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LIGHT MAINTENANCE MANUAL
TFE731-5/-5AR/-5R (ATA NUMBER 72-02-75)
2. Preservation
Table 302. Equipment and Materials
Equipment or Material Manufacturer
NOTE: Equivalent substitutes may be used for listed items.
Barrier material (MIL-PRF-121) Commercially available
Barrier material (MIL-PRF-131, Type I, Class III) Commercially available
Desiccant (MIL-D-3464, Type I) Commercially available
Humidity indicator card (MX-56789) AGM Container Controls Inc, P.O. Box 40020,
3526 E Fort Lowell, Tucson, A
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LIGHT MAINTENANCE MANUAL TFE731-5/-5AR/-5R (ATA NUMBER 72-02-75) CAUTION: DO NOT EXCEED MANUFACTURER’S RECOMMENDED DUTY CYCLE FOR STARTER. 2. A. (4) Every four weeks, with inlet and tailpipe plugs removed, motor engine with starter sufficiently to achieve N1 rotation, observing manufacturers recommended duty cycle for starter. (5) Repeat Steps (2) and (3). (6) It is recommended that digital electronic engine control (DEEC) (76-10-02) be placed in air-tight bag containing desiccant for storage. B
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LIGHT MAINTENANCE MANUAL TFE731-5/-5AR/-5R (ATA NUMBER 72-02-75) CAUTION: TO PREVENT LOSS OF PRESERVATION OIL FROM FUEL CON- TROL, DO NOT OPEN FUEL SHUTOFF VALVE OR MOVE THROTTLE WHILE MOTORING ENGINE. 2. B. (7) Every four weeks motor engine with starter sufficiently to obtain N1 rotation, observing starter manufacturers recommended duty cycle. Ensure fuel shutoff valve is in cut-off position. (8) It is recommended that digital electronic engine control (76-10-02) be placed in air-tight bag con
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LIGHT MAINTENANCE MANUAL TFE731-5/-5AR/-5R (ATA NUMBER 72-02-75) 2. C. (9) Engines preserved as stated in Steps (4) through (7) shall be removed from preserva- tion storage every two years, serviced with oil and motored sufficiently to achieve N1 rotation. Ensure fuel control power lever is in cutoff position prior to motoring. Pre- serve engine in accordance with Steps (2) through (8) after motoring. (10) Engines received from manufacturer have been preserved prior to shipment. Preserva- tio
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LIGHT MAINTENANCE MANUAL TFE731-5/-5AR/-5R (ATA NUMBER 72-02-75) 2. F. If Aircraft is Operated Over Saltwater Below 4000 Feet for More Than 30 Minutes, Perform Compressor Rinse (1) Prepare aircraft for compressor rinse. (a) Position aircraft into wind in order to carry exhaust discharge away from aircraft. (b) Close all bleed systems (anti-ice valves, cabin pressurization/air condition, etc) and install protective covering over starter/generator prior to performing cleaning procedure. (Refer to
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LIGHT MAINTENANCE MANUAL TFE731-5/-5AR/-5R (ATA NUMBER 72-02-75) CAUTION: ALLOW THE ENGINE TO COOL APPROXIMATELY ONE HOUR OR UNTIL ITT INDICATOR READS 100°C OR LESS. NOTE: Caution should be exercised during cold weather (below 0°C (32°F)) since equipment has no provisions to prevent freezing. 2. F. (4) Perform compressor rinse procedure. CAUTION: REFER TO AIRCRAFT MAINTENANCE MANUAL FOR STARTER DUTY CYCLE. DO NOT EXCEED STARTER DUTY CYCLE AT ANY TIME DURING CLEANING PROCE- DURE. TO ELIMINATE BA
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LIGHT MAINTENANCE MANUAL TFE731-5/-5AR/-5R (ATA NUMBER 72-02-75) 2. F. (5) Restore engine to operational status. (a) Remove protective cover (or tape) from inlet pressure and temperature sensor and starter/generator. (b) Reverse blow compressed air (approximately 50 psig) through disconnected P3 tubes removed from fuel control P3 pressure limiter valve fitting. (c) Remove cap, previously installed, from fuel control P3 pressure limiter valve fitting. Connect P3 tube to fuel control P3 pressure
