ANAC GMP Theoretical Exam (Powerplant Group) case studies
ANAC GMP Theoretical Exam (Powerplant Group) · Put your knowledge to work in context.
The ANAC GMP Theoretical Examination for the Powerplant Group is a knowledge test for candidates seeking the powerplant endorsement on an aircraft maintenance engineer licence issued under Canadian aviation regulation. It suits apprentices completing a GMP (aircraft maintenance) training programme, experienced technicians adding a rating, and anyone preparing for licensing. The ANAC GMP Theoretical Exam (Powerplant Group) case studies are 5 cases and about 4,064 words.
1High Cylinder Head Temperature on Climb-Out After Maintenance
A four-cylinder horizontally opposed engine with 1,200 hours since overhaul has just left a 100-hour inspection. On the first climb after maintenance, the pilot reports cylinder head temperature on the number 3 cylinder reaching 245 °C (about 470 °F) while the other three sit near 190 °C (375 °F).
871 words, about 4 min2Turbine Engine Start Abort Decision Away From Base
A twin-engine turboprop is at a remote strip 900 km from its maintenance base. On the first start of the day, the right engine lights off normally, but exhaust gas temperature rises faster than usual and the start is aborted at 780 °C, above the normal start peak of about 720 °C but below the published start limit of 850 °C.
809 words, about 4 min3Propeller Vibration After a Blade Repair
A two-blade constant-speed propeller on a piston single was removed for a blade repair after a minor ground strike. The propeller was refitted by a licensed engineer, and the aircraft flew 3 hours with no reported issue.
827 words, about 4 min4Fuel Contamination Suspected After Refuelling
A turbine-powered aircraft was refuelled from a bowser at a small airfield. During the pre-flight sump check, the engineer finds a small amount of clear fluid with a slight sheen in the fuel sample from the left tank drain, plus a few dark specks.
760 words, about 4 min5Deferred Defect and Airworthiness Decision on a Charter Aircraft
A charter operator's aircraft is presented for a charter flight with a deferred defect against the cabin pressurisation controller, permitted under the operator's approved deferred defect list with a 10-flight limit. The aircraft has flown 7 flights since the deferral.
797 words, about 4 min