1: Harvard T6 Pre-Flight Checks


this film will show you how to do a line
check although the plane captain will have
checked your plane before a flight it is up to you to make a thorough and complete
inspection before each hop we will demonstrate this inspection with
a SNJ but it is the same with any plane you
may fly approaching the aircraft stay completely clear of the propeller place your parachute on the horizontal
stabilizer preparatory to beginning your check by using a definite procedure for your
line inspection you will be less apt to forget anything establish this pattern of checkpoints in
your mind the cockpit the trailing edge of the port wing the port side wingtip the port side leading edge landing gear and port side engine
section the front engine section and prop the starboard engine section the starboard wing leading edge the starboard wingtip the trailing edge starboard fuselage the empennage and tail section the port side fuselage and baggage compartment the first checkpoint is the cockpit both front and rear cockpit should be
examined for any loose articles or rags that might foul controls check the magnetos and battery switch using slight pressure to be sure they are in the full
off position unlock the controls by releasing the
lever at the lower left side of the stick visually check the oil level being sure
to replace the cap check the port side fuel level and again replace the cap firmly inspect both top and bottom of the
trailing edge of the port wing looking for tears or breaks wrinkles or bulges snap rivets looseness or dents in the
skin and in the aileron fabric all of which might indicate structural
failure check the movement of the ailerons and the condition of the fittings make sure that lock nuts are secured and that the pins are made fast by safety
cotter pins or wire when you reach the wing tip move the end of it up-and-down firmly
but gently to detect any excessive movement examine the leading edge of the port
wing with equal care when you approach the engine section keep well clear of the propeller look at the landing gear notice the amount of oleo showing and check the struts be sure bolts are tight and tires
properly inflated check the hydraulic lines for breaks or
leakage examine the cowling and exhaust stack for looseness and loose fasteners taking care to keep clear of the propeller
walk around in front of the plane look at it to see that it is sitting
level examine but do not move the
propeller for cracks necks or permanent damage look for any loose fittings or other
irregularities about the engine make sure there is no oil or fuel leakage still keeping clear of the propeller start your inspection of the starboard
side be sure that chocks are properly placed
under the wheel check the cowling and the leading edge just as you did the port side examine the pitot tube then check the starboard wingtip and
test it for excessive play check the trailing edge of the star
board wing tapered underneath surfaces just as you did the port wing check the fuel level then firmly secure the cap of the starboard fuel tank examine the starboard side of the fuselage at the empennage or tail group examine the rudder and elevators for
freedom of movement and condition of the surface move the rudder so you can see the
rudder horn and cables on both sides inspect the stabilizer and trim tab fittings for freedom and lubrication check top and bottom surfaces of the
elevators then examine the tail wheel assembly for
proper inflation and oleo fluid continue your inspection of the port side
of the fuselage make sure all gear in the baggage
compartment is firmly secured and finally that the door is tightly locked after putting on your parachute you are ready to get in the plane

19 thoughts on “1: Harvard T6 Pre-Flight Checks

  • – Tailplane:
    o Condition of leading edge.
    o Condition of upper and lower surfaces.
    – Ballast weight in position and locked for solo flight.
    – Condition of under surface.
    – External aerial secure.
    – Panels secure.
    – Condition of surface.
    – Baggage compartment:
    o Security of equipment.
    o Starting handle and lashing rings stowed.
    o Door shut and locked.

  • 4.3.3.1.9 Left fuselage checks.
    – Elevator:
    o Condition of trailing edge.
    o Freedom of movement.
    o Bonding wires intact.
    o Condition of trimmer.
    o Condition of upper and lower surfaces.

  • 4.3.3.1.8 Fin checks.
    – Fin:
    o Condition of side surfaces.
    o Condition of leading edge.
    o Condition of tail lights.
    o Aerial secure.
    – Rudder:
    o Condition of side surfaces.
    o Condition of trimmer.
    o Freedom of movement.
    – Tailwheel:
    o Extension of ole leg.
    o Tire for cuts, creep and inflation.

  • 4.3.3.1.7 Right fuselage checks.
    – Condition of surface.
    – Panels secure.
    – External aerial secure.
    – Condition of under surface.
    – Condition of identification lights.
    – Ballast weight in position and locked for solo flight.
    – Tailplane:
    o Condition of upper and lower surfaces.
    o Condition of leading edge.
    – Elevator:
    o Condition of upper and lower surfaces.
    o Condition of trimmer.
    o Bonding wires intact.
    o Freedom of movement.
    o Condition of trailing edge.

  • 4.3.3.1.6 Right wing checks.
    – Lower wing :
    o Condition of landing light.
    o Condition of leading edge.
    o Panels secure.
    o Pitot tube cover removed.
    o Lashing ring removed.
    o Condition of under surface.
    – Navigation lights: Conditions.
    – Aileron : Ref. Left wing checks
    – Flap: Condition and position.
    – Upper wing :
    o Condition of upper surface.
    o Fuel filler cap secure.
    o Condition of stub wing fairing.
    o Anti-gas tapes secure.

  • 4.3.3.1.5 Engine checks.
    – Propeller:
    o Condition of blades and counterweights.
    o Pitch.
    o Cowlings and panels secure.
    o Absence of oil leak.
    o Condition and security of exhaust pipe.
    o Turn 5-13 blades.
    – Center plane: Condition of undersurface.
    – Right undercarriage: Ref. undercarriage checks.

  • 4.3.3.1.4 Undercarriage checks.
    – Extension of oleo leg 4 fingers.
    – Condition of wheel bay.
    – Wheel disc secure.
    – Brake lead secure.
    – Tire for cuts, creep and inflation.
    – Chock removed.
    – Fairing door for security and condition.

  • 4.3.3.1.3 Left wing checks.
    – Upper wing :
    o Condition of stub wing fairing.
    o Fuel filler cap secure.
    o Condition of upper surface.
    – Flap: Condition and position.
    – Aileron :
    o Condition of surface.
    o Condition of trimmer.
    o Bonding wires intact.
    o Freedom of movement.
    – Navigation lights: Conditions.
    – Lower wing :
    o Condition of under surface.
    o Lashing ring removed.
    o Panels secure.
    o Condition of leading edge.
    o Condition of landing light.

  • – Note 3, external checks: Start at the left wing root and work clockwise around the aircraft.
    – Note 4, QNH: as at June 2012, the correct altimeter setting is QNH + 2.5 hpa (will give you true altitude).

  • – Note 2, interference: Once the internal check completed, remember that the aircraft has been configured for engine start, but you are going to get off the cockpit to do the external pre-flight inspection and may go away from the aircraft for many reasons. If someone who is not a trusted operator has climbed into the cockpit since your pre-flight, go again through the internal pre-flight check list to verify for foreign objects and correct pre-settings of equipment.

  • 4.3.3.1.2.6 Notes.
    – Note 1, back seat: Do the internal inspection of the back seat for all applicable items.

  • 4.3.3.1.2.5 Back seat.
    If the aircraft is to be flown solo, carry out the following checks in the rear cockpit:
    – Parachute: REMOVED.
    – No loose equipment.
    – Safety harness: SECURED.
    – Control column: STORED and positively locked in socket.
    – Gyros: CAGED.
    – Dinghy knife: STOWED.
    – Intercom: OFF.
    – Rear sliding hood:
    o Jettison levers flush with panels and locking wires in position.
    o LOCKED SHUT.

  • 4.3.3.1.2.4 Check instruments from top left to bottom right.
    – Compass: free and correct, no bubbles, not leaning, shows a known heading, compass deviation card installed.
    – Vacuum: Zero.
    – Generator: Zero.
    – Altimeter: QNH + 2.5 hpa.
    – VSI: Zero or note indication to benchmark.
    – ASI: Zero.
    – DI: pre-set and CAGED.
    – AH: CAGED.
    – Radio: SET.
    – Transponder: SET.

  • 4.3.3.1.2.3 Check right hand side.
    – Fire extinguisher: SECURED.
    – Axe: SECURED.
    – AFM compartment: Manipulate door and LOCKED.

  • 4.3.3.1.2.2 Check floor portion from front to back.
    – Rudder pedals: Check movement, friction, resistance, abnormal sound, correct fixation.
    – Brakes: Depress, check for hydraulic leak, air bubbles, full movement.
    – Primer: Manipulate then CLOSED and LOCKED.
    – Oil Cooler: Manipulate then CLOSED up.
    – Carb Heat: Manipulate then COLD up.
    – Control column: Manipulate. Check correct direction of associated flying controls.

  • – Engine throttles: Manipulate individually and then all back.
    o Power: CLOSED back.
    o Mixture: FULL RICH back.
    o Propeller: FULL COARSE back.
    – Trims: Manipulate and then 10/3 (elevator 10 o’clock, rudder 3 o’clock).
    – Fuel: Manipulate and then RESERVE left.
    – Flaps: DOWN using hand pump. Check pump is holding hydraulic pressure, if not suspect internal leakage, pump may be inefficient in case of emergency gear down.
    – Landing Gear: DOWN and check indicator and lock pins visible on both wings.

  • 4.3.3.1.2 Cockpit Setting up.
    4.3.3.1.2.1 Check left hand side from front to back, starting at the mags.
    – Mags: OFF left.
    – Energise/starter switches: OFF and covered
    – Battery: OFF down.
    – Generator: OFF down.
    – Row of all electricity switches: OFF down.

  • – Sliding canopy:
    o Canopy rails: check for foreign objects, condition and alignment.
    o Sliding canopy: Manipulate.
    o Latch: Manipulate.
    o Perspex and frame: Check condition (cracks, colouring and deformation, missing screws).
    o Canopy Jettison Levers: Flush & Lock-Wired.
    – Organize cockpit (charts, checklists, headset etc.) logically and with attention to FOD issues.

  • 4.3.3.1 Before you get into the plane.
    4.3.3.1.1 General overview.
    – Foreign objects: have a thorough look at the inside of the cockpit, including floor and side galleys, use the flashlight if you have one. Lean forward to have a good look around the control column pit and around the rudder pedals.
    – Seat belt and shoulder straps: Check fixation on airframe, condition of the straps.
    – Buckle: Manipulate.
    – Harness locking system: Manipulate. Prepare seat belt for easy access before flight.

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