(b)
 The mixer unit and the recirculation fan connections.

 (c)
 Any reconnected bleed-air duct connections.

 (3)
 Do the operational test of the cabin recirculation fans 14HG and 15HG (Ref. TASK 21-21-00-710-001).

 (4)
 Do the operational test of the AFT cargo-compartment heating system (Ref. TASK 21-43-00-710-003).

 (5)
 Do the operational test of the cockpit and cabin temperature control (Ref. TASK 21-63-00-710-004).

 (6) Stop the pre-conditioning (Ref. TASK 12-33-21-618-001) or (Ref. TASK 12-33-21-618-001). ________
5. Close-up
 Subtask 21-00-00-410-051
 A. Close access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Install the access panels 191BB, 192FB, 191KB and 192KB (Ref. TASK 53-35-13-400-002).

 (3) Remove the warning notice(s). Subtask 21-00-00-862-051
 B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
 1EFF : ALL 1 21-00-00Page 265 1 1 Aug 01/05R 1 1 1CES 1

 TASK 21-00-00-615-003
 Decontamination of the Environmental Control System (ECS) when the Temperature is below 24 deg.C (Engine/s)
 WARNING : MAKE SURE THAT THERE IS A GOOD FLOW OF AIR THROUGH THE WORK AREA WHEN
_______ YOU USE SPECIAL MATERIALS. IF YOU GET ONE OF THESE MATERIALS ON YOUR SKIN, IN YOUR MOUTH OR IN YOUR EYES : -FLUSH IT AWAY WITH A FLOW OF CLEAN WATER FOR BETWEEN 10 AND 15 MINUTES. -GET IMMEDIATE MEDICAL AID IF IRRITATION OCCURS. DO NOT BREATHE THE FUMES FROM THE MATERIAL. DO NOT SMOKE WHEN YOU USE THE MATERIAL. DO NOT USE THE MATERIAL NEAR A FLAME, SPARKS OR SOURCES OF HEAT. THESE MATERIALS ARE DANGEROUS : THEY ARE POISONOUS, FLAMMABLE AND SKIN IRRITANTS.
 1. Reason for the Job
__________________
 To decontaminate the ECS if oil has gone into it from one or both engines.
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific lint-free cloth No specific Special blanking caps - locally manufactured - see
 Job Set-up No specific Warm air blower (commercial hair dryer)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 11-001K  USA AMS 1526 EXT.CLEANING CONCENTRATE (Ref. 20-31-00)
 Material No. 11-002  USA MIL-PRF-680 DRY CLEANING SOLVENT (VARSOL/WHITE SPIRIT) (Ref. 20-31-00)
 1EFF : ALL 1 21-00-00Page 266 1 1 Aug 01/05R 1 1 1CES 1

 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-33-21-618-001  Pre-conditioning through the LP Ground Connection
 12-33-21-618-001  Pre-conditioning through the HP Ground Connection
 12-33-21-618-001  Pre-conditioning with the APU
 21-00-00-100-001  Cleaning of Special Components in the Environmental
 Control System (ECS)
 21-00-00-615-004  Decontamination of the Environmental Control System
 (ECS) when the Temperature is above 24 deg.C
 (Engine/s)
 21-21-00-710-001  Operational Test of the Cabin Recirculation Fans 14HG
 and 15HG.
 21-21-41-000-001  Removal of the Recirculation Filter 4012HM (4013HM)
 21-21-41-400-001  Installation of the Recirculation Filter 4012HM
 (4013HM)
 21-21-51-000-001  Removal of the Cabin Recirculation Fans 15HG and 14HG
 21-21-51-400-001  Installation of the Cabin Recirculation Fans 15HG and
 14HG
 21-43-00-710-003  Operational Test of the AFT Cargo Compartment Heating
 System
 21-43-51-000-001  Removal of the Aft Cargo-Trim Air-Valve (12HC)
 21-43-51-400-001  Installation of the Aft Cargo-Trim Air-Valve (12HC)
 21-43-52-000-001  Removal of the Pressure Regulating Valve - Aft
 Cargo-Compartment Heating
 21-43-52-400-001  Installation of the Pressure Regulating Valve - Aft
 Cargo-Compartment Heating
 21-51-41-000-001  Removal of the Ozone Filter (Converter) 100HM (101HM)
　
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