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including the generator and
alternator once the smoke has
cleared. Reset the electrical master,
and switch on the generator again,
checking the voltage and current.
Switch the systems back on, one by
one, until the problem is identified.
Checklists
Check moveable parts, metal and
wiring (as applicable) for lubrication,
servicing, security of attachment,
binding, excessive wear, security,
proper operation and adjustment,
correct travel, cracked fittings,
security of hinges, defective
bearings, cleanliness, corrosion,
deformation, sealing, condition of
paint and tension.
168 The Helicopter Pilot’s Handbook
In particular. check the cowling
security, as many hinges are quite
flimsy, and the bolts that secure the
rear door at the top and bottom on
each side.
Daily Check
Remove all engine blanking plates
and fuselage covers.
Ensure that the area is clear, external
power and fire extinguishers are
available if required, frost, ice, slush
and snow is removed (particularly on
the upper surfaces of main rotor
blades, aerials, air intakes/outlets
and undercarriage). Aircraft
documents should be available and
in order.
Inspect the whole of the cabin for
loose articles and check all seat
assemblies and seat belts for
satisfactory condition, locking and
release. The First Aid kit should be
securely stowed and the fire
extinguisher fully charged, in date
and properly stowed in its appointed
place. Both items should be signed
as checked and dated.
Each door should have an exit sign
inside and outside with opening
instructions for each handle. The
Flight Manual should be in a front
door map pocket, together with
maps to be used, and the Ops
Manual. Lifejackets and briefing
sheets for the rear passengers should
be on the rear parcel shelf, while
those for the front passengers and
pilot should be in the front door
pockets or somewhere equally
accessible. There should be a full
complement of headsets/ear
defenders and sick bags.
Sit in the pilot's seat. Check the tail
rotor pedals for full and free
movement in the correct sense.
Ensure that the pedal adjustment
operates satisfactorily.
Take off the frictions on the flying
controls and check for full and free
movement. Re-tighten frictions,
close the throttle.
Inspect all instruments, switches and
controls for signs of damage. Check
altimeter operation and set to airfield
elevation, checking accuracy to
within + or—50'.
Switch on the battery and confirm
that the fuel quantity indicated
agrees with the estimated contents of
the tank.
After external power is fitted, or as
far as possible without wasting the
battery, switch on the radios and
check them with suitable ground
stations. Similarly with navaids.
Switch on landing, nav lights and
pitot heat, check operation of all,
then switch off.
Remove cover from pitot head,
check for cleanliness
Check landing gear
Check windows for cleanliness,
cracking, security
Check sideslip indicator
Check cabin doors and jettison
mechanism
Left Hand Side
Check baggage hold door operation
Check fuel tank and system – filler
plug closed
Landing gear leg
AS 350 169
MGB cowlings – check MGB oil
level and chip plug, if fitted (you
need steps), and close cowl
Transmission support platform
Check all lower fairing panels
Main Rotor head
Star, sleeves (peeling)
Frequency Adapter for crack
debonding and separation
Spherical Thrust bearing for
blistering, separation, cracks
Swashplate assembly, for grease,
overheating and feel
Pitch Change Rods—cup
movement, paint marks aligned
Main Rotor Shaft
MGB suspension strut
Servo units and hydraulic
system for security and leaks
Hydraulic reservoir
Engine Air Intake clear
Engine Cowling
Engine Mount
Engine & Compartment
Freewheel Operation—rotate
free turbine from inside the
exhaust pipe. Clockwise drives
rotors, or disengages
Exhaust pipe for security and
condition
Flexible couplings, 1st, 2nd and
3rd
Bearing block near
tailboom/centre is free from
cracks
Engine and MGB cowlings
closed
Rear baggage Hold, check net
hooked in place
Main Rotor Blades – check for
security and signs of impact
LHS Tailboom
Check no oil leaks under scuppers
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The Helicopter Pilot’s Handbook(110)
