GCAA CAR-66 B1 Exam case studies
GCAA CAR-66 B1 Exam · Put your knowledge to work in context.
The GCAA CAR-66 B1 Aircraft Maintenance Licence Examination is the knowledge-testing step for candidates seeking a B1 (mechanical) aircraft maintenance licence under the UAE General Civil Aviation Authority's CAR-66 regime. It is aimed at technicians and engineers who perform and certify maintenance on aeroplanes or helicopters and who need to demonstrate the theoretical knowledge required before licence issue. The examination spans the standard CAR-66 B1 module set: aviation legislation, human factors, air law and the regulatory framework, aircraft general knowledge and maintenance practices, electrical and electronic fundamentals, materials and hardware, maintenance practices, aerodynamics, structures and systems, gas turbine engines, and propellers. Preparation should combine structured self-study of the applicable modules with hands-on familiarity with the aircraft types and tasks you actually work on. The GCAA CAR-66 B1 Exam case studies are 5 cases and about 2,347 words.
1Release to Service After an Unapproved Repair Scheme
You are the certifying B1 engineer on a CAR-66 approved maintenance organisation. A Boeing 737-800 arrives for a scheduled C-check.
538 words, about 3 min2Fatigue, Shift Handover and a Missed Torque Value
You are a B1 engineer on the night shift (22:00–06:00) at a line station. You have already worked 5 consecutive nights, each 10 hours, and this is your 6th.
507 words, about 3 min3MEL Dispatch Decision with an Unserviceable Item
You are the B1 certifying engineer at a Gulf station. An A320 has an unserviceable left-hand landing light and a failed cabin emergency lighting battery pack (one of two).
442 words, about 2 min4Corrosion Found During a Corrosion Prevention Programme Check
During a scheduled corrosion prevention and control programme (CPCP) inspection on a regional turboprop, you find intergranular corrosion on the wing spar lower cap in the fuel tank area. The corrosion exceeds the CPCP baseline limit (level 2).
417 words, about 2 min5Engine Trend Monitoring Anomaly Before Dispatch
You are the B1 engineer responsible for a CFM56-powered narrowbody. The engine trend monitoring data shows exhaust gas temperature (EGT) margin has dropped from 45 °C to 18 °C over the last 200 flight hours, with a slight rise in fuel flow at constant thrust.
443 words, about 2 min