AIRPLANES WITH PMS 02 Page 102 Apr 25/82
34-62-00
PAGE TITLE
PAGE 1 OF 1CODE 14
STS 14 1/1
PMS TURN OFF
STEP (1)
INS1 1--55 ACTIVE
ACTION MESSAGE
INS2 1--55
ACTION MESSAGE
CODE 38
STS 38 1/1
CODE 52
PMS TURN OFF
INS1
STS 52 1/1
INS2 PMS TURN OFF
STEP (2)
INS1 1--55 ACTIVE
INS2 1--55
ACTION MESSAGE
CODE 38
STS 38 1/1
PMS ADVISORY ONLY
INS1
STS 1/1
STEP (3)
INS2 PMS
CDU DISPLAY
INS1 1--55 ACTIVE
INS2 1--55
Displaying Malfunction Codes
Figure 101
EFFECTIVITY
AIRPLANES WITH PMS 714 Page 103
34-62-00
Apr 25/82
MALF CODE MALFUNCTION DETECTED ACTION CODE PMS COMPUTER UNIT VALIDS
VALID SPEED VERTICAL STEERING VALID VALID EPRL
12 14 11 25-Millisecond Loop Memory Sum Check Loss of EIU Data A A A 1 1 1 2 2 2 3 3 3
18 15 Program Pin Combination EPR (N1) Limit Mode to AIDS A E 1 2 3
19 20 21 TAT to AIDS 5V TAT/EPR (N1) Reference EPR (N1) Limit Bug Drive E C C 3 3
22 23 24 EPR (N1) Limit to FFRATS EPR (N1) Limit Mode to FFRATS TAT to FFRATS C C C 3 3 3
26 27 150-Millisecond Loop Auto Throttle Servo (AXE) Test A F 1 1 2 2 3 3
31 28 29 30 Tach Monitor Throttle Rate Command Feedback 4INS Malfunction Code HSI Test Response From INS B B G B 1 1 1
32 33 Vertical Steer Feedback Trailing Edge Flaps Conversion B B 1 1 2 2
36 37 INS-1 Waypoint Data Sum Check INS-2 Waypoint Data Sum Check D D 1 1 2 2
PMS Malfunction Codes
Figure 102 (Sheet 1)
EFFECTIVITY AIRPLANES WITH PMS
714 Page 104
34-62-00
Dec 25/82
MALF CODE MALFUNCTION DETECTED ACTION CODE PMS COMPUTER UNIT VALIDS
VALID SPEED VERTICAL STEERING VALID VALID EPRL
38 Auto Throttle Servo Invalid B 1
39 INS No. 1 Vertical Accel. Invalid or Limit D 1 2
40 Limit INS No. 2 Vertical Accel. Invalid or D 1 2
41 42 43 600-Millisecond Loop Fine Altitude Select Error Conversion INS No. 1 Warn or No Valid Data A A D 1 1 1 2 2 2 3 3
44 INS No. 2 Warn or No Valiid Data D 1 2
45 Engines) Invalid EPR (PW & RR Engines) or N1 (GE B 1 2 3
46 Altitude Flap Invalid A 1 2 3
47 48 49 Fine Altitude Conversion Mach Conversion or Limit Coarse Altitude Conversion A A A 1 1 1 2 2 2 3 3 3
50 51 52 TAS Conversion or Limit CAS Conversion or Limit CAS/TAS/MACH Flag Invalid A A A 1 1 1 2 2 2 3 3 3
53 54 55 Barometric Correction Conversion Coarse Altitude Select Error Conversion TAT Conversion or Limit A A A 1 1 1 2 2 2 3
ACTION CODE ACTION MESSAGE (PMS CDU Data Line 1)
F E A B C D OK-LOG MALF AXE FAIL TURN OFF ADVISORY ONLY INS FAIL CHG A/P FFRATS/INST INOP
PMS Malfunction Codes
Figure 102 (Sheet 2)
EFFECTIVITY AIRPLANES WITH PMS
714 Page 105
34-62-00
Dec 25/82Malfunction causes Speed valid signal to fail.
When TURB/SPEED switch is in PMS position and A/T engage switch is ON, failure of speed valid signal causes A/T switch to fall to OFF position. Hence, PMS thrust commands are disconnected from the throttle servomotor and the A/T red warning light (on FMA) flashes.
Malfunction causes Vertical Steering valid signal to fail.
When flight director is ON and TURB/SPEED switch is in PMS position, failure of Vertical Steering valid signal causes ADI pitch command bar to be driven out of view.
When autopilot is engaged and TURB/SPEED switch is in PMS position, failure of Vertical Steering valid signal causes A/P red warning light (on FMA) to turn on.
IB airplanes :
Malfunction causes EPRL valid to fail.
If EPR indicator is in automatic mode, failure of EPRL Valid signal causes indicator warning flag to cover EPR command counter.
AF airplanes:
Malfunction causes N1 valid to fail.
If N1 indicator is in automatic mode, failure of N1 Valid signal causes indicator warning flag to cover N1 command counter.
4 INS Malfunction Detected.
INS transmits malfunction (failure) codes to the PMS. These codes cause PMS malfunction codes (pertaining to the INS malfunctions) to be displayed consecutively on the PMS CDU. Record PMS codes until they repeat, then press STS/TEST key on PMS CDU. Refer to 34-41 for required action on INS.
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747飛機維護手冊AMM CHAPTER 34 - NAVIGATION 第34章導航4(136)
