FAA Aviation Mechanic - General (AMG) case studies
FAA Aviation Mechanic - General (AMG) · Put your knowledge to work in context.
The Aviation Mechanic - General (AMG) knowledge test is the general-subject written examination at the front of the U.S. aviation maintenance certification path. It is intended for candidates working toward an FAA mechanic certificate - students in aviation maintenance training programs, military-trained technicians moving into civilian credentials, and working mechanics who need the certificate to exercise maintenance privileges. Where the airframe and powerplant tests drill into specific systems and structures, the general test samples the shared foundation of the trade: basic electricity, aircraft drawings, weight and balance, fluid lines and fittings, materials and processes, ground handling and servicing, cleaning and corrosion control, shop mathematics, maintenance forms and records, maintenance publications, and the privileges and limitations of a certificated mechanic. The FAA Aviation Mechanic - General (AMG) case studies are 5 cases and about 2,269 words.
1Landing Light Voltage Drop and Nuisance Breaker Trip
A flight school reports that the landing light on a 14-volt trainer is dim and that the 15-ampere landing-light circuit breaker trips after about 15 minutes of continuous operation. With the lamp illuminated, the mechanic measures 12.4 volts at the bus and 10.9 volts at the lamp.
478 words, about 2 min2Avionics Upgrade and Loading Check
An owner of a four-place, single-engine airplane wants to replace an old 12-pound radio at station 20.0 with a 45-pound avionics package at station 60.0. The current empty weight is 1,650 pounds and the empty-weight CG is 38.5 inches aft of the datum.
520 words, about 3 min3Hydraulic Hose Replacement on a 3,000-psi System
A mechanic is replacing an 18-inch, 1/4-inch-ID hydraulic hose on a 3,000-psi system. The only approved-looking replacement in stock is a 24-inch hose marked SAE 100R5 with a working pressure of 3,000 psi and 45-degree flare fittings.
450 words, about 2 min4100-Hour, Annual, and Major Alteration Sign-Offs
A flight school’s Cessna 172 is due for both a 100-hour inspection and an annual inspection. The school’s A&P mechanic, who holds airframe and powerplant ratings but no inspection authorization, replaces a cracked exhaust muffler, performs the 100-hour inspection, and signs the airframe log.
412 words, about 2 min5Wing Skin Corrosion Beyond Blend-Out Limits
During an annual inspection, a mechanic finds pitting corrosion around steel fasteners on the lower wing skin of a 1970s trainer. The skin is 2024-T3 aluminum, 0.032 inch thick.
409 words, about 2 min