Airworthiness

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• Airworthiness
• Preventive Maintenance
• R1

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OBJECTIVE

• Define preventive maintenance.
• Persons authorized to perform preventive
  maintenance.
• Maintenance record entries.
• Performance rules (general).
• List of Preventive Maintenance work.

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Preventive Maintenance - Defined

• FAR 1
• Simple or Minor preservation operations and the
  replacement of small standard parts not
  involving complex assembly operations.

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Persons Authorized to Perform Preventive
Maintenance FAR 43.3

• Holder of a mechanic certificate issued under
  Part 65
• Holder of a repairman certificate
• Holder of Part 145, 121 and 135 certificate
• Holder of a Pilot Certificate issued under Part
  61
• A person working under the supervision of a
  mechanic or repairman

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Lets Take a Closer Look at what type of Pilot is
authorized to Perform PREVENTIVE MAINTENCE
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Types of Pilot Licenses

• Student Pilot
• Recreational Pilot
• Sport Pilot
• Private Pilot
• Commercial Pilot
• ATP

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A Person holding a Pilot Certificate can perform
Preventive Maintenance

• Although 43.3 does not specify the type of pilot
  certificate that is required to perform
  preventive maintenance, 43. 7 does specify at
  least a private pilot certificate to make the
  logbook entry. The person making the logbook
• entry must be the same person who performed the
  maintenance

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Question

• Can a holder of at a Private Pilot certificate
  supervise and sign off preventive maintenance
  work performed on his/her aircraft if the work is
  done by another person?
• A) Yes
• B) No

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Preventive Maintenance FAR 43.3

• The Sport Pilot Limited to the sport pilot
  plane that they own or operate.

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Preventive Maintenance Items
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FAR 43 Appendix A Preventive Maintenance

• (1) Removal, installation, and repair of landing
  gear tires.
• (2) Replacing elastic shock absorber cords on
  landing gear.
• (3) Servicing landing gear shock struts by adding
  oil, air, or both.
• (4) Servicing landing gear wheel bearings, such
  as cleaning and greasing.
• (5) Replacing defective safety wiring or cotter
  keys
• (6) (31)

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Types of Aircraft Authorized

• Operated under Part 91.
• Not operated under FAR 121, 125 or 135

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Maintenance Record Entries(43.9)

• 1) A description of work performed.
• 2) The date of completion of the work performed.
• 3) The name of the person performing the work if
  other than the person approving return to
  service.
• 4) Upon satisfactory performance of the work, the
  signature, certificate number, and kind of
  certificate held by the person approving the work.

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Performance Rules (general)(43.13)

• 43.13 a) use the methods, techniques, and
  practices prescribed in the current
  manufacturers maintenance manual or Instructions
  for Continued Airworthiness prepared by its
  manufacturer or other methods, techniques, and
  practices acceptable to the Administrator.

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PPPP
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Performance Rules (general)(43.13 a) Contd

• use the tools, equipment, and test equipment so
  the work is done in accordance with accepted
  industry practices. Must use special tools or
  test equipment recommended by the manufacturer
  involved, or its equivalent acceptable to the
  Administrator.

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Performance Rules (general)43.13 (contd)

• 43.13 b) shall do that work and use materials
  that the condition will be at least equal to its
  original or properly altered condition (with
  regard to aerodynamic function, structural
  strength, resistance to vibration and
  deterioration, and other qualities affecting
  airworthiness).

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Tool Calibration

• Be absolutely sure your measuring tools are
  accurate.

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Performance Rules (general)43.13 (contd)

• 43.13 b) shall do that work and use materials
  that the condition will be at least equal to its
  original or properly altered condition (with
  regard to aerodynamic function, structural
  strength, resistance to vibration and
  deterioration, and other qualities affecting
  airworthiness).

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Question

• A pilot may perform Preventive Maintenance on
  any Part 91 aircraft?
• True
• False

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Question

• Which of the following is/are authorized to
  approve for return to service after preventive
  maintenance?
• a. A Sport Pilot
• b. Certificated Mechanic
• c. A Private Pilot
• d. All the above

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Question

• What regulation lists Preventive Maintenance
  actions?
• FAR 43.3
• FAR 43.7
• FAR 43.9
• FAR 43 Appendix A

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Question

• What conditions must be met before a mechanic or
  repairman can supervise preventive maintenance?
• a. Authorized to perform the work
• b. Observes the work is done properly
• c. Is readily available for consultation
• d. All of the above

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(4) Servicing landing gear wheel bearings, such
as cleaning and greasing.
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(6) Lubrication not requiring disassembly other
than removal of nonstructural items such as cover
plates, cowlings, and fairings.
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(7) Making simple fabric patches not requiring
rib stitching or the removal of structural parts
or control surfaces.
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(9) Refinishing decorative coating of fuselage,
balloon baskets, wings tail group surfaces
(excluding balanced control surfaces), fairings,
cowlings, landing gear, cabin, or cockpit
interior when removal or disassembly of any
primary structure or operating system is not
required.
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(11) Repairing upholstery and decorative
furnishings of the cabin, cockpit, or balloon
basket interior when the repairing does not
require disassembly of any primary structure or
operating system or interfere with an operating
system or affect the primary structure of the
aircraft.
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(12) Making small simple repairs to fairings,
nonstructural cover plates, cowlings, and small
patches and reinforcements not changing the
contour so as to interfere with proper air flow.
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(13) Replacing side windows where that work does
not interfere with the structure or any operating
system such as controls, electrical equipment,
etc.
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(14) Replacing safety belts.
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(15) Replacing seats or seat parts with
replacement parts approved for the aircraft, not
involving disassembly of any primary structure or
operating system.
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(16) Trouble shooting and repairing broken
circuits in landing light wiring circuits.
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(20) Replacing or cleaning spark plugs and
setting of spark plug gap clearance.
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(26) Replacement or adjustment of nonstructural
standard fasteners incidental to operations.
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Additional Guidance

• AC 20-106, Aircraft Inspection for the General
  Aviation Aircraft Owner
• AC 23-2A Flammability Tests
• AC 43.12A Preventive Maintenance
• (Find these and more ACs on FAA.gov)
• FAA Publication P-8740-15Maintenance Aspects of
  Owning Your Own Aircraft ( find it on
  FAASafety.gov)

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Conclusion

• Questions and comments
• Faasafety.gov
• G A Awards Program
• WINGS Program
• AMT Award Program
• Feedback wanted http//www.faa.gov/about/office_o
  rg/headquarters_offices/avs/stakeholder_feedback/a
  fs/field/sf_faasteam

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Sometimes thinking you are safe, doesnt always
mean that you are!