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C. Engine inspection
Engine inspections 3
| Question | Answer |
|---|---|
| What publication is used to check an engine for normal operation? | Manufacturer's maintenance manual. |
| A weak cylinder is found during a compression check. What must be inspected? | The inside of the cylinder. |
| What publications can be used as a guide for 100-hour inspections on aircraft engines? (2) | Manufactures maintenance manuals and FAR part 43, appendix D. |
| How do you identify the engine serial number? | It's on the engine data plate. |
| Prior to returning a reciprocating engine to service after a 100-hour inspection, what operational checks must be performed? (7) | Check the power output (static and idle r.p.m.), check magnetos, fuel and oil pressure check, cylinder and oil temperature check. |
| What purpose does an oil analysis serve? | Metal particles in the oil show normal and abnormal wear of the engine. This helps in evaluating the engine's internal condition. |
| What inspection should be performed on an engine that has been in storage? | Perform an inspection to determine if there is any corrosion damage. |
| Why are hot section inspections performed on turbine engines? | To determine the integrity and wear of the hot section components. |
| What inspections must be performed following a turbine engine overspeed? | Refer to the engine manufacturer's maintenance manual for the required procedures. |
| What inspections must be performed on a turbine engine if the exhaust gas temperature exceeds limitations? | A hot section inspection. |
| Where are life-limited parts of an engine listed? (3) | Engine maintenance manuals, type certificate data sheets, and the airworthiness limitations section of the instructions for continued airworthiness. |
| What criteria determines replacement of life limited turbine engine components?(3) | Cycles, hours and/or calender time. |
| If turbine blades are removed from a turbine disc, why should they be re-installed in the same location? | To maintain the balance of the turbine wheel. |
| Where can engine operating limits be found? (4) | Engine manual, engine specifications, type certificates data sheet, and aircraft manufacturer's maintenence manual. |
| What FAA approvals are required when installing an engine that is not on the aircraft type certificate? | An STC (supplemental type certificate)or an FAA field approval. |
| Under what conditions is compliance with an engine service bulletin mandatory? | When an airworthiness directive references the service bulletin or compliance is part of the approval operating specifications for a commercial or air carrier operator. When engine or component overhaul procedures require compliance at time of overhaul. |
| What is fan blade shingling? | It is the overlapping of the midspan shrouds of the fan blade. |
| When a turbofan or turbojet engine is shut down, what should a mechanic listen for during coastdown? | Any rubbing sound or other unusual noises from the engine. |
Created by:
Justin84
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