Table 2 Master Maintenance Plan Task List
Task number
Item Name
Task Description
Interval
Data Module Refer-
ence
27-50/253
Flaps electrical bond-
ing straps
Examine
1,200 FH / 12 Months -
27-50/254
Flap motor, actuators
and flexible drive
shafts
Examine
1,200 FH / 12 Months -
27-50/255
Flaps
Functional test and
asymmetry monitor
test
1,200 FH / 12 Months 12-B-27-50-00-00A-
*27-50/386
Flap mechanism
Examine
Inspection kit flap
LH inner P/N
500.60.12.021
Inspection kit flap
RH inner P/N
500.60.12.022
Inspection kit flap
LH center P/N
500.60.12.023
Inspection kit flap
RH center P/N
500.60.12.024
Inspection kit flap LH
and RH outer (one
kit required for each)
P/N 500.60.12.025
Threshold
30,000 FH /
39,000 LDG
Repeat
10,000 FH /
12,000 LDG / 6 Year
*27-50/387
Flap drive arm (not
removed)
Eddy current inspec-
tion
Threshold
25,000 FH /
30,000 LDG
Repeat
2,500 FH /
3,000 LDG
*27-50/388
Flap drive arm (re-
moved)
Eddy current inspec-
tion
Threshold
30,000 FH /
39,000 LDG
Repeat
10,000 FH /
12,000 LDG
12-B-27-51-01-00A-
353A-A
or
12-B-27-51-02-00A-
353A-A
or
12-B-27-51-03-00A-
353A-A
*27-50/389
Flap support arm
Eddy current inspec-
tion
Threshold
30,000 FH /
39,000 LDG
Repeat
10,000 FH /
12,000 LDG
12-B-27-51-01-00A-
353A-A
or
12-B-27-51-02-00A-
353A-A
or
12-B-27-51-03-00A-
353A-A
PC-12/47E AMM Doc No 02300, ISSUE 01 REVISION 27 MSN 545, 1001-1719, 1721-1942
12-B-AM-00-00-00-I
UNCLASSIFIED
Effectivity: All
12-B-05-40-00-00A-000B-A
UNCLASSIFIED
07.02.2022 Page 25