R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
21-52-41-991-002 Fig. 402
-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R **ON A/C 401-499,
R 21-52-41-991-002-B Fig. 402A **ON A/C 001-049, 051-099, 101-105, 151-158, 201-210,
R 21-52-41-991-003 Fig. 403 **ON A/C 106-149, 159-199, 211-299, 301-399,
R R 21-52-41-991-003-A **ON A/C 401-499, Fig. 403A
R 21-52-41-991-003-C **ON A/C ALL Fig. 403B
R 21-52-41-991-004 Fig. 404 **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 21-52-41-991-005 **ON A/C 401-499, Fig. 405
21-52-41-991-005-A **ON A/C ALL Fig. 405A
21-52-41-991-006 Fig. 406
3. Job Set-up__________ Subtask 21-52-41-861-051
A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002). Subtask 21-52-41-865-050
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 10HM
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 49VU AIR COND/FLOW/CTL &/IND1 **ON A/C 401-499, 1HB D07
R 49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 52HH D08
R 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 1HH 3HH X22X21
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
R R 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 4HH Y19
R R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC **ON A/C 106-149, 303-399, 2HH Y18
R 122VU 4HH Y19
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
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 11HM
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
122VU AIR COND/FLOW/CTL AND IND/2 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 2HB 21HH 23HH 24HH 22HH V21W22W21Y21Y20
R **ON A/C 401-499,
R 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
**ON A/C ALL
Subtask 21-52-41-010-050-A
C. Get Access
(Ref. Fig. 401/TASK 21-52-41-991-001-A)
(1) Remove the access panel/s (Ref. TASK 53-35-13-000-002).
(a) FOR 10HM - 191BB - 191KB,
Access Panel Location Figure 401/TASK 21-52-41-991-001-A
R 1EFF : 1 1 1CES ALL 1 111 21-52-41 Page 405 Feb 01/05
(b) FOR 11HM - 192FB - 192KB.
Subtask 21-52-41-941-050
D. Safety Precautions
(1) On the panel 30VU:
(a) Make sure that: - the APU BLEED pushbutton switch is in the off position (the ON legend is off) and, - the ENG 1 BLEED and the ENG 2 BLEED pushbutton switches are in the off position (the OFF legends are on).
(b) Put a warning notice in position to tell persons not to operate these pushbutton switches.
(2) On the HP ground connector put a warning notice in position to tell persons not to supply the ground air.
4. Procedure_________
R
Subtask 21-52-41-020-050
A. Removal of the Cross Beam and the Duct Connectors
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