-
On the CAPT (IR1) and F/O (IR2) Navigation Displays (ND): The residual ground speed of the IR3 can be read on the CAPT ND by setting the ATT HDG selector switch to CAPT/3.
-
On the ADIRS CDU: . set the DATA DISPLAY selector switch to TK/GS . set the SYS DISPLAY selector switch to 1, 2, 3 . read the respective ground speed in the CDU display.
(b)
Compare the recorded ground speed values with the following limits:
-
if the residual ground speed error is 15 kts or greater after each of two consecutive flights, replace the ADIRU
-
if the residual ground speed error is 21 kts or greater at the end of any one flight, replace the ADIRU.
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IR - BCD and Special Output Words
Figure 025
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ATTITUDE, HEADING AND POSITION - ADJUSTMENT/TEST
________________________________________________ TASK 34-14-00-710-003 Operational Test of the Attitude/Heading (ATT/HDG) Switching Function WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
1.
Reason for the Job
__________________
Refer to the MPD TASK: 341400-01
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 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure
3. Job Set-up
__________ Subtask 34-14-00-010-050
A. Get Access
(1)
Put the access platform in position at the access door 822.
(2)
Open the access door 822.
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(3) On the battery power center 105VU:
-loosen the two screws and remove the protective cover.
Subtask 34-14-00-865-054
B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 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
**ON A/C ALL
121VU HYDRAULIC/LGCIU/SYS2 2GA Q35
121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34
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
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R **ON A/C ALL
Subtask 34-14-00-860-055
C. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
On the overhead panel : - on the FLT CTL panels 23VU and 24VU, make sure that the FAC, ELAC and SEC pushbutton switches are not pushed (in). The OFF legends are on. - on the ADIRS CDU, make sure that the three OFF/NAV/ATT selector switches are at OFF.
(3)
Do the EIS start procedure (PFD and ND only) (Ref. TASK 31-60-00-860-001).
4. Procedure
_________
Subtask 34-14-00-710-054
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