On the MCDU:
-
the CAB PRESS CONT 1 TEST/CALIBRATIONpage comes on and shows:ECS PACKS ------------ OFF GROUND AIR SUPPLY ---- OFF LFES ----- SET TO 14000 FT ADIRS 1,2,3 ----------- ON MODE SEL ------------ AUTO comes on.
On the ECAM upper display unit:
-
the green MAN LDG ELEV memo messagecomes on.
On the ECAM lower display unit:
-
the green AUTO xxx FT indication changes to the green MAN 14000 FT indication.
On the MCDU, the CAB PRESS CONT 1TEST/CALIBRATION menu page shows:IN PROGRESS (20...90S) comes on, thenthe message TEST OK RESET LFES - > AUTO comes on.
(1)
Make sure that both automatic pressure control systems are operative.
(2)
Put a tag in the cockpit to tell the flight crew that the manual pressure control system is inoperative.
(3)
Make an entry in the aircraft technical logbook.
5. Close-up
________ Subtask 21-31-00-860-064
A. Aircraft Maintenance Configuration
(1)
On the CABIN PRESS panel 25VU, set the LDG ELEV selector to AUTO.
(2)
Do the ADIRS stop procedure (Ref. TASK 34-10-00-860-005).
(3)
Do the EIS stop procedure
(Ref. TASK 31-60-00-860-002).
(4)
On the MCDU, push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
(5)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
R TASK 21-31-00-040-004
R Verification Test of the Safety Valves (6HL,7HL) (Position Indication on ECAM
R CAB PRESS Page)
R 1. Reason for the Job__________________
R Refer to the MMEL TASK: 21-31-07
R Pressure Control and Monitoring
R Safety Valves
R Position Indication on
R ECAM CAB PRESS page
R 2. Job Set-up Information______________________
R A. Referenced Information
R -------------------------------------------------------------------------------
R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R 21-31-00-991-005 Fig. 401
R 3. Job Set-up__________
R Subtask 21-31-00-010-060
R A. Get Access
R (1) Remove the food trolleys from the Aft galley.
R (2) Remove the access panel (1).
R 4. Procedure_________
R (Ref. Fig. 401/TASK 21-31-00-991-005)
R Subtask 21-31-00-280-052
R A. Visual Inspection of the Safety Valves (6HL,7HL).
R (1) Do a visual inspection of the two safety valves (2).
R NOTE : The safety valves (2) must be in the closed position. The ring____
R gate (3) must seat properly on the rubber seal (4).
R R Safety Valves (6HL,7HL) - Visual Inspection Figure 401/TASK 21-31-00-991-005
1EFF : 1 1 1CES ALL 1 111 21-31-00 Page 413 Feb 01/99
R 5. Close-up________
R Subtask 21-31-00-410-058
R A. Close Access
R (1) Make sure that the work area is clean and clear of tool(s) and other
R items.
R (2) Install the access panel (1) and the food trolleys in the Aft galley.
R TASK 21-31-00-040-005
R Verification Test of the Safety Valves (6HL,7HL) (OPEN Caution on ECAM)
R 1. Reason for the Job__________________
R Refer to the MMEL TASK: 21-31-08
R Pressure Control and Monitoring
R Safety Valve
R OPEN Caution on ECAM.
R 2. Job Set-up Information______________________
R A. Referenced Information
R -------------------------------------------------------------------------------
R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
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