(2)
 Open the access door 822.

 (3)
 On the battery power center 105VU:

 -loosen the two screws and remove the protective cover.
 1EFF : ALL 1 34-12-34Page 401 1 1 May 01/04R 1 1 1CES 1

 (4)
 Put the access platform in position in the zone 128 at the acces door 824

 (5)
 Open the access door 824

 Subtask 34-12-34-865-050
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 1FP1
 49VU NAV PROBES/ADIRU 1/AND AOA 1/26VAC 5FP1 F07 49VU NAV PROBES/ADIRU1/115VAC 4FP1 F06 105VU ADIRS/ADIRU1/28VDC 6FP1 C02
 FOR 1FP2
 **ON A/C 001-049, 051-061, 101-105, 201-203,
 121VU ADIRS/ADIRU/2PWR/SHED 10FP N11 121VU ADIRS/ADIRU/2/26VAC AND AOA 5FP2 N09 121VU ADIRS/ADIRU/2/115VAC 4FP2 N07 121VU ADIRS/ADIRU/2/28VDC 6FP2 N05

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/2/26VAC AND AOA 5FP2 N08 121VU ADIRS/ADIRU/2/115VAC 4FP2 N06 121VU ADIRS/ADIRU/2/28VDC 6FP2 N04
 **ON A/C ALL
 FOR 1FP3 49VU NAV PROBES/ADIRU3/PWR/SWTG 8FP F09
 **ON A/C 001-049, 051-061, 101-105, 201-203,
 121VU ADIRS/ADIRU/3PWR/SWTG 9FP N10 121VU ADIRS/ADIRU/3/26VAC AND AOA 5FP3 N08 121VU ADIRS/ADIRU/3/115VAC 4FP3 N06 121VU ADIRS/ADIRU/3/28VDC 6FP3 N04
 1EFF : ALL 1 34-12-34Page 402 1 1 Aug 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
 121VU ADIRS/ADIRU/3PWR/SWTG 9FP N09 121VU ADIRS/ADIRU/3/26VAC AND AOA 5FP3 N07 121VU ADIRS/ADIRU/3/115VAC 4FP3 N05 121VU ADIRS/ADIRU/3/28VDC 6FP3 N03
 **ON A/C ALL
 4. Procedure
_________
 (Ref. Fig. 401/TASK 34-12-34-991-002)
 Subtask 34-12-34-020-050

 A. Removal of the ADIRU (1FP1, 1FP2, 1FP3) NOTE : The procedure is the same for the three ADIRUs 1FP1, 1FP2 and
____
 1FP3.

 (1)
 Loosen the nuts (4).

 (2)
 Lower the nuts (4).

 (3)
 Pull the ADIRU (6) on its rack (3) to disconnected the electrical connectors (1).

 (4)
 Remove the ADIRU (6) from its rack (3).

 (5)
 Put blanking caps on the disconnected electrical connectors (1).

 1EFF : ALL 1 34-12-34Page 403 1 1 Aug 01/05 1 1 1CES 1

R  Air Data/Inertial Reference Unit (ADIRU) Figure 401/TASK 34-12-34-991-002
 1EFF : 1 1 1CES  ALL  1 111 34-12-34 Page 404 Feb 01/05

 TASK 34-12-34-400-001
 Installation of the ADIRU (1FP1, 1FP2, 1FP3)

 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 -------------------------------------------------------------------------------
22-97-00-710-001 Operational Test of the LAND CAT III Capability
 34-13-00-740-002 INTERFACE TEST of the ADR
 34-14-00-740-001 Interface Test of the IR

R  52-41-00-410-002 Close the Avionics Compartment Doors after Access 34-12-34-991-002 Fig. 401
 3. Job Set-up
__________
 Subtask 34-12-34-860-050

 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the access platform is in position at the access door

 824.

 (2)
 Make sure that the access door 824 is open.

 1EFF : ALL 1 34-12-34Page 405 1 1 Feb 01/02 1 1 1CES 1 Subtask 34-12-34-010-051

 B. Get Access
 (1)
 Make sure that the access platform is in position at the access door

 822.
　
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