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

 (3)
 Make sure that the protective cover is removed from the battery power center 105VU.

 Subtask 34-12-34-865-051
 C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------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
 1EFF : ALL 1 34-12-34Page 406 1 1 Aug 01/05 1 1 1CES 1 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**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

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 34-12-34-420-050

 A. Installation of the ADIRU (1FP1, 1FP2, 1FP3)
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Remove the blanking caps from the electrical connectors (1).

 (4)
 Make sure that the electrical connectors (1) are clean and in the correct condition.

 (5)
 Push the ADIRU (6) on its rack (3) to connect the electrical connectors (1).

 NOTE : Make sure that the ADIRU (6) correctly engages in the
____
 centering pins (2).

 (6) Engage the nuts (4) on the lugs (5) and tighten.
 1EFF : ALL 1 34-12-34Page 407 1 1 Aug 01/05 1 1 1CES 1 Subtask 34-12-34-865-052

 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): FOR 1FP1 4FP1, 5FP1, 6FP1 FOR 1FP2 4FP2, 5FP2, 6FP2, 10FP FOR 1FP3 4FP3, 5FP3, 6FP3, 8FP, 9FP
 Subtask 34-12-34-740-050
 C. BITE Test
 (1) Do the BITE Test of the ADIRS (Ref. TASK 34-13-00-740-002) (Ref. TASK 34-14-00-740-001).
 NOTE : If the airline operates the aircraft in CAT 3 conditions, do
____
 the LAND CAT III capability test
 (Ref. TASK 22-97-00-710-001).

 (2) As an alternative procedure, you can do an operational test without the CFDS (installed ADIRU only)
 5. Close-up
________
 Subtask 34-12-34-860-051
 A. Put the aircraft back to its initial configuration.
 (1)
 On the overhead panel 23VU, release and push the FLT CTL/ELAC1 and FLT CTL/SEC1 pushbutton switches (the OFF legend comes on and goes off).

 (2)
 On the overhead panel 24VU, release and push the FLT CTL/ELAC2, FLT CTL/SEC2 and FLT CTL/SEC3 pushbutton switches (the OFF legend comes on and goes off).

 (3)
 Make sure that the work area is clean and clear of tool(s) and other items.

 1EFF : ALL 1 34-12-34Page 408 1 1 May 01/04R 1 1 1CES 1

 Subtask 34-12-34-410-050
 B. Close Access R (1) Close the access door 824 (Ref. TASK 52-41-00-410-002).
 (2)
 Install the protective cover on the battery power center 105VU.

 (3)
 Tighten the two screws.

 (4)
 Close the access door 822.

 (5)
 Remove the access platform(s).

 1EFF : ALL 1 34-12-34Page 409 1 1 Feb 01/02 1 1 1CES 1 REFERENCE UNIT - AIR DATA/INERTIAL (ADIRU) (1FP1,1FP2,1FP3) - INSPECTION/CHECK

______________________________________________________________________________
 TASK 34-12-34-200-001
 ADIRU Removal Criteria
 1. Reason for the Job
__________________
 To make sure that the performance parameters of the ADIRUs are satisfactory
　
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