Appendix A to Part 43 - Major Alterations, Major Repairs, and Preventive Maintenance

Appedex AにはMajor Alterations (大改善)・ Major Repair(大修理)の事も書かれていますが、Preventive Maintenaceが大事なので、その部分（C)を。
また、ここでの日本語での説明は簡単に書いただけなので、本当のPreventive Maintenaceを行う際は、英語の部分を読んで、理解して行ってください。私の解釈が間違えている可能性があります。

c) Preventive maintenance. Preventive maintenance is limited to the following work, provided it does not involve complex assembly operations:
Preventive Maintenceとして認められるのは、下記に書かれている事柄で、複雑な作業が不要な物に限定しています。

Fairing and Inspection Plate (Cover Plates)

Cutter Pin

Cowling

(1) Removal, installation, and repair of landing gear tires.　タイヤを外して修理する
(2) Replacing elastic shock absorber cords on landing gear.　
(3) Servicing landing gear shock struts by adding oil, air, or both.　脚のオイルや空気を足しても良い。
(4) Servicing landing gear wheel bearings, such as cleaning and greasing.　タイヤのベアリングに油を。
(5) Replacing defective safety wiring or cotter keys.　ネジを固定しているワイヤーやピンの交換
(6) Lubrication not requiring disassembly other than removal of nonstructural items such as cover plates, cowlings, and fairings.　分解しなくても可能なら部品に油をさす。カウリングや点検用のプレートは外しても良い。
(7) Making simple fabric patches not requiring rib stitching or the removal of structural parts or control surfaces. In the case of balloons, the making of small fabric repairs to envelopes (as defined in, and in accordance with, the balloon manufacturers' instructions) not requiring load tape repair or replacement.
(8) Replenishing hydraulic fluid in the hydraulic reservoir.　油圧系のタンクに油を追加する。
(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.飛行に影響を与える場所や分解が必要な一部場合を除き、外装を変える。
(10) Applying preservative or protective material to components where no disassembly of any primary structure or operating system is involved and where such coating is not prohibited or is not contrary to good practices.　分解が不要で安全に影響が無い範囲での、保存剤など(錆止めとか）の撒布。
(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.　飛行に影響が無い範囲での、内部の改装。
(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.空気の流れに影響が無い範囲で、プレートやカウリングなどの簡単な修理。　例：点検プレート、タイヤのカバー、翼単のカバーなど、空気の流れを変えない範囲。
(13) Replacing side windows where that work does not interfere with the structure or any operating system such as controls, electrical equipment, etc.　構造、操縦、電気系統に影響が無ければ、横窓の交換。
(14) Replacing safety belts.　シートベルトの交換
(15) Replacing seats or seat parts with replacement parts approved for the aircraft, not involving disassembly of any primary structure or operating system.　分解が必要でない、椅子やその部品の交換。
(16) Trouble shooting and repairing broken circuits in landing light wiring circuits.　着陸灯の問題探求や修理
(17) Replacing bulbs, reflectors, and lenses of position and landing lights.　着陸灯やPosition Lightの電球などの交換
(18) Replacing wheels and skis where no weight and balance computation is involved.　重量が変わらない範囲でのタイヤやスキー板の交換
(19) Replacing any cowling not requiring removal of the propeller or disconnection of flight controls.分解や制御関係の取り外しが不要なら、カウリングの交換
(20) Replacing or cleaning spark plugs and setting of spark plug gap clearance.　スパークプラグの掃除や隙間の調節
(21) Replacing any hose connection except hydraulic connections.　油圧系統以外のホースの交換
(22) Replacing prefabricated fuel lines.
(23) Cleaning or replacing fuel and oil strainers or filter elements.　フィルター類の交換
(24) Replacing and servicing batteries.　バッテリーの交換と手入れ
(25) Cleaning of balloon burner pilot and main nozzles in accordance with the balloon manufacturer's instructions.
(26) Replacement or adjustment of nonstructural standard fasteners incidental to operations.　構造に関係の無い範囲での、ネジ等の交換。
(27) The interchange of balloon baskets and burners on envelopes when the basket or burner is designated as interchangeable in the balloon type certificate data and the baskets and burners are specifically designed for quick removal and installation.
(28) The installations of anti-misfueling devices to reduce the diameter of fuel tank filler openings provided the specific device has been made a part of the aircraft type certificiate data by the aircraft manufacturer, the aircraft manufacturer has provided FAA-approved instructions for installation of the specific device, and installation does not involve the disassembly of the existing tank filler opening.
(29) Removing, checking, and replacing magnetic chip detectors.磁石で金属片を集めるDetectorの取り外しや点検
(30) The inspection and maintenance tasks prescribed and specifically identified as preventive maintenance in a primary category aircraft type certificate or supplemental type certificate holder's approved special inspection and preventive maintenance program when accomplished on a primary category aircraft provided:　特例について、飛ばします。
(31) Removing and replacing self-contained, front instrument panel-mounted navigation and communication devices that employ tray-mounted connectors that connect the unit when the unit is installed into the instrument panel, (excluding automatic flight control systems, transponders, and microwave frequency distance measuring equipment (DME)). The approved unit must be designed to be readily and repeatedly removed and replaced, and pertinent instructions must be provided. Prior to the unit's intended use, and operational check must be performed in accordance with the applicable sections of part 91 of this chapter.　間単に取り外しが出来る無線機などの交換に付いて書かれています。　全ての物が交換できるわけではありません。
(32) Updating self-contained, front instrument panel-mounted Air Traffic Control (ATC) navigational software data bases (excluding those of automatic flight control systems, transponders, and microwave frequency distance measuring equipment (DME)) provided no disassembly of the unit is required and pertinent instructions are provided. Prior to the unit's intended use, an operational check must be performed in accordance with applicable sections of part 91 of this chapter.　ソフトウエアーのデータベースの交換について書かれています。これも制限あり。

Structural　構造　：　
構造上、航空機の「力」が掛かる部分を言います。　 この単語は整備の部分でよく使われる単語です。建築物など設計が大事な事に使われます。　この部分には安全上、大事な力が掛かる部分です。万が一、この部品に問題が発生すると、崩壊や分解など構造上に大きな問題を生じます。　カーペットや室内灯など、壊れても大きな問題を起さない部分をNon-Structuralと言います

FAR 43 Preventive Maintenanceについて　 抽出＆解説　：　43.3 〜　43.9 ALL