CPL Aircraft General Knowledge case studies
CPL Aircraft General Knowledge · Put your knowledge to work in context.
The CPL Aircraft General Knowledge (AGK) examination is one of the theoretical knowledge examinations a candidate must pass on the path to a Commercial Pilot Licence. It tests whether you understand the machine you fly - its structure, systems and powerplants - well enough to operate it as a commercial pilot, recognise abnormal indications and apply the correct limitations. The CPL Aircraft General Knowledge case studies are 5 cases and about 3,126 words.
1Aileron Mass Balance After Refinishing
During a pre-acceptance flight after hail-damage repair, the pilot of a retractable single-engine aircraft notices a light, high-frequency vibration through the control wheel at 140 KIAS in smooth air; it disappears when slowing to 120 KIAS. The maintenance release states that both ailerons and both elevators were stripped to bare metal, refinished with two coats of primer and three coats of polyurethane, and reinstalled.
548 words, about 3 min2Alternator Failure at Night in IMC
Night IMC, a 28 V single-engine retractable is 45 NM from destination at FL080, 120 KTAS, in cloud. Forecast at destination: 1,500 ft overcast, light icing in cloud above 6,000 ft.
663 words, about 3 min3Hydraulic Failure and Emergency Gear Extension
On a night approach in a light twin, the pilot selects gear down at 130 KIAS. The left main green light illuminates; the right main and nose gear remain unsafe.
637 words, about 3 min4Propeller Overspeed in the Climb
Climbing through 6,000 ft in a twin with constant-speed, full-feathering propellers, the right engine RPM rises to 2,950 against a 2,700 redline, although the propeller lever is at maximum RPM and manifold pressure is 24 in Hg. Oil pressure is 65 psi and oil temperature is rising slowly.
640 words, about 3 min5Blocked Pitot Tube in the Climb
During a climb from 2,000 ft to 9,000 ft in a non-pressurised single, the pilot notices the airspeed indicator rising from 100 KIAS at 2,000 ft to 145 KIAS at 9,000 ft, although power setting, attitude and the absence of vibration suggest about 100 KIAS. On levelling off the ASI slowly falls and settles near 120 KIAS.
638 words, about 3 min