Piper Cherokee LANCE, Service Manual

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PIPER CHEROKEE SIX / LANCE SERVICE MANUAL
07/15/06 III - INSPECTION
4F5
e Factored Service Time
NOTE: This formula applies only to airplanes in Usage Class “B” - Severe. It
may be used to calculate the initial and repetitive inspection times in
factored hours, provided a portion of the airplane’s operating time-in-
service has been in Usage Class “A” - Normal.
Determine Factored Service Time as follows:
Hours in
Hours in
Examples
Severe Service
+
Normal Service
=
Factored Service Hours
17
Ex.(1)
800
+
4000
=
1035
17
Ex.(2)
1000
+
14000
=
1823
17
Results
Ex. (1) Initial inspection not required at this time. Will require initial inspection when
Total Factored Service Hours reach 1800.
Ex (2) Initial inspection required within the next 50 hours time-in-service.
2 Inspection Requirements
a Next 50 Hours:
For airplanes in “Usage Class D” (i.e. - UNKNOWN usage), conduct Wing
Spar Inspection and establish usage class for next inspection based on
current aircraft operations.
NOTE: Aircraft which have previously complied with AD 87-08-08 in CLASS
‘C’ and ‘D’ are in compliance with the initial inspection requirements
and usage class may be established based on current aircraft operations.
b Each 800 Hours:
For airplanes in “Usage Class B” (i.e. - SEVERE usage), beginning at
1,800 hours total time-in-service, and each 800 hours thereafter, conduct
Wing Spar Inspection.
For airplanes in “Usage Class C” (i.e. - EXTREME usage), conduct Wing
Spar Inspection, each 800 hours time-in-service.
c Each 3000 Hours:
For airplanes in “Usage Class A” (i.e. - NORMAL usage), beginning at
30,600 hours total time-in-service, and each 3000 hours thereafter, conduct
Wing Spar Inspection.