Aircraft Maintenance Manuals & Procedures

• LTP's CAAP Air Agency Certificate number is 40-00.
• The Aviation Authority and Approved No. indicated on the Release to Service document of an EU registered aircraft customer is LBA DE 145.0001.
• An approved repair station's policies/procedures as an approved EASA Part 145 maintenance organization can be found in the MOE (Maintenance Organization Exposition).
• The Forms Manual represents the CAAP, US-FAA, and EASA mandated forms at LTP.
• As a US-FAA Air Agency Certificate holder, LTP conducts its operation as a repair station IAW 14 CFR Part 145.

Manuals and Maintenance

• The MPM (Maintenance Procedure Manual) defines the organization and procedures that the CAAP used as the basis for LTP's approval as a certificated repair station.
• The JPM (Joint Procedure Manual) defines areas of responsibility and procedures followed during constructed maintenance performed by LTP.
• The RSQCM (Repair Station Quality Control Manual) defines the organization procedures upon which the US-FAA approval of LTP as a certified repair station is based.
• Precise information for the installation of a component is found in the AMM (Aircraft Maintenance Manual).
• Information on the interchangeability of part numbers that can be installed on a specific aircraft type is found in the IPC (Illustrated Parts Catalogue).
• Information regarding primary and secondary structures can be found in the SRM (Structural Repair Manual).
• In the ATA-100 numbering system, the number of the page block designated to removal/installation of aircraft parts is PB 401.
• The required placard for the galley/lavatory in the AMM can be found in ATA Chapter 11, Placard and Markings.
• Information for Equipment and Furnishing can be found in ATA chapter 25.
• In the ATA numbering system, which consists of 3 element numbers separated by dashes, the first element is the CHAPTER.

Airworthiness Directives (ADs)

• Airworthiness Directives (ADs) are Federal Aviation Regulations that must be complied with unless a specific exemption is granted.
• ADs of an emergency nature may require immediate compliance upon receipt.
• An Airworthiness Directive (AD) will be complied with as specified in the AD, after it becomes effective.
• LTP cannot release an aircraft, engine, or appliance in contravention to the limiting.

Maintenance Definitions

• Repair to non-structural members such as cowlings, wings and control surfaces which may affect the airworthiness of an aircraft will be considered an airframe minor repair.
• Installation/modification of any system affecting the structural airworthiness, flight behavior, or control of the aircraft is considered an Airframe major alteration.
• Repair of upholstery and decorative furnishings on cabin that required disassembly of any primary structure or interference with any operating system is considered preventive maintenance.
• Replacement of a seatbelt is considered preventive maintenance.
• Replacement of a seat or seat parts with replacement parts approved for the aircraft is preventive maintenance.
• A change of cabin configuration that will cause appreciable change in aircraft weight is an airframe major alteration.

Aircraft Structure

• Body stations are usually referenced to the fuselage frame in a modern commercial aircraft.
• Fuselage station No. 230 is located 230 inches aft of the zero or fixed reference line.
• Fuselage sections are usually referenced into the fuselage joint procedure in modern commercial aircraft.

Corrosion

• Intergranular corrosion attacks grain boundaries of aluminum alloy.
• Causes of corrosion include furnish deterioration, insulation, maintenance practices, environment, contamination.
• Pitting corrosion is evidenced by a white gray powdery result in pitted surfaces.

Damage Types

• A scratch is a light, shallow mark caused by movement of a sharp object.
• Scratches can be detected by visual inspection method.
• A crack is a visible and partial separation of materials.
• Cracks are usually caused by fatigue/overload.
• Chaffing is defined as frictional wear damage usually caused by 2 parts rubbing.