and center of the water switch. 3) Make sure the BEACON ACTIVE WHEN FLASHING light does not flash.

 (d)  
Release the operation switch on the test set.

 (e)  
Remove the test set.

 S 722-101
 (3)  If you have a PL3 test set, do this test of the ULB:
 (a)  
Put the end of the PL3 test set against the ULB water switch. 1) Make sure you hear a tone. 2) Make sure the LED light flashes.

 (b)  
Remove the PL3 test set from the ULB.

 S 722-007
 (4)  If you have an ATS-260 test set, do this test of the ULB:
 (a)  
Put the test set clip on the ULB.

 (b)  
Push and hold the PUSH TO TEST button.

 (c)  
Put the test set probe on the ULB water switch.
 1) Make sure a green LED shows.
 2) Make sure you can hear sounds from the test set.

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 3) Make sure the amber LED flashes.
 (d)  
Release the PUSH TO TEST button.

 (e)  
Remove the test set.

 TASK 31-31-09-402-015
 6.  Underwater Locator Beacon Installation (Fig. 201)______________________________________
 A. Consumable Materials
 (1)  B00541 Detergent, General Purpose
 B. Access
 (1)  Location Zone
 273 Area Above Ceiling, Left

 C. Installation Procedure
 S 422-121
 (1)  Install the ULB on the flight data recorder:
 (a)  
Make sure that the water switch end of the ULB has no grease or dirt. 1) Clean the water switch on the ULB with a weak detergent.

 (b)  
Put one end of the ULB into the free beacon mounting bracket.

 (c)  
Put the other end of the ULB into the beacon mounting bracket on the flight data recorder.

 (d)  
Attach the free bracket with the two screws.

 (e)  
Make sure that you can read the replacement date on the ULB.

 (f)  
Tighten all the screws.

 S 412-115
 (2)  
AIRPLANES WITH A DOOR 5 OVERHEAD CREW REST COMPARTMENT; Close the access panel for the aft equipment center in the overhead crew rest compartment near door 5.

 S 412-117

 (3)  
AIRPLANES WITHOUT A DOOR 5 OVERHEAD CREW REST COMPARTMENT; Close the access panel for the aft equipment center near door 5.

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 AIRPLANE CONDITION MONITORING SYSTEM - DESCRIPTION AND OPERATION
________________________________________________________________
 1.  General_______
 A.  The airplane condition monitoring system (ACMS) collects, monitors, records, and distributes airplane data for detailed system analysis of airplane performance. The ACMS produces the reports from this data for maintenance requirements and system troubleshooting.
 B.  The ACMS consists of a Data Management Unit (DMU) and a Quick Access Recorder (QAR) (Fig. 1).
 C.  The DMU interfaces with many airplane systems to receive the parameters it records (Fig. 2).
 D.  The DMU receives digital data from the following inputs:
 (1)
AFCS Mode Control Panel (MCP) (AMM 22-10-00/001)

 (2)
Flight Control Computers (FCCs) (AMM 22-10-00/001)

 (3)
Fuel Quantity Processor Unit (FQPU) (AMM 28-41-00/001)

 (4)
Captain's and First Officer's Clocks (AMM 31-25-00/001)

 (5)
Digital Flight Data Acquisition Card (DFDAC) (AMM 31-31-00/001).

 (6)
EFIS/EICAS Interface Units (EIUs) (AMM 31-61-00/001).

 (7)
Bus Control Units (BCUs) (AMM 32-42-00/001)

 (8)
Air Data Computers (ADCs) (AMM 34-12-00/001)