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  B757 - 200 MINIMUM EQUIPMENT LIST
EICAS STATUS MESSAGES
WARN ELEX
PLACARD
As appropriate
MAINTENANCE (M)
Perform the following test to determine if FQIS processor channels operate normally:
NOTE: It is preferable that this test be performed with less than 7000 kgs§ total fuel.
 Apply electrical power per AMM 24-22-00. Close the battery and RIGHT DC BUS circuit breakers.
 Close the fueling panel door.
 Open the FUEL QTY L and FUEL QTY R circuit breakers on the P11 overhead panel.
 Verify that the FUEL QTY displays have gone blank.
 Test FQIS processor channels:
 Close FUEL QTY L circuit breaker, wait ten seconds, and record the indicated fuel quantity for each tank.
 Open FUEL QTY L circuit breaker and then close FUEL QTY R circuit breaker, wait 10 seconds and record the indicated fuel quantity for each tank.
 Close FUEL QTY R circuit breaker.
 Compare the quantities recorded in steps 5A and 5B. If quantities differ by 200 kgs or less per tank, the fuel quantity indicating processor unit is acceptable.
For dispatch with the FMC Annunciator Light inoperative, verify that FMC EICAS annunciation and CDU MSG light operate normally:
NOTE: This test uses two people, one in the Flight Compartment and one in the Main Equipment Center.
 Open the FMCS CMPTR RIGHT Circuit Breaker on the P11 Panel.
 Push the CLR key on the left CDU to clear all the messages on the left CDU.
 Push the TEST button on the front of the left FMC.
 Make sure the EICAS message FMC MESSAGE is shown and the CDU MSG light is illuminated.
 Close the FMCS CMPTR RIGHT Circuit Breaker on the P11 Panel.
 Open the FMCS CMPTR LEFT Circuit Breaker on the P11 Panel.
 Push the CLR key on the right CDU to clear all the messages on the right CDU.
 Push the TEST button on the front of the right FMC.
 Make sure the EICAS message FMC MESSAGE is shown and the CDU MSG light is illuminated.
 Close the FMCS CMPTR LEFT Circuit Breaker on the P11 Panel.
OPERATIONS (O)
1. For all operations with one FMC inoperative:
A. IRS alignment must be completed before airplane moves.
 
B. Use of LNAV and VNAV with flight director:
 On the side with the inoperative FMC, select the opposite FMC or the on-side CDU with the NAV source select switch.
 LEFT FMC INOPERATIVE - When operating in flight director mode with both F/D switches ON, LNAV and VNAV will engage if the Captain’s NAV source switch is selected to R FMC or L CDU position. Otherwise, LNAV and VNAV will engage if the right autopilot is engaged or only the right F/D is ON. Turning off the left F/D switch would allow use of LNAV and VNAV, but only the right flight director would operate.
Procedure: After liftoff (with F/D in TO mode), use HDG SEL and FL CH modes as desired until Captain’s NAV selector is moved to an alternate source, or right autopilot is engaged. Then use LNAV and VNAV as desired.
　
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