| 1 |
Remove, inspect and clean torch bodies. |
| 2 |
Inspect inner torch nozzles and repair splitter walls as required. Reinstall torch body assemblies. |
| 3 |
Borescope inspection of compressor turbine, compressor turbine nozzle, inner combustion chamber, outer combustion chamber lug-to-slot clearance, first stage compressor and power turbine ** |
| 4 |
Drain engine oil. |
| 5 |
Check front and rear chip detectors. |
| 6 |
Remove and sonic clean oil filter. |
| 7 |
Service main bearing oil-supply particulate separator ** |
| 8 |
Clean magnet on oil drain. |
| 9 |
Replace engine oil with approved turbine oil, preferably by same manufacturer and type as removed |
| 10 |
Cold-cycle test main bearing oil flow and top-off engine oil as required ** |
| 11 |
Check for oil leaks. |
| 12 |
Check spark plugs. |
| 13 |
Check spark plug wires. |
| 14 |
Check spark plug regulators. |
| 15 |
Test igniters Left and Right. |
| 16 |
Clean prop governor and lubricate cable, joints and slides. |
| 17 |
Check beta block. |
| 18 |
Check prop bolts. |
| 19 |
Check for corrosion on prop. |
| 20 |
Check prop clamps. |
| 21 |
Check spinner and bolts. |
| 22 |
Remove prop blades from hub and check for corrosion. |
| 23 |
Remove starter generator. Remove starter generator brushes and check. Spin commutator and check bearings. Check and clean spline. Apply copper-infused anti-seize to spline and reinstall. |
| 24 |
General inspection of all nuts and bolts, locking wire, engine mounts, cables, fuel & oil connections, and electrics |
| 25 |
Fuel filter must be 10 micron or better. |
| 26 |
Clean FCU and lubricate joints and slides. |
| 27 |
Bleed FCU. |
| 28 |
Check blow-off valve, if necessary, remove and clean. |
| 29 |
Start turbine and check parameters through first and second stage of start. Engine should light off in 5-7 seconds and reach idle in 20-30 seconds after start initiated. |
| 30 |
Check isolating valve. |
| 31 |
Check fuel pressure min 14 PSi, Max 49 PSI (Preferred 28 PSI). |
| 32 |
Check oil pressure min 30, max 39. |
| 33 |
Check N1 at idle min 60%, max 65%. |
| 34 |
Check voltage during start. Min 20 volts. |
| 35 |
Check charging of generator. |
| 36 |
Check ITT at idle 480 to 520 + -. |
| 37 |
Check after shut down for irregular bearing noise from compressor and power turbine. |
| 38 |
Check for cracks on exhausts. |
| 39 |
Check drains on fuel pump, FCU, hot section and EPA can. |
| 40 |
Perform engine spectrum analysis. |
| 41 |
Balance propeller. |
** |
Details of required procedures defined on this website |
