-push the line key adjacent to the RETURN indication until the MCDU MENU page comes on,
-set the BRT knob to off.
(2)
De-energize the aircraft electrical circuits. (Ref. TASK 24-41-00-862-002)
(3)
Make sure that the work area is clean and clear of tool(s) and other items.
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
TASK 49-00-00-720-001
APU Performance Parameters (GTCP 36-300)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. 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 31-36-00-740-008 Access to the Parameter Call-Up Menus 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 49-00-00-710-001 Self-Test of the ECB (59KD) (GTCP 36-300) 49-00-00-710-004 Operational Test of the APU (4005KM) (GTCP 36-300) 49-00-00-991-001 Fig. 501 49-00-00-991-002 Fig. 502 49-00-00-991-003 Fig. 503 49-00-00-991-004 Fig. 504 49-00-00-991-005 Fig. 505 49-00-00-991-006 Fig. 506 49-00-00-991-007 Fig. 507 49-00-00-991-011 Fig. 508
3. Job Set-up
__________
Subtask 49-00-00-860-083
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
Subtask 49-00-00-865-094
B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU APU/FUEL/BLOW OFF/PUMP 2QC B14 121VU APU/FUEL/BLOW OFF/CTL 1QC K39 121VU APU/FIRE AND OVHT/DET/LOOP B 2WG L44 121VU APU/FIRE AND OVHT/DET/LOOP A 1WG L43 121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41 121VU APU/FIRE/EXTIG/SQUIB/B 2WF L39 121VU APU/FIRE/EXTIG/SQUIB/A 1WF L38 121VU APU/FIRE/LP VALVE/NORM 4WF M42 121VU APU/FIRE/LP VALVE/STBY 3WF M41 121VU APU/FUEL/LP VALVE/CTL 1QF M40 121VU APU/FUEL/LP VALVE/SPLY 2QF M39 121VU APU/FUEL/PUMP/CTL 3QC M38
4. Procedure_________
Subtask 49-00-00-710-058
A. APU Performance Test
(1)
Read-out the LAST LEG REPORT of the ECB and make sure that there is no fault available.
(2)
Do the self test of the ECB (Ref. TASK 49-00-00-710-001). Make sure that no maintenance message is shown.
(3)
Start and operate the APU (Ref. TASK 49-00-00-710-004).
(4)
On the APU system page of the lower ECAM display unit, read the EGT values under the subsequent conditions:
-
EGT in Ready to Load (RTL) mode,
-
EGT in ECS 0/1 pack mode,
-
EGT in ECS 2 pack mode,
-
EGT in MES mode,
NOTE : The aircraft configuration for
____
.RTL mode:
-APU operates at more than 95% speed, .ECS 0/1 pack mode:
-
the APU BLEED pushbutton switch is in ON position,
-
the PACK 1 or PACK 2 pushbutton switch is in the on
position.
.ECS 2 pack mode:
-
the APU BLEED pushbutton switch is in ON position,
-
the PACK 1 and PACK 2 pushbutton switch is in the on
position.
.MES mode:
-
the APU BLEED pushbutton switch is in ON position, - one engine dry motoring.
(5) Read-out the AIDS data for the subsequent ALPHA CALL UPs in the TABLE A (Ref. TASK 31-36-00-740-008).
NOTE : When you enter the ALPHA code ADW1 the APU operating status is
____
shown in binary codes.
Subtask 49-00-00-720-054
B. APU Performance Parameters
(1) APU Performance Parameter Table ----------------------------------------------------------------------------
| APU BLEED | APU BLEED |PARAMETER
| OFF | ON |RANGE ---------+------------+------------------------------------------+(ALL MODES) ALPHA | RTL (IDLE) | 0/1 PACK ECS | 2 PACK ECS | MES | ---------+------------+--------------+-------------+-------------+-----------LCIT (.C)| 37.8 | 37.8 | 37.8 | 50 | +/-0.5 ---------+------------+--------------+-------------+-------------+-----------P2A (Bar)| 1.013 | 1.013 | 1.013 | 1.013 | +/-0.005 ---------+------------+--------------+-------------+-------------+-----------IGV (Deg)| 22 | 56 | 70 | 78 | +/-1.0
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