(10) 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 PMS
Auto Throttle (A/T) Engage switch to ON
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(11)
Verify that the flight director (FD) pitch command bar on each ADI is in view.
(12)
Open CADC No. 2 115V AC circuit breaker, on the P7 panel, and verify the following (allow 30 seconds for these readings):
(a)
PMS (amber) annunicator on the pilot's center instrument panel illuminates.
(b)
The A/T Engage switch drops to OFF.
(c)
A/T red warning light flashes on both FMA's.
(d)
Flight director (FD) pitch command bar on each ADI is driven out of view.
(e)
TURB/SPEED switch remains in the PMS position.
(13)
Close CADC No. 2 115 V AC circuit breaker.
(14)
Return the following switches on the A/P-F/D MSP to the positions shown:
TURB/SPEED switch to OFF
Captain's and F/O's FLT DIR switches to OFF
Reset A/T and PMS warnings
(15) Press the CDU STS/TEST key to clear PMS warning on the CDU.
(16) If the PMS is no longer required, restore airplane to normal. AR. Manual Mode Transition (PMS to ATS).
(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.
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(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'.
(12) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747飞机维护手册AMM CHAPTER 34 - NAVIGATION 第34章导航4(163)
