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757 MAINTENANCE MANUAL
FLIGHT DATA RECORDER SYSTEM - ADJUSTMENT/TEST
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1. General_______
A. This procedure has two tasks. They are the operational test and the system test.
TASK 31-31-00-715-754-002
2. Flight Data Recorder Operational Test_____________________________________
A. General
(1) The operational test makes sure the switches for the manual and automatic power sources operate correctly. A BITE test is also included in this operational test. No test equipment is necessary.
B. References
(1)
24-22-00/201, Electrical Power Control
(2)
31-31-01/201, DFDR Removal and Installation
C. Prepare for the Test
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(1)
Supply electrical power (AMM 24-22-00/201).
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(2)
Make sure these circuit breakers on the overhead circuit breaker panel, P11, are closed:
(a)
11J2, EICAS CMPTR LEFT
(b)
11J3, EICAS UPPER IND
(c)
11J7, FLIGHT RECORDER AC
(d)
11J8, FLIGHT RECORDER DC
(e)
11J29, EICAS CMPTR RIGHT
(f)
11J30, EICAS LOWER IND
(g)
11J31, EICAS DISPLAY SW
(h)
11J32, EICAS PILOTS DISPLAY
(i)
11S1, AIDS
(j)
11S15, AIR/GND SYS 1
(k)
11S19, AIR/GND SYS 2
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(3) Open these circuit breakers on the main power distribution panel, P6, and attach DO-NOT-CLOSE tags:
(a)
6E1, FUEL VALVES L SPAR
(b)
6E2, FUEL VALVES R SPAR
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757
MAINTENANCE MANUAL
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(4) Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11D19, ENGINE START CONT LEFT
(b)
11D20, ENGINE START CONT RIGHT
D. Flight Recorder Operational Test
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(1) Do the Flight Recorder Control Panel (FRCP) Test
(a)
Make sure the function switch on the FRCP is in the NORM position.
(b)
On the FRCP, make sure the OFF light is on.
(c)
On the FRCP, set the funtion switch to the TEST position and hold.
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