Table 2 Master Maintenance Plan Task List (Continued from previous page)
Task number
Item Name
Task Description
Interval
Data Module Refer-
ence
21-50/462
Vapor cycle compres-
sor motor drive
belt (CCM P/N
959.90.22.140, if in-
stalled)
Check for tension
600 Operating hours 12-B-21-50-01-00A-
903A-A
22-10/60
Servo mount (pitch,
roll and yaw)
Remove for clutch
check
1,200 FH / 12 Months 12-B-22-10-00-00A-
313A-A
22-10/233
Pitch, roll, and yaw
actuators and cap-
stan control cables
Examine
2,400 FH / 24 Months -
22-20/129
Angle of Attack
(AOA) transmitters
Examine
300 FH / 12 Months
-
22-20/130
Stick pusher system
Check
300 FH
12-B-22-20-00-00A-
903A-A
22-20/226
Stick pusher system
Functional test
1,200 FH / 12 Months 12-B-22-20-00-00A-
903A-A
23-10/322
Audio control panel
emergency switch
Operational test
2,400 FH / 24 Months 12-B-23-50-00-00A-
903A-A
23-10/323
Emergency frequen-
cy COMM tuning
switch
Operational test
2,400 FH / 24 Months 12-B-23-12-00-00A-
903A-A
24-30/309
Generator 1 (P/N
978.91.23.437)
Brush Check
300 FH
12-B-24-30-01-00A-
313A-A
24-30/310
Starter/Generator 2
(P/N 978.91.23.437)
Brush Check
300 FH
12-B-24-30-01-00A-
313A-A
*24-30/311
Generator control
units, GCU 1 and
GCU 2
Functional test of the
GCU 1 and GCU 2
over and under volt-
age trip protection
(CMR)
3,000 FH / 12 Months
See Note 2
12-B-71-00-00-00A-
903D-A
24-30/312
External power con-
troller
Over/under voltage
trip protection opera-
tional test
2,400 FH / 24 Months 12-B-24-40-00-00A-
903A-A
24-30/313
DC electrical system Functional test
1,200 FH / 12 Months 12-B-71-00-00-00A-
903D-A
24-30/339
Ni-Cad batteries
Remove and service 400 FH / 12 Months
12-B-24-30-07-00A-
920B-A
12-B-24-30-07-00A-
920C-A
and CMM
PC-12/47E AMM Doc No 02300, ISSUE 01 REVISION 26 MSN 545, 1001-1719,
1721-1999
12-B-AM-00-00-00-I
UNCLASSIFIED
Effectivity: All
12-B-05-40-00-00A-000B-A
UNCLASSIFIED
2021-12-04 Page 16
