-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
R **ON A/C 106-149, 303-399,
R 122VU 4HH Y19
R **ON A/C 401-499,
R R 122VU AIR COND/TEMP CTL SYS 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC 49HH 51HH 50HH X22 X21Y18
**ON A/C ALL
FOR 16HM
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
49VU AIR COND/FLOW/CTL &/IND1 122VU AIR COND/FLOW/MIXER/FLAP 122VU AIR COND/FLOW/CTL AND IND/2 122VU AIR COND/ZONE TEMP CTL/28VDC/SYS2 122VU AIR COND/ZONE TEMP CTL/28VDC/SYS1 122VU AIR COND/ZONE TEMP CTL/115VAC/SYS2 122VU AIR COND/ZONE TEMP CTL/115VAC/SYS1 122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 1HB 3HB 2HB 4HK 3HK 2HK 1HK 21HH 23HH 24HH 22HH D07V22V21V20V19V18V17W22W21Y21Y20
R **ON A/C 401-499,
R 122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC 53HH 55HH 56HH 54HH W22W21 Y21Y20
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R
**ON A/C ALL
Subtask 21-52-43-710-050
C. Test
(1)
Do the pre-conditioning through the HP ground connector or with the APU (Ref. TASK 12-33-21-618-001) (Ref. TASK 12-33-21-618-001).
(2)
Do a leak check of the pack downstream check-valve connections. NOTE : Leaks are not permitted.
____
(3)
After approx. 15 minutes stop the pre-conditioning (Ref. TASK 12-33-21-618-001) (Ref. TASK 12-33-21-618-001).
5. Close-up
________
Subtask 21-52-43-410-053-A
A. Close Access
(1)
Install the access panels:
(Ref. TASK 53-35-13-400-002)
(Ref. TASK 25-54-12-400-001)
(a)
FOR 15HM
-191BB and
-131PW.
(b)
FOR 16HM
-192FB and
-132PW.
(2)
Close the FWD cargo compartment door 825 (Ref. TASK 52-30-00-860-002).
(3)
Remove the access platform.
Subtask 21-52-43-862-051
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
CHECK VALVE - PACK DOWNSTREAM (15HM,16HM) - INSPECTION/CHECK____________________________________________________________
TASK 21-52-43-210-001
Detailed Visual Inspection of Pack-Air Check-Valve Flappers for Condition and Operation
1. Reason for the Job__________________
Refer to the MPD TASK: 215000-02
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-52-43-000-001 21-52-43-400-001 Removal of the Pack Downstream Check-Valves 15HM and 16HMInstallation of the Pack Downstream Check-Valves 15HM and 16HM
3. Job Set-up__________
Subtask 21-52-43-020-053
A. Remove the pack downstream check-valve (Ref. TASK 21-52-43-000-001).
4. Procedure_________
Subtask 21-52-43-210-052
R R A. Inspection of the Check Valve (P/N 769A0000-01 and 769A0000-02)
R R (1) Make sure that the check valve is clean.
R R R (2) Make a full visual inspection of the valve-flap and its seat, the hinge pin and the return spring of the valve-flap for signs of cracks, dents, marks or corrosion.
R R (3) Make sure that the valve-flap operates correctly on its hinge pin. To do this, move it by hand. Also make sure that the valve-flap touches its seat correctly.
R Subtask 21-52-43-210-053
R B. Inspection of the Check Valve (P/N 769B0000-01)
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