Captain's and F/O's FLT DIR switches to ON.
TURB/SPEED switch to PMS
Auto Throttle (A/T) Engage switch to ON
(13)
Place the TURB/SPEED switch to OFF. Verify that the A/T engage switch drops to OFF and that the A/T red warning lights flash, on both FMA's.
(14)
Place the A/T engage switch to ON and verify that the switch drops to OFF.
(15)
Reset (extinguish) the A/T red warning lights by pressing an A/T disconnect switch on the throttle levers.
(16)
Position all engine throttle levers to the aft limit.
(17)
On IB airplanes, press the EPR mode switch (to select EPR mode) on the Captain's A/T mode select panel. Verify that SELECT is illuminated on both the Captain's and F/O's EPR switches.
(18)
On AF airplanes, press the N1 mode switch (to select N1 mode) on the Captain's A/T mode select panel. Verify that SELECT is illuminated on both the Captain's and F/O's N1 switches.
(19)
Press the PMS CDU STS/TEST key. Press the CDU line select 1 key, verify the key illuminates.
(20)
Place the A/T engage switch to ON. Verify that the switch remains ON and that the throttle levers move in the forward (advance) direction.
(21)
Press and hold the PMS CDU STS/TEST key. Verify that there is no movement of the throttle levers in the aft (retard) direction.
(22)
Release the CDU STS/TEST key.
EFFECTIVITY
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(23) Return the following switches on the A/P-F/D MSP to the positions shown:
Captain's and F/O FLT DIR switches to OFF
A/T Engage switch to OFF
(24)
Reset (extinguish) the A/T red warning by pressing an A/T disconnect switch on the throttle levers.
(25)
Position the throttle levers to the aft limit.
(26)
Close the GND SAFETY RELAY circuit breaker, to place the relay in the GND position.
(27) If the PMS is no longer required, restore airplane to normal. AS. Auto Mode Transition (ATS to PMS)
(1) If required prepare for test as described in paragraph D.
(2) Ensure that all engines are not operating.
(3) Ensure that the trailing edge (TE) flaps and the leading edge (LE)
flaps are retracted to the full up position.
NOTE:____ For trailing edge flap operation refer to 27-51-00,
Maintenance Practices. For leading edge flap operation
refer to 27-81-00, Maintenance Practices.
(4) Open LRRA-1 and LRRA-2 circuit breakers, to simulate a radio
altitude above 2500 feet, on LRRA-1 and LRRA-2 respectively.
(5) Ensure that present position latitude and longitude coordinates are
entered into each INS (Refer to 34-41). Verify that the mode
selector switch, on each INS MSU, is set to ALIGN.
NOTE:____ If the INS has been in the NAV mode, cycle the INS through
STANDBY back to ALIGN and reload present position.
(6)
Ensure that gross weight of airplane is entered into the PMS.
(7)
On IB airplanes, select CLB limit mode on the PMS limit select panel (LSP). Verify that the PMS limit indicator (LI) displays CLB and some value of EPR limit (no dashes or blank display) indicating a valid EPR limit condition.
(8)
On AF airplanes, select CLB limit mode on the PMS limit select panel (LSP). Verify that the PMS limit indicator (LI) displays CLB and some value of N1 limit (no dashes or blank display) indicating a valid N1 limit condition.
(9)
Open the GND SAFETY RELAY circuit breaker, to place the relay in the AIR position. (Refer to 32-09-02, Ground Safety Relay -Adjustment/Test).
(10)
Ensure that the auto throttle system is operational (Refer to 22-31).
(11)
Verify that the Captain's and F/O's FLT DIR CMPTR select switches are set to 'A'.
EFFECTIVITY
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(12) Place the following switches on the A/P-F/D MSP to the positions shown:
Captain's and F/O's FLT DIR switches to ON
TURB/SPEED switch to OFF
Auto Throttle (A/T) Engage switch to OFF.
(13)
Position all engine throttle levers to the aft limit.
(14)
On IB airplanes, press the EPR mode switch (to select EPR mode) on the Captain's A/T mode select panel. Verify that SELECT is illuminated on both the Captain's and F/O's EPR switches.
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本文链接地址：747飞机维护手册AMM CHAPTER 34 - NAVIGATION 第34章导航4(164)
