Airframe Mechanic Certification Safety Procedures & Regulatory Compliance 5

Question 1

What action must be taken when a mechanic discovers a condition that may make an aircraft unairworthy but is not specifically listed in the maintenance manual?

Accepted Answer

Refer the condition to an IA or repair station for a determination of airworthiness

Answer

When a mechanic encounters a condition outside the scope of the maintenance manual, the condition must be referred to an individual authorized to make an airworthiness determination, such as an IA or appropriately rated repair station.

Question 2

According to 14 CFR Part 43.9, which of the following is NOT required in a maintenance record entry?

Accepted Answer

Name and address of the aircraft owner

Answer

Part 43.9 requires the description of work, the date, and the approving person's signature and certificate number, but does not require the aircraft owner's name and address.

Question 3

A mechanic is working on an aircraft and discovers a previously unknown Supplemental Type Certificate (STC) modification. What should the mechanic do before performing any maintenance on the modified system?

Accepted Answer

Obtain and follow the STC holder's approved maintenance instructions

Answer

When an STC modification is present, the mechanic must obtain and follow the STC holder's approved maintenance data, as the standard manufacturer's data may not apply to the modified system.

Question 4

What is the purpose of the Material Safety Data Sheet (MSDS), now called Safety Data Sheet (SDS), required to be on hand in aircraft maintenance facilities?

Accepted Answer

To provide hazard communication information including health effects, safe handling, and emergency procedures

Answer

Safety Data Sheets provide critical hazard communication information including chemical properties, health effects, safe handling procedures, and emergency response guidance.

Question 5

Under 14 CFR Part 91.417, how long must an aircraft owner or operator retain records of inspections and major alterations?

Accepted Answer

Indefinitely, as part of the permanent aircraft record

Answer

Records of inspections and major alterations must be retained indefinitely as they follow the aircraft and constitute its permanent maintenance history.

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Safety Procedures & Regulatory Compliance 5