Piper Cherokee SIX 300 Service Manual page 782

PIPER CHEROKEE SIX / LANCE SERVICE MANUAL
Each Six (6) Years
Overhaul McCauley Fixed Pitch propellers each 2000 hours or 72 calendar months which ever occurs
first. (Refer to the latest revision of McCauley Service Bulletin 137).
Overhaul or replace Hartzell constant speed propellers each five (5) or six (6) years or each 2000 or 2400
hours. (Refer to latest revision of Hartzell Service Letter No. 61 to determine specific requirements for
individual airplanes.)
For airplanes equipped with service replacement Aero Accessories, Inc. vacuum pump(s), replace the
shear coupling each six (6) years time-in-service.
Each Seven (7) Years
Each seven (7) years time-in-service, drain and remove the metal fuel tank(s) from each wing and
inspect for corrosion as specified in Fuel Tank/Wing Spar Corrosion Inspection, (see Special Inspections,
Procedures).
Replace fuel tank flexible hose interconnect couplings and fuel tank vent line flexible hose and hose
couplings as required; but not to exceed seven (7) years or fuel tank removal, whichever comes first.
Each 2000 hours or seven (7) years, whichever occurs first, remove interior cabinets, panels, and
headliner and conduct detailed inspection of aircraft structure (skin, bulkheads, stringers, etc.) for
condition and security. Inspection of structure concealed by headliner may be accomplished by alternate
means (i.e. - through the use of a borescope) without removing the headliner, providing access is
obtained to all concealed areas and borescope provides sufficient detail to adequately accomplish the
inspection.
Each Eight (8) Years
Replace engine compartment flexible hoses (fuel, oil, etc.) as required; but not to exceed 1000 hours
time-in-service, eight (8) years, or engine overhaul, whichever comes first.
Each Ten (10) Years
Each ten (10) years time-in-service, test fuselage and wing fluid hoses to system pressure. Visually
inspect for leaks. Hoses that pass inspection may remain in service, but must be rechecked each five (5)
years additional time-in-service. No fluid hose may exceed twenty (20) years total time-in-service.
Each Twelve (12) Years
Hydrostatically test the portable fire extinguisher each twelve (12) years.
Each Twenty (20) Years
No fluid hose may exceed twenty (20) years total time-in-service.
III - INSPECTION 03/27/08
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