Aircraft Maintenance and 100-Hour Inspections

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Questions and Answers

What is the required action before returning an aircraft to service after a 100-hour inspection?

Make the proper entries in the aircraft’s maintenance record (correct)

Conduct a flight test

Obtain a special flight permit

Perform a weight and balance check

What is classified as a propeller minor repair?

Repainting the propeller

Adding weight to the propeller

Modifying the propeller control brackets (correct)

Changing the propeller blades

What is the penalty for failure to complete and sign a maintenance release?

Fines up to $5,000

15 to 30 day suspension (correct)

Revocation of license

Mandatory retraining

Which items are included in the checklist used during annual or 100-hour inspections?

Items in 14 CFR part 43 appendix Signup and view all the answers

What is classified as preventive maintenance?

Making simple fabric pitches Signup and view all the answers

Who is responsible for ensuring that maintenance information is current and revised as necessary?

The operator Signup and view all the answers

What must an owner obtain to fly an aircraft that was not approved for return to service after an annual inspection?

A special flight permit Signup and view all the answers

What is defined as an appliance major alteration?

Complete disassembly of hydraulic power valves Signup and view all the answers

What type of operation is required for the disassembly of a non-float type carburetor?

Powerplant major repair Signup and view all the answers

Which section governs the issuance of airworthiness certificates?

14 CFR Part 21 Signup and view all the answers

What is the general aviation airworthiness alerts?

Publications of brief maintenance information Signup and view all the answers

What classification is given to the installation of propeller de-icing?

Propeller major alteration Signup and view all the answers

What must the person complying with an airworthiness directive do?

Make an entry in the maintenance record Signup and view all the answers

Which of the following is not considered a power-plant major alteration?

Disassembly of a float-type carburetor Signup and view all the answers

What is the penalty for improperly releasing an aircraft to service under the PCAR?

30 to 60 days suspension Signup and view all the answers

What is considered preventive maintenance in the context of spark plugs?

Cleaning spark plugs and setting gap clearance Signup and view all the answers

Study Notes

100-Hour Inspections

A 100-hour inspection is required by the FAA for powerplants, propellers, and their components.
The inspection must be performed by a certified mechanic and documented in the aircraft's maintenance records.
The mechanic must ensure that the aircraft meets all applicable regulations and standards before it can be returned to service.

Maintenance and Repair

Maintenance includes all work performed to keep an aircraft, engine, propeller, appliance, or component in a safe and airworthy condition.
Repair is any work that restores an aircraft, engine, propeller, appliance, or component to an airworthy condition after it has been damaged or worn out.
Preventive maintenance includes routine work like oil changes and inspections to prevent major repairs down the line
Major repairs can include complex operations like overhauling engines or propellers.

Airworthiness Directives

Airworthiness directives (ADs) are mandatory instructions issued by the FAA to address safety issues with aircraft, engines, propellers, appliances, or components.
They require specific maintenance actions to be taken to ensure the continued airworthiness of the aircraft.
ADs are based on safety issues that have been identified, including accidents, incidents, and engineering investigations.
ADs are not optional, and pilots and mechanics must comply with all applicable ADs.

Propeller Maintenance

Propellers have their own specific requirements for maintenance, including inspections, repairs, and alterations.
Major repairs may include the disassembly of complex components, such as the propeller hub.
Minor repairs can include simple tasks like replacing a damaged blade.

Maintenance Records

All maintenance, repair, and alteration work must be documented in the aircraft's maintenance records.
This includes the date of the work, the type of work performed, the mechanic's name and certification number, and any parts that were replaced.
Accurate maintenance records are critical for ensuring the safety and airworthiness of the aircraft.
They also provide a history of the aircraft's maintenance, which can be used for future maintenance planning.

Airworthiness Certificate

An airworthiness certificate is a document that certifies that an aircraft meets all applicable regulations and standards and is safe to fly.
An aircraft must have a valid airworthiness certificate in order to be operated.
The issuance of an airworthiness certificate is governed by 14 CFR Part 21.

Maintenance Organizations

Approved Maintenance Organizations (AMO) can perform maintenance, repair, and alterations on aircraft, engines, propellers, appliances, and components.
PCAR is part of the Aviation Safety Regulations in the Philippines
PCAR part 1 governs the table of sanctions for MRO/AMO operations.

Sanctions and Penalties

Significant sanctions and penalties exist under PCAR for violating aviation safety regulations.
Specifically for MRO/AMO operations, the penalties can range from suspension, fines, and in the most serious cases, revocation of operating privileges.

Other Key Points

The operator is responsible for ensuring that maintenance information is up to date.
An aircraft that fails an annual inspection must obtain a special flight permit to fly to another maintenance base.
Modifications to the basic design of an aircraft must be authorized by the manufacturer or the FAA.
The aircraft manufacturer's maintenance manuals and propeller manuals are key sources of information for maintenance, repair, and alterations.

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Description

Dive into the essential aspects of aircraft maintenance, including the critical 100-hour inspections mandated by the FAA. Understand the requirements for certified mechanics and the importance of documenting maintenance work. Get familiar with maintenance, repair, and airworthiness directives necessary for keeping aircraft in safe operating conditions.