Piston 2 - Week 6A
Which of the following is considered line maintenance? #5
Vertical fin spar repair
Engine gear inpsection
Engine adjustments
Engine crankcase repair
Which of the following is considered line maintenance? #2
Periodic inspection
Engine crankshaft inspection
Engine overhaul
Airframe structural repair
Which of the following is considered line maintenance? #6
Engine gear inpsection
Vertical fin spar repair
Engine crankcase repair
Engine oil servicing
Which of the following is considered line maintenance? #3
Airframe structural repair
Engine overhaul
Engine crankshaft inspection
Component replacement
Which of the following is considered line maintenance? #1
Troubleshooting
Engine overhaul
Airframe structural repair
Engine bulk inspection
Which of the following is considered line maintenance? #4
Engine cylinder repair
Engine camshaft repair
Operational checks
Wing spar repair
If when troubleshooting an problem you find everything you have checked is working fine - what should you do?
Back up 3 steps and try again, you must have done something wrong
Tell your crew cheif you cannot do the job
Keep looking, in places that you have not checked yet
Re-do all the tests, you must have done something wrong
What information is needed to troubleshoot a problem?
Power setting, climb, level, decent
All of the other answers
Was it a sudden or was it a gradual deterioration
Altitude, temperature, condition, aircraft parameters (power setting, climb, level, decent)
What is troublehooting?
A "gut reaction" process to determine what is operating normally and where there is a failure occuring
A systematic process to determine what is operating normally and where there is a pilot involved
A systematic process to determine what is operating normally and where there is a failure occuring
A random process to determine what is operating normally and where there is a failure occuring
Once you have identified the "cold cylinder", what will be inspected next?
Inspect for leaks in the induction system
Inspect for improper adjustment of the valves
Inspect for faulty leads
Inspect for bad spark plugs
All of the other answers
What test is used to identify where rough engine operation is coming from?
A cold cylinder test
A hot cylinder test
An idle magneto drop test
An idle mixture test
What reference material will help in troubleshooting problems?
The troubleshooting charts in the TC
The troubleshooting charts in the MM
The troubleshooting charts in the STC
The troubleshooting charts in the IPC
What normally causes backfiring?
Excessively rich mixture, that reignites in the intake air once it has been added through leaks in the system
Excessively lean mixture, leading to slow burning air/fuel burning into and igniting in the exhaust manifold
Excessively lean mixture, leading to slow burning air/fuel burning back into and igniting in the intake manifold
Excessively rich mixture, that reignites in the exhaust once air has been added through leaks in the system
What can cause rough engine operation?
Excessive magneto drop
All of the other answers
Improper valve clearance
High manifold pressure
Which of the following would be done as part of a pre-flight inspection? #1
Magneto switch “OFF” and open top cowl
Check oil level and adjust as required
Check p-leads and ignition harness for security and position
Start at back of engine check fluid lines for condition, security and leaks
Check bottom cowl for evidence of fuel and oil leaks
Check engine wire harness for condition, loose wires, chaffing, burns and broken insulation
All of the other answers
What will be done during a 100 hr inspection?
A detailed engine inspection
The 50 hr inpection
All of the other answers
All recurring AD's
A magneto timing check
Servicing and lubrication
A compression test
Spark plug cleaning
Internal inspection of the turbocharger compressor and turbine
What will be done during a 50 hr inspection?
Inspect the condition and security of magnetos (external), wiring harness, ignition lead security and condition
An inspection of the cylinders for general condition, evidence of damage, overheating, leaks and security
A visual inspection for condition, security, leaks and damage
An inspection of cylinder cooling fins, baffles and oil cooler for security, condition and cleanliness
Inspect the turbocharger & controllers externally for condition, security, leakage and lubricate waste gate with “mouse milk” penetrating oil
Inspect the condition and security of all plumbing lines, hoses and components, control travels, system leaks and servicing of fuel strainer and control device
Drain and change oil (sample if required) replace filter and/or clean screens, condition and security of all plumbing
All of the other answers
Which of the following would be done as part of a pre-flight inspection? #2
General look over engine for leaks
Look over exhaust risers for blown gaskets, missing hardware and leaks
Check propeller for nicks & scratches, and if possible mount hardware for condition and safety devices
Check intake filter and Carburetor/Throttle body for condition and security
Take fuel sample and look for water contamination
Check engine baffling for cracks, damaged or missing seals as this could lead to overheating
All of the other answers
What typical things will be checked during a ground run?
Oil pressure
All of the other answers
Idle RPM
Live magneto check
Propeller & governor operation
Max static RPM
Carb heat/Alternate air
Ancillary system operation
Post maintenance, what should be done to prepare for ground runs?
All of the other options
Install engine cowls and rig cowl flaps as required
Pre-oiling the engine may be required to ensure that all parts have oil prior to engine start
Fuel system leak check should be carried out to ensure against leaks
Post maintenance what must be done before doing a ground run ?
Secure the aircraft as needed (chocks/tie downs)
All of the other answers
Carry out a walk around
Check the aircraft for damage & condition
Inspect the ramp for debris
Check fluids, remove any plugs/covers/control locks
How much should the engine RPM change when turning on Carb heat?
Up 50-75 RPM
Up 150-200 RPM
Down 50-75 RPM
Down 150-200 RPM
What precautions must be taken when ground running turbocharged engines?
Oil temp must be 2/3 of green arc before full power checks
Alternate air must be closed
All of the other answers
When possible have 2 people in the cockpit, 1 to run and 1 to record readings
Allow for 5 minute cool down at 1000rpm before shutting down engine
Advance the throttle slowly and steadily
Before starting the aircraft what should you do?
All of the other answers
Call out "all clear"
Make sure everyone is "all clear"
Review the relevant procedures in the POH
At what engine speed(s) should Carb heat be checked?
Idle
Idle and 1200 RPM
Full power
Idle and full power
How long should the first ground run after maintenance be?
Long, with a check for fluid leaks 1 hour afterwards
Brief, with a check for fluid leaks immediately afterwards
Brief, with a check for fluid leaks 1 hour afterwards
Long, with a check for fluid leaks immediately afterwards
What will happen if B is lengthened?
The idle mixture will richen
The idle speed will decrease
The idle mixture will lean
The idle speed will increase
What adjustment is shown by B?
Idle speed
Maximum speed
Idle mixture
Fuel pressure
What adjustment is indicated by A? #10
Idle speed
Full speed
Un-metered fuel pressure
Idle mixture
After adjusting the idle mixture what needs to be adjusted next?
Idle speed
Full speed
Upper deck pressure
Full power mixture
What will happen if B is shortened?
The idle speed will increase
The idle mixture will lean
The idle speed will decrease
The idle mixture will richen
What adjustment is indicated by D?
Full speed
Un-metered fuel pressure
Idle speed
Idle mixture
If the RPM increases by 25-50 RPM and then the engine stops during an idle mixture check what does that mean?
The mixture is rich
The mixture is correct
The test is invalid
The mixture is lean
What is the correct RPM change for the idle mixture?
A 25-50 RPM decrease
A 25-50 RPM increase
A 75-100 RPM decrease
A 75-100 RPM increase
How often will the float level be adjusted in a carburetor?
Every 100hrs
Annually
At O/H
Every 500hrs
If the RPM increases by 75-100 RPM and then the engine stops during an idle mixture check what does that mean?
The mixture is correct
The test is invalid
The mixture is lean
The mixture is rich
When will the idle speed be adjusted in a carburetor?
After warm up
Every 100hrs
After cool down
Annually
What will happen if A is adjusted in or clockwise?
The idle mixture will lean
The idle speed will increase
The idle mixture will richen
The idle speed will decrease
If the RPM increases by 0-25 RPM and then the engine stops during an idle mixture check what does that mean?
The mixture is correct
The mixture is lean
The test is invalid
The mixture is rich
What will happen if A is adjusted out or counter-clockwise?
The idle speed will decrease
The idle speed will increase
The idle mixture will richen
The idle mixture will lean
What will happen if this screw is adjusted in or clockwise? #2
Idle mixture will richen
Idle speed will decrease
Idle speed will increase
Idle mixture will lean
What will happen if this screw is adjusted out or counter-clockwise? #1
Idle speed will increase
Idle speed will decrease
Idle mixture will lean
Idle mixture will richen
What will happen if this screw is adjusted in or clockwise? #1
Idle mixture will richen
Idle mixture will lean
Idle speed will decrease
Idle speed will increase
What adjustment is shown by A?
Idle speed
Fuel pressure
Maximum speed
Idle mixture
If the RPM does not rise and the engine stops during an idle mixture check what does that mean?
The mixture is lean
The mixture is rich
The test is invalid
The mixture is correct
What will happen if this screw is adjusted out or counter-clockwise? #2
Idle speed will decrease
Idle mixture will richen
Idle mixture will lean
Idle speed will increase
What adjustment is indicated by C?
Un-metered fuel pressure
Idle mixture
Idle speed
Full speed
How often will the idle speed be adjusted in a carburetor?
Every 100hrs
Annually
As required
Every 500hrs
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