ASI Maintenance and Repair Procedures 3

Question 1

Under what authority may an Aviation Safety Inspector (ASI) accept a repair performed using a Designated Engineering Representative (DER) approval?

Accepted Answer

14 CFR Part 43 and FAA Order 8900.1

Answer

DER approvals are accepted under 14 CFR Part 43 authority and procedural guidance in FAA Order 8900.1.

Question 2

What type of NDT method is most appropriate for detecting subsurface cracks in aluminum aircraft structure?

Accepted Answer

Ultrasonic pulse-echo testing

Answer

Ultrasonic pulse-echo testing penetrates material to detect internal/subsurface discontinuities in aluminum structure.

Question 3

An A&P mechanic completes a 100-hour inspection on a piston engine aircraft. Who may return the aircraft to service?

Accepted Answer

Any certificated A&P mechanic

Answer

Any certificated A&P mechanic may return an aircraft to service after a 100-hour inspection; an IA is only required for annual inspections.

Question 4

What information must be included in a maintenance record entry per 14 CFR Part 43.9?

Accepted Answer

Description of work, date, signature, certificate number, and type of certificate

Answer

14 CFR 43.9 requires the description of work performed, the date, the mechanic's signature, certificate number, and certificate type.

Question 5

During an ASI surveillance visit, a mechanic is observed using an unapproved solvent to clean fuel system components. What is the immediate concern?

Accepted Answer

Potential chemical incompatibility causing fuel system degradation or fire hazard

Answer

Unapproved solvents may be chemically incompatible with fuel system seals and materials, creating a fire or leak hazard.

(ASI) Aviation Safety Inspector Certification Practice Test