Wash Hookup

Props ------        Propeller Oil Drain

 

Preflight - Nose/Propeller

1. Oil Cooler Exhaust Duct --            Clear

2. Open Engine Cowlings and Check

a.  Firewall Fuel Filter ------     Check handle stowed

b.  Engine Oil -----------------     Check quantity and cap secured

c.  Check bilges of both engine compartments for foreign objects, leaks, and general security

d.  Check security of NACWS antenna cable connection

3. Cowling and Engine

Cowl Door Latches --------  Secure

4. Propeller Restraint ---------            Removed

5. Exhaust Stacks --------------            Check for cracks and clear

a.  Check fire detector sun shield in place on port stack

6. Top Cowl Locks ------------            Four, secured

7. Upper NACWS Antenna --            Check condition and security

8. Propeller Retaining Bolts -            Eight, check for security and safety wired

9. Propeller ----------------------            Check for cracks, nicks, or pits, inspect spinner attachment screws for security

10. Accessory/Intake Ducts --            Clear

11. Nose Gear/Wheelwell

a.  Check tire for proper inflation, cuts, tears, abrasions, tread, and retaining nut cotterkeyed

b.  Shock strut for leakage and approximately 3-5” of oleo

c.  Shock strut scissors for proper installation, security, retaining nut cotterkeyed, tow pin straight, microswitch and linkage secure

d.  Shimmy Dampener -------------------------     Check for security

e.  Retainer for Nose Cowling Lockpins ---     Securely fastened

f.     Nosewheel Doors ---------------------------     Check security and condition

g.  Nose Wheelwell ---------     Check door retraction linkage for attachment and security, up and

downlock microswitches and linkages for security

12. Air Conditioning Intake -            Clear, door closed (v-scoop)

13. Inertial Bypass Door ------            Closed

14. Open Starboard Engine

Cowling ---------------------      Check for FOD or leakage

15. Cowling and Engine

Door Latches ---------------      Secure

16. Battery Compartment

a.  Battery Hold Down Straps ----------------     Secured

b.  Battery Tray Retaining Pin ----------------     Secured

c.  battery Access Door ------------------------     Latched

d.  Battery Vent Scuppers ---------------------     Clear

17. Emer Canopy Release ----            Secure

18. Battery Overflow Drain --            Clear

19. Gang Drain -----------------            Check for leakage

 

Nose/Propeller Preflight Gouge

1. Engine wash connector is located up inside oil cooler exhaust duct

2. Ensure Engine Oil Cap is seated and locking lever is locked in aft position

3. Can see NACWS antenna cable connection real good from right side, as well as see where coax cable attaches to the firewall

4. Bleed air valve provides engine anti-stall characteristics at low engine speeds

5. Bleed air regulator valve regulates bleed air into the cockpit

6. Engine wash ring runs over the top of the intake FOD screen

7. Check the condition of the Air Conditioning belt

8. Fire detectors: L-U-C, Lower (Position 1), Upper (Position 2), Combustion (Position 3)

9. Environmental Control Cables - One goes to bleed air regulator, the other goes to the jet pump

10. The fire detector sun shield is located on the top left exhaust stack behind forward firewall

11. Cowl locks slots should be horizontal and center pins should be protruding into slot

12. Port intake provides cooling air for accessory cooling, oil cooler, cockpit air, and starter/generator cooling

13. Horizontal nosewheel microswitch linkage indicates improper positioning

14. Nosewheel Microswitch - With weight on wheels, enables Beta and disables rudder shakers

15. Nose Uplock Switch - Position indicator and Landing Light annunciator

16. Nose Downlock Switch - Position indicator and peanut light

17. Oil cooler drain in nose wheelwell has a blue cap, on the left side

18. Orange circle on top of nose wheelwell is engine oil access

19. Air conditioning ground blower inlet is on right side of nose wheelwell

20. Golfball-sized hole in top of wheelwell is for shimmy dampener when nosegear is retracted

21. Air conditioning pressure switches in engine compartment - Copper is low and Black is high

22. EPA fuel collector tank is located below the air conditioning condenser and cannot be seen

23. Primary fuel pump pumps around 800 psi

24. ITT compensating probe compensates for the sampling error in 8 thermocouples to give a fixed ITT indication

25. The 3 big orange lines below the compressor section are fuel return lines

26. Check the “11-inch Rod”  for security and freedom of movement

 

Preflight - Right Wing

- Same as the left wing with the exception of AOA, Pitot Tube, and aileron trim cables

 

Right Wing Preflight Gouge

1. Right main gear safety switches

a.  Safety Switch disables the gear up control circuit, preventing retraction on deck, and disables the AOA indicter with weight on wheels

b.  Uplock Switch - Position indicator

c.  Downlock Switch - Position indicator and peanut light

 

Preflight - Right Aft Fuselage

1. Examine Fuselage ----------            Check for dents, popped rivets, and security of access panels

2. Oxygen Service Door ------            Secure

3. Oxygen Hi-Pressure Disk -            Intact

4. Canopy Emergency

Pressure Gage ---------------            Needle in green range

5. Static Port --------------------            Clear

6. Aft Canopy Seal ------------            Check condition

7. UHF, ELT, VOR,

and GPS Antennas ---------            Check condition and security

 

Preflight - Empennage and Tailcone

1. Examine Strakes and

Vertical Stabilizers --------            Check for cracks, dents, wrinkles, or popped rivets

2. Control Surfaces ------------            Check for security, freedom of movement, no servo action of elevator trim tabs, antiservo action of rudder trim tab, check trim tab hinge pins secure, rudder and elevator hinge points secure, bonding braids attached, actuator rods secure, nuts cotterkeyed, and condition of static wicks

3. Tailcone, Navigation

and Strobe Lights ----------            Check condition

 

Preflight - Underside of Fuselage

1. Underside of Fuselage -----            Check for dents, bulges, wrinkles, tears, and popped rivets

2. Tail Tiedown ----------------            Check removed

3. Ventral Fins ------------------            Check condition and security

4. Antennas ---------------------            Check condition and security

a.  TACAN Antenna --------     Between the Ventral Fins

b.  NACWS Antenna --------     Just forward of the TACAN Antenna

c.     Transponder Antennas --   Two, for front and aft transponders

 


Preflight - Left Aft Fuselage

1. Left Aft Fuselage -----------            Check for dents, popped rivets, and security of access panels

2. Aft Canopy Seal ------------            Check condition

3. Static Port --------------------            Clear

4. Avionics Compartment ----            Security of electronics equipment, check for loose articles adrift, latch/secure door

 

Avionics Bay Gouge

1. Emergency Canopy Open Bottle

     - Orange bottle on right side of compartment

     - Filled with nitrogen

     - Check for slack in cable and attachment to rod

     - Remove any ‘Remove Before Flight’ tags

2. Junction Box

     - Note air conditioning service/sight glass gage behind box

3. RMI Adapter

     - Black box; Bottom row, left side

4. Slaving Accessory

     - Bottom row, second box

     - Receives input from flux detector and directional gyro

5. DME-40

     - Bottom row, third box

     - Provides TACAN DME information

6. BRG-40

     - Bottom row, fourth box

     - Provides bearing information to TACAN

7. ARC-159

     - Top row, left

     - UHF transceiver

8. VIR-30

     - Top row, right

     - Receives and interprets VOR/Localizer signals

9. NACWS TRC

     - Mounted overhead

     - NACWS transmitter/receiver computer

10. Avionics Cooling Fan

     - Lower forward portion of compartment