GCAA CAR-66 Category A Exam case studies
GCAA CAR-66 Category A Exam · Put your knowledge to work in context.
The GCAA CAR-66 Category A licence is the entry-level aircraft maintenance certification issued under the United Arab Emirates General Civil Aviation Authority's CAR-66 framework. It authorises the holder to carry out and certify specified maintenance tasks on aircraft, working under the scope defined for the category, and it is the usual starting point for people building a career in UAE aircraft maintenance before progressing toward Category B certifications. The GCAA CAR-66 Category A Exam case studies are 5 cases and about 2,966 words.
1Torque Wrench Extension and a Fuel Line Union
During a scheduled check you must torque a fuel line B-nut to 45 N·m. The only calibrated torque wrench available reads 5–60 N·m and is 400 mm long from the square drive to the centre of the hand grip.
592 words, about 3 min2Intermittent Radio and a Bonding Resistance Reading
A Category A mechanic reports that the VHF com radio on a light twin intermittently drops reception when the aircraft is on the ground and the avionics bay access panel is open. With the panel closed, the fault is not reproducible.
578 words, about 3 min3Centre of Gravity After an Equipment Change
An operator wants to replace a 12 kg avionics unit in the aft equipment bay with a 9 kg unit, and add a 4 kg antenna on the rear fuselage. The aircraft's empty mass is 1,250 kg with an empty-arm moment of 3,125 kg·m (i.e.
606 words, about 3 min4Hydraulic Leak, Contamination and Dispatch
A regional turboprop has a slow hydraulic leak from a landing-gear actuator. The reservoir level has dropped from FULL to the LOW band over about 40 flight hours.
606 words, about 3 min5Corrosion in a Lap Joint and a Repair Decision
During a heavy check on a transport-category aircraft, an inspector finds intergranular-looking corrosion and blistering in a fuselage lap joint around a row of rivets, in the bilge area below the cabin floor. The affected area is about 150 mm long.
584 words, about 3 min