-
the Air Data Reference (ADR) portion which supplies air data parameters (ATA 34-13)

 -
the Inertial Reference (IR) portion which supplies attitude and navigation

 parameters (ATA 34-14). These parameters are transmitted to the user systems on ARINC 429 BUSES. The Built-In Test Equipment (BITE) is included in the ADIRUs and the ADMs. It detects and identifies a failure related to the ADIRS and reports it to the Centralized Fault Display System (CFDS) (ATA 34-18).
 1EFF : ALL 1 34-10-00Page 1 1 1 Feb 01/02 1 1 1CES 1

 AIR DATA/INERTIAL REFERENCE SYSTEM (ADIRS) - MAINTENANCE PRACTICES
__________________________________________________________________
 TASK 34-10-00-860-002
 ADIRS Start Procedure

R WARNING : MAKE SURE THAT ALL PERSONS ARE AWAY FROM THE SATCOM ANTENNAS (MORE
_______ R THAN 3 METERS) WHEN YOU DO THIS TEST. THE SATCOM ANTENNAS USE HIGH R POWER WHEN THEY TRANSMIT AND CAN CAUSE INJURY TO PERSONS.
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  access platform 1.6 m (5 ft. 3 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002  Energize the Aircraft Electrical Circuits from the External Power 31-60-00-860-001 EIS Start Procedure
 3. Job Set-up
__________
 Subtask 34-10-00-860-061

 A. Aircraft Maintenance Configuration
 (1)
 Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).

 (2)
 Do the EIS start procedure (PFDs and NDs only) (Ref. TASK 31-60-00-860-001).

 1EFF : ALL 1 34-10-00Page 201 1 1 Nov 01/04 1 1 1CES 1 Subtask 34-10-00-010-065

 B. Get Access
 (1)
 Put the access platform in position at the access door 822.

 (2)
 Open the access door 822

 (3)
 On the battery power center 105VU:

 -loosen the two screws and remove the protective cover
 Subtask 34-10-00-865-070
 C. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU NAV PROBES/ADIRU3/PWR/SWTG 8FP F09 49VU NAV PROBES/ADIRU 1/AND AOA 1/26VAC 5FP1 F07 49VU NAV PROBES/ADIRU1/115VAC 4FP1 F06
 105VU ADIRS/ADIRU1/28VDC 6FP1 C02
 **ON A/C 001-049, 051-061, 101-105, 201-203,
 121VU ADIRS/ADIRU/2PWR/SHED 10FP N11 121VU ADIRS/ADIRU/3PWR/SWTG 9FP N10 121VU ADIRS/ADIRU/2/26VAC AND AOA 5FP2 N09 121VU ADIRS/ADIRU/3/26VAC AND AOA 5FP3 N08 121VU ADIRS/ADIRU/2/115VAC 4FP2 N07 121VU ADIRS/ADIRU/3/115VAC 4FP3 N06 121VU ADIRS/ADIRU/2/28VDC 6FP2 N05 121VU ADIRS/ADIRU/3/28VDC 6FP3 N04

R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
 121VU ADIRS/ADIRU/2PWR/SHED 10FP N10 121VU ADIRS/ADIRU/3PWR/SWTG 9FP N09 121VU ADIRS/ADIRU/2/26VAC AND AOA 5FP2 N08 121VU ADIRS/ADIRU/3/26VAC AND AOA 5FP3 N07 121VU ADIRS/ADIRU/2/115VAC 4FP2 N06 121VU ADIRS/ADIRU/3/115VAC 4FP3 N05 121VU ADIRS/ADIRU/2/28VDC 6FP2 N04 121VU ADIRS/ADIRU/3/28VDC 6FP3 N03
 1EFF : ALL 1 34-10-00Page 202 1 1 Aug 01/05 1 1 1CES 1R **ON A/C ALL

 4. Procedure
_________
 Subtask 34-10-00-710-065

 A. ADIRS Start Procedure
 (1)
 On the overhead panel, on the ADIRS CDU, set the three OFF/NAV/ATT selector switches to NAV.

 (2)
 Make sure that the ON BAT light comes on for 5 seconds and the ALIGN legend of the IR1, IR2 and IR3 annunciators comes on.

 (3)
 Make sure that the FAULT and OFF legends of the ADR1, ADR2 and ADR3 pushbutton switches are off.

 (4)
 On the CAPT and F/O main instrument panels, on the PFDs :

 -
make sure that the CAS, ALT and V/S come into view.

 -
make sure that the attitude data come into view 40 seconds approximetaly after the three selector switches are at NAV.

 (5)
 On the ADIRS CDU, set the SYS DISPLAY selector switch to 1 and the DATA DISPLAY selector switch to PPOS, and make sure that dashes are shown on the CDU display.

　
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