H O F T E C
Aims of seminar
- to save you money by saving the AME's time.
- to save you money by you doing preventive maintenance.
- to help you maintain the value of your aircraft.
- to help you assure the safety of your aircraft.to guide you through the hands-on techniques.
- Light Plane Engine Guide. Sky Ranch Engine Manual
- CARs 625 Appendix 'A' and 'C'
- AD's, SB's, SL's, Operations, Maintenance and Parts Manual
- Light Plane Maintenance, Aviation Consumer
- Mechanics' Standard Pocket Guide
- Obligations of the owner
- Obligations of the AMEThe Inspection while still at home
The Log Book
Doing the above will save you about $80.
- VERIFY MATH for entries into the Journey Log
- add up the times in the Journey Log
- transfer entries into the Technical Logs - Airframe, Engine, Prop
- you are allowed to copy all information from the journey log into the technical logs, so do it.
- attach all tags for equipment or services purchased to the appropriate log books.
- Ensure that the Equipment list is up-to-date.
AD's, SB's, etc.
Doing this will save you another $60+.
- have these neatly arranged and on hand for the AME.
- list which ones were issued and which do and don't apply. All must be listed in the AD section of the log books.
Doing this will save you any amount if an AD comes out applying to certain makes, models and serial numbers.
- make a list of all equipment, including color of tags, model numbers, serial numbers, when purchased, when installed. You should have available detailed information on your engine, all accessories, and all equipment installed on the aircraft.
- 1/4" drive socket set from Sears or Canadian Tire
- the best screwdriver available - Snap-On ratchet drive
- side cutters
- set of keys from 1/4" to 9/16"
- spark plug socket with drive and handle
- automotive compression gauge with adapter
- smooth file
- Scotch Brite
- pump type oil can with 18" neoprene hose extension
- lacing cord, .041” safety wire
- spare parts – landing light bulbs, brake pucks, filters
At The Airplane
KEEP A DETAILED RECORD
OF EVERYTHING YOU DID
AND HOW YOU DID IT.
SHOW THIS LIST TO THE AME.
Doing the above will save you about $150.
- change oil every 4 months, whether you fly much or not.
- take oil sample and have analysis done (fill out information properly on the sheet). Oil samples qualify for keeping an engine on condition. Need 10 cycles for good trend analysis.
- drain oil, pull sump suction screen (Lycoming), change filter and cut filter can to check for particles; drain carb bowl; pull high pressure screen and examine for particles. Wash screen in Varsol and keep to show the AME.
- trace the origin of any oil leaks.
- fuel stains anywhere need attention.
- wash the engine compartment down with Varsol spray.
- remove plugs using torque wrench (note reading) and put into plug tray. Clean, gap, check with go-no-go gauge, apply anti-seize compound (C-5), reinstall into next firing position but with top & bottom interchanged, torque with torque gauge. Clean 'Cigarettes' before reinstalling.
- touch every control and inspect for looseness, kinks and chafing.
- check the baffling and repair/seal any area which produces air leaks. Oil temperature should be about 180°F in cruise, and CHT should be under 425°F.
- check butterfly valve for looseness.
- Change air filter.
- stick finger up exhaust pipe and take a sample - should not be black or white but grey.
- if there are grey stains around the exhaust flange the exhaust has to come off and the cylinder resurfaced.
- inspect exhaust for cracks very carefully and methodically.
- make certain there are no cracks in the engine mount.
- if the spinner no longer lines up with the cowling chances are the shock mounts need replacing.
- repair defective fasteners on cowlings or anywhere.
- remove and replace any rusty screws.
- inspect the area of the mount under any clamps. If the paint is worn off, remove corrosion, prime and paint
- note typical readings in flight
This section completed will see you save at least $200.
- wash the whole airplane.
- vacuum the whole inside of the airplane, including inside the wings by removing panels first.
- touch up any rusted or exposed steel parts with zinc chromate primer and repaint.
- bare aluminum should be anodized before priming and painting.
- stop drill any cracks in sheet metal or plexiglass.
- always do your walk around with a cloth in your hand.
- make sure the oleo is clean before you move the aircraft.
- clean the underside of the airplane and make sure all drain holes are open.
- own a jack for your airplane. Jack up the airplane and regrease the wheel bearings once a year.
- spray DINOL into the structure anytime you have a panel open
- turn all pulleys 90 degrees and oil them both sides.
- swing the compass and make sure the card is up-to-date as of the date of the annual inspection.
- make sure the ELT has been done.
- airplanes with an altitude encoder must have TSO'd altimeters and a correspondence/pitot-static test done every 2 years.
- remove the battery from the box. Check and clean it. Clean the box. Inhibit the terminals.
- make sure the brake reservoirs are full. Drain some fluid out of the bottom bleeder to remove water. Replenish master cylinder. Check puck thickness.
- make sure you install your winter kit early enough to keep the oil temperature at 180°F.
My friends, if you have done all of the above, you have saved yourself at least $500 by doing this yourself. To boot, you will have maintained or increased the value of your aircraft. Pride of ownership is the ultimate payback.
REMEMBER - the AME inspects for conformity to the original type certificate. If he finds the aircraft as per the original, and everything works, then he is entitled to sign it off. If you have done your job as an owner, the AME should not have to do any work other than inspecting and torquing and safetying items you have undone.