1. Inspect pressure regulator for condition and operation.
2. Inspect pressure gauge for condition and operation.
3. Inspect pressure lines (high and low) for condition.
4. Inspect cabin outlets for condition and operation.
5. Inspect external recharge valve for condition and operation.
NOTE
Overhaul or replace the following items every five
years:
1. Regulator
2. Pressure Gauge
3. Outlets (cabin)
4. External recharge valve.
1. For engines operated in corporate or utility aircraft with a typical utilization of 50 hours per month
or less, it is recommended that the oil be changed every 400 hours or nine (9) months, whichever
comes first.
2. See latest P&W Service Bulletin No. 1001 for proper oil, lubricating (synthetic) approved listing.
1. Replace with new mount (refer to Piper Service Manual, Section Vlll).
1. At end of 500 hours of operation conduct 100 hour inspection in accordance with Janitrol’s
Maintenance and Overhaul Manual, P/N 24E25-1 dated October 1981 and AD 82-07-03.
2. Operational check or replace heater fuel pump.
3. Replace heater fuel filter.
4. Operational check and/or replace heater fuel solenoid valve as required.
1. Inspect gas generator case for cracks, distortion and evidence of overheating.
2. Inspect inlet ice protection and oil cooler door linkage and transmission assemblies. (Refer to
lubrication chart.) Assure proper rigging per Piper Service Manual, Section V.
3. Inspect engine mounts for cracks and loose mounting bolts.
Interim Revision: October 26, 1994
Page 43
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SERIAL NUMBER
REGISTRATION NUMBER
ENGINE SERIAL NO.
Left:
Right:
PROPELLER SERIAL NO.
Left:
Right:
CHEYENNE
PA-31T AND 31T1
PROGRESSIVE INSPECTION
50 HOUR EVENTS
SPECIAL INSPECTION (cont.)
OIL DRAIN PERIOD
NOTE - New style mount (brown in color, for top only) Inspect every event and replace at 1000
hours or condition ( P/ N 761 612 and 761 613 ). Refer to latest revision of Piper Service Letter No.
780.
500 HOUR
HEATER INSPECTION
RIGHT AND LEFT ENGINES
UPPER ENGINE MOUNT
300 HOUR (cont.)
OXYGEN SYSTEM COMPONENTS
Содержание CHEYENNE PA-31T
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