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
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