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LAKE LA/4/200 - 250 & 270T
AIRCRAFT INNOVATION & REPAIR SERVICES, INC.
PERIODIC INSPECTION CHECKLIST

 

Model:________ Serial #:________ Reg. #:________ Tach:________ T.T.:________

Registered Owner:________ Start Date:________ Due Date:________

Revision Number: 6 Date: 01/13/ 03


DOCUMENTATION & EQUIPMENT

 

A1. Airworthiness Certificate in Aircraft? Y/N:             Legible? Y/N:
A2. Registration Certificate in Aircraft? Y/N:             Current? Y/N:             Legible? Y/N:
A3. Record Registered owner's name on work sheets
A3. Log Books in aircraft? Y/N:
A4. Check for data plate. Record registration and serial number of aircraft on work sheets.
A5. Flight Manual in Aircraft? Y/N:
A6. Weight & Balance traceable? Y/N:             Date of last update:
A7. AD compliance checklist available? Y/N:             Date of last checklist:
A8. Flight Manual contains appropriate STC's and FM Supplements for modifications? Y/N:
A9. Fuel dip stick in aircraft? Y/N:
A10. Paddle in aircraft? Y/N:
A11. Anchor in aircraft? Y/N:
A12. Ballast (plates) in aircraft? Y/N             No., type and weight:
A13. Personal effects in aircraft? Y/N:             List:


PRE INSPECTION RUNUP

 

B1. Record aircraft Tach hours or hobbs hour reading on work sheets
B2. Engine off Boost pump pressure:             p.s.i indicated
B3. Start up oil pressure @ 1500 RPM             p.s.i indicated
B4. Warm up engine; oil temp:             Deg. F.; Oil Press @ 700 RPM:             p.s.i
B5. Magneto check - Left:              / Right:             /             Smooth Y/N:
B6. At 2000 RPM, Lean mixture for 200 RPM drop. Smooth Y/N:
B7. Propeller cycle check @ 1700; Minimum RPM:
B8. Suction gauge @ 1700 RPM:              In Hg.
B9. At max electrical load, minimum RPM for positive charge:
B10. Check Buss voltage with voltmeter at 1700 RPM             Volts
B11. M/P @ 2200 RPM RPM              @ 25" M/P             Max Static RPM
B12. Minimum Idle speed:             RPM;              ICO RPM increase:             RPM
B13. General Running Conditions, Throttle Response Etc. OK? Y/N:
B14. Taxi check. Brake effectiveness & pedal adjustment
B15. Check hydraulic pump & accumulator for operation


ENGINE SECTION

 

C1. Record model and serial number of engine on work sheets
C2. Drain Engine oil. Oil sample taken? Y/N:
C3. Remove Oil filter and/or screen. Contaminants? Y/N:             Type:
C4. Compression Check: #1      /80, #2      /80, #3      /80, #4      /80, #5      /80, #6      /80
C5. Clean & Gap or Replace Spark plugs. DO NOT CLEAN FINE WIRE PLUGS
C6. Check Ignition Harness for routing, security, chafing and burning
C7. Magneto timing before change: R             L             Deg BTC. Set to data plate specs.
C8. Record model and serial number(s) of mags on work sheets
C9. Check exhaust system for cracks, gaskets, studs and nuts. Check for proper brackets
C10. Check Intake tubes for corrosion, seal leaks at sump, gasket leaks at cylinders
C11. Check alternator mounting bolts and bracket for looseness and safety wire
C12. Check condition of alternator cooling duct & drive belt
C13. Check security of Alternator attaching hardware, RF capacitor. See item J3
C14. Check condition of starter wire. Insp. & lubricate starter Bendix drive gear if applicable
C15. Check condition of fixed and flexible engine cooling baffling
C16. Check all valve covers for leaks and re-torque all valve cover screws |
C17. Check torque of engine mounting bolts and condition of "Lord Mounts".
C18. Check engine mount and side supports for looseness and/or tension
C19. Check security of oil filler tube and dipstick
C20. Check prop governor for leaks and security and condition of cable (end)
C21. Check vacuum pump & coupling for signs of wear. Check security of fittings
C22. Check for relief slit in breather hose and empty sludge can if required
C23. Fill engine with recommended qty of oil. Qty & Type oil used :
C24. Install Oil filter and safety
C25. Inspect air box for cracks and screen. Install new filter element. Safety as required.
C26. Check intake ducting and Alternate air door (Carburetor heat if applicable)
C27. Check travel stops of throttle cable and security of cable end
C28. Check travel stops of mixture cable and security of cable end
C29. Check condition of turbo blanket
C30. Check turbo exhaust clamps for looseness & leakage
C31. Check all exhaust heat baffles for security and condition
C32. Check waste gate for function and lubricate & free up if required
C33. Check security of TIT and CDT probe if applicable
C34. Check security & condition of deck pressure lines
C35. Remove and clean injection nozzles as required or if indicated by Item B6
C36. Comply with AD 2002-26-01; Inspection & security of fuel injection lines & flow divider
C37. Inspect all flex lines for condition and date codes. Replace those with indeterminate service life


PROPELLER

 

D1. Remove propeller Spinner. Check for cracks
D2. Dress blades and impact dents as required. Paint with propeller paint
D3. Inspect for looseness of blades & clamps, oil & grease leaks. Grease if required
D4. Check torque of mounting nuts and for proper safety wire
D5. Adjust low pitch stop if indicated by Item B10
D6. Record S/N of propeller and blades on work sheets
D7. Check for proper drain holes in spinner. Replace spinner using nylon washers


INTERIOR & CABIN

 

E1. Remove seats, all flooring, and baggage box
E2. Inspect seat belts and shoulder harnesses, attachments and ends
E3. Inspect all pushrod controls. Inspect & lubricate all rod ends
E4. Inspect control rod bellcranks for wear and cracks. Lubricate pivot points
E5. Inspect aileron pulleys, cables and turnbuckles. Lubricate rod ends at pushrods
E6. Inspect hull frames for distortion especially aft of foot wells & in step area
E7. Inspect for loose or detached rivets on hull bottom
E8. Clean oil from hull and vacuum debris from hull. Check weep holes are clear
E9. Remove ALL (7) hull plugs, lubricate and replace if required. Reinstall plugs
E10. Check operation of bilge pump and float switch. Check for fuse at Master Solenoid
E11. Inspect brake master cylinders & parking brake valve for leaks, etc.
E12. Inspect gear & flap levers for leaks and stop pins
E13. Check remainder of hydraulics under panel for leaks
E14. Check hydraulic gauge glass for cracks &/or distortion. Replace if required
E15. Check for broken/cracked vacuum and pitot static lines under panel
E16. Check control feel springs for action, security, and (stretching) damage
E17. Check control wheel U-Joint, shaft and wheel for cracks and security. Lube as required
E18. Check door latches and lubricate lock cylinder
E19. Check condition of canopy door tubes, glass and hinges
E20. Check condition of seat rollers and seat tracks
E21. Check operation and friction lock on Throttle, prop and mixture control
E22. Check that all required interior placards are in place
E23. Check heater for proper operation & compliance with AD 96-20-07 & AD 2001-17-13
E24. Aircraft water tested and checked for leaks. See Item M 11
E25. Check condition of floorboards and attaching hardware. Replace interior


FUEL SYSTEM

 

F1. Check all fuel drains, especially main drain, for flow, leaks and proper operation
F2. Check Main tank scupper drain for free flow. See item F16
F3. Check Main tank cap gasket. Replace if required
F4. Check for Main fuel tank Octane and Qty placard
F5. Blow out & check Main vent line and Main cavity vent line
F6. Check fuel bladder for sagging & security
F7. Check for free travel of fuel transmitter float and accuracy of fuel gauge
F8. Fill aux floats with fuel. Check transfer pump operation Clean screen in transfer pumps
F9. Check for Octane & Aux fuel Qty placard
F10. Check and replace, if required, aux fuel cap gaskets.
F11. Replace inner and outer O-rings in flush wing tank caps
F12. Check for Octane & Qty placard for integral wing tanks
F13. Clean and replace, if required, main fuel screen/filter
F14. Inspect lower portion of main fuel tank & Aux fuel pump area for evidence of leaks
F15. Inspect interior of aircraft in area around main fuel drain for leaks
F16. Inspect scupper drain line for possible leaks
F17. Run aux pump with ICO mixture and inspect for leaks on pressure side
F18. Record Fuel pressure indication 15 seconds after shutting off aux pump:             p.s.i
F19. Inspect all flexible fuel lines for wear, corrosion and aging
F20. Operate fuel shutoff and check for operation by using aux pump
F21. After min 24 hours after F8, check sponson tank water drain for internal tank leaks


LANDING GEAR

 

G1. Place Aircraft on jacks
G2. Remove main wheels, Inspect bearings, axles, tires and brakes. Replace as required
G3. Check main gear actuators for visible leaks
G4. Inspect Flexible hydraulic lines for wear, corrosion and aging
G5. Inspect gear switches and wiring for aging and operation
G6. Check gear legs and trunnion for visible rust & corrosion
G7. Check main gear oleo struts for corrosion & leakage. Deflate and fill with 5606 oil
G8. Bleed Hyd Press to zero. Check main gear drag link assys for freedom and wear
G9. Check nose gear strut for wear, corrosion and straightness
G10. Remove nose gear actuator. Inspect shaft at base of threads for cracks. Check for leaks
G11. Check for presence of restrictor in lower fitting of actuator
G12. Check fickle finger bolt for straightness and for K175 support on upper drag link
G13. Check nose gear scissor assy for looseness and check anti shimmy torque (10 ft lbs)
G14. Inspect nose gear assy for excessive looseness and wear
G15. Reinstall nose gear actuator and adjust nose gear down preload
G16. Check adjustment of nose gear doors. Lubricate Ball joints
G17. Grease and/or lubricate ALL landing gear grease points
G18. Perform gear retraction and check clearances, lights and proper function
G19. Remove from jacks. Inflate main struts to 3.5" unloaded; Nose to depress 1" when dropped
G20. Inflate ALL tires to proper pressure


EMPENNAGE

 

H1. Check elevator hinges for looseness and security. Lubricate as required
H2. Check trim tabs for travel and looseness of actuation torque tubes & clevis ends
H3. Check trim indicator for neutral when trim is neutral
H4. Check trim actuation cylinder for leaks and security
H5. Check (electric) rudder trim for function and worn brackets
H6. Check Pitch rods and bellcranks for corrosion and wear. Lubricate as required
H7. Check rudder hinges, bellcranks, rod ends and actuation brackets for wear & security
H8. Check water rudder and cable for operation and wear
H9. Lubricate rudder hinges, rod ends, pivots, & bellcranks as required
H10. Check rudder drain boot and drain tube for condition
H11. Check rudder counterweight for security if applicable
H12. Check condition and attachment hardware of plastic stabilizer and vert fin tips
H13. Check security of VOR antenna, tail light lenses, anticollision lights
H14. Check for corrosion around, and security of horizontal stabilizer attach fittings
H15. Check for proper compliance with AD 98-10-12. Horizontal. Stab. Brackets
H16. Check for corrosion around, and security of vertical fin attach fittings
H17. Check tie down ring and/or tailwheel for damage and security
H18. Check bottom area aft of step for damage to skins and frames


WINGS, FLAPS, AILERONS

 

I1. Remove inspection covers and plugs. Inspect and lubricate all rod ends and bellcranks
I2. Check rear wing attach bolts for looseness and condition of rear false spars
I3. Check main wing attach bolts for security and condition. Check attach area for corrosion
I4. Check both lower and upper spar doubler for evidence of corrosion or damage
I5. Check for proper compliance with AD 2000-10-22 & SB-79 R1, and AD 2002-21-05
I6. Check wing skins & ribs for L/E damage, security and improper repairs etc.
I7. Check aileron rod ends for corrosion, thread length and adjustment
I8. Check aileron hinges for wear. Lubricate hinges.
I9. Check wing tips for loose hardware. Check security of nav light fixture
I10. Check flap brackets for corrosion. Check flap bearings & attach bolts for corrosion and wear
I11. Check & lube bearings, check thread lengths & lock nuts in flap actuating rods
I12. Check condition of aileron actuating rod boots
I13. Check sponsons for attachment and damage, especially on bottom. Leak check if required
I14. Check condition of fuel transfer lines from tank to aux transfer pump
I15. Check security & condition of pitot and static lines at top of mast


ELECTRICAL & LIGHTING

 

J1. Check fluid level of battery if applicable
J2. Check battery cable ends, cable ends at solenoids, starter & ground for corrosion & fatigue
J3. Insure that alternator field, armature and ground wires have fixed standoff on engine case
J4. Check nav lights for operation
J5. Check anti collision lights for operation
J6. Check Landing and Taxi lights for operation
J7. Check pitot heat for operation
J8. Check stall warning horn for operation
J9. Check instrument lights and cockpit lights for dimming and proper operation
J10. Check defroster blower for operation
J11. Check any and all warning and indicator lights for operation
J12. Check external power receptacle for operation
J13. Check ELT for functionality & battery date


HYDRAULIC SYSTEM

 

K1. Check precharge of accumulator -             Psi before charging
K2. Check operation of hand pump
K3. Check operation of electric hydraulic pump. Max current draw at shutoff:             Amps.
K4. Minimum "Cut-On" pressure:             psi. Maximum "Cut-Off" Pressure:             psi
K5. Check hydraulic tank vent open & clear. Vent line connected.
K6. Check for hydraulic bleed down: Not greater than 10 psi / hr
K7. Check for evidence of dirty hyd filter by checking brakes when activating flaps
K8. Check Hydraulic tank fluid level. Fill if required



AVIONICS AND AUTOPILOTS

 

L1. Check power to all avionics equipment
L2. Check mounting of all avionics equipment for security improper installation
L3. Check antennae for security and corrosion under mounting surface
L4. Check condition security of autopilot servos and servo actuators
L5. Check function of PTT switch(es) if installed
L6. Check function & security of all headset & mic jacks
L7. Check compass for fluid level and correction card. Recalibrate if required
L8. Record date of last Altimeter/Static check:
L9. Record date of last transponder certification check:


GENERAL & SUPPLEMENTARY

 

M1. Check log book entries for AD compliance
M2. Check log books for correspondence of Total hours with hobbs or Tach hours
M3. Check log book entries for FAR 91.411, 413 Altimeter, pitot static, & transponder check
M4. Check log book entries for ELT battery date
M5. Powerplant work items & inspection signed off in engine look book
M6. Prop work items & inspection signed off in propeller log book
M7. Aircraft work items entered in Aircraft log books & Inspection signed off
M8. Aircraft vacuumed and exterior washed.
M9. Windshields cleaned
M10. Aircraft run up and checked for leaks, fueled & preflighted for test flight
M11. Aircraft test flown and released for service. See item E22
M12. Aircraft secured and/or tied down


REVISIONS

 

090102 Revisions 1 thru 4 are undocumented

Date Revision # Revision
100102  5 Added item B10: Check Buss voltage ..... @ 1700 RPM, Renumbered all subsequent items
   5 Revised Item C11
   5 Added Item J3 (was included in former C11), renumbered all subsequent items
   5 Added item C37: Inspect all flex lines.....
011303  6 Changed number of AD to 2002-26-01 in item C36 to reflect latest version
   6 Added item H3. Renumbered subsequent items
   6 Added AD 2002-21-05 to item I-5
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     





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