AM Aircraft Maintenance Safety & Regulatory Compliance 2

Question 1

Under 14 CFR Part 43, who is authorized to approve an aircraft for return to service after a 100-hour inspection?

Accepted Answer

A certificated mechanic holding an Airframe and Powerplant rating

Answer

14 CFR Part 43.7 authorizes a certificated A&P mechanic to approve an aircraft for return to service after a 100-hour inspection.

Question 2

When using a torque wrench, in which direction should you apply force relative to the wrench handle to get an accurate reading?

Accepted Answer

In-line with the handle from the pivot point

Answer

Torque wrenches are calibrated for force applied in-line with the handle at the grip point; off-axis force produces inaccurate readings.

Question 3

Which document must be issued before a major repair or major alteration can be performed on a certificated aircraft?

Accepted Answer

A Supplemental Type Certificate

Answer

A Supplemental Type Certificate (STC) approves the design data for a major alteration; FAA Form 337 records the completed work.

Question 4

What action is required when a mechanic discovers a defect that could endanger the aircraft but is outside the scope of their work order?

Accepted Answer

Notify the aircraft owner or operator of the unsafe condition

Answer

14 CFR 43.13 requires the mechanic to notify the owner or operator of any unsafe condition found during maintenance.

Question 5

Lockwire installed on left-hand threaded fasteners should wrap in which direction so that tightening tension is maintained?

Accepted Answer

Counter-clockwise when viewed from the bolt head

Answer

On left-hand threaded fasteners the lockwire must pull counter-clockwise (when viewed from the head) to resist loosening.

(AM) Aircraft Maintenance Certification Practice Test