GENERAL AEROSPACE
Boeing 737-300
MAINTENANCE MANUAL
EFFECTIVITY
PW245
34-53-41GA
DRAWING # GA-KD28-ATC-MM
Page 402
Use and disclosure shall be in accordance with the proprietary legend located on the cover of this document
Aug 15/10
NOTE
: Make sure to install the part number as shown in the IPC (IPC 34-53-00).
(4)
Tighten the screws on the ATC antenna switch.
(5)
Make sure the resistance from the ATC antenna switch to the E2 rack is less than 0.001 ohm.
(6)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P18 Load Control Center - Left
1)
ATC-1 AC
2)
ATC-1 DC
(b)
P6 Load Control Center - Right
1)
ATC-1 AC
2)
ATC-1 DC
F.
ATC Antenna Switch Test
(1)
Supply electrical power (AMM 24-22-00/201).
(2)
Set the transponder select switch on the ATC Control Panel to the 1 position.
(3)
Push the TEST switch on the left ATC transponder.
(a)
Make sure the self-test passes and no faults are detected.
(4)
Release the TEST switch on the ATC transponder.
(5)
Set the transponder select switch on the ATC Control Panel to the 2 position.
(6)
Push the TEST switch on the ATC transponder 2.
(a)
Make sure the self-test passes and no faults are detected.
G.
Put the Airplane Back to Its Usual Condition
(1)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
