Subtask 26-17-15-420-050
 A. Installation of the Lavatory Smoke Detector CAUTION : MAKE SURE THAT THE AIR EXTRACTION GRILL, THE SMOKE DETECTOR AND
_______ THE AIR EXTRACTION DUCT ARE IN LINE WITH THE EXTRACTOR AIRFLOW. INCORRECT INSTALLATION CAN CAUSE MALFUNCTION OF THE SMOKE DETECTOR.
 (1)
 Make sure that the packing (11) is in the correct conndition.

 (2)
 Carefully install the packing (11) with the smoke detector (10) to the air-extraction hood (3).

 (3)
 Install the screws (9), the washers (8,5), the lanyards (6) and the nuts (4).

 (4)
 Make sure that the seal (13) on the air-extraction pipe (14) is in the correct conndition.

 (5)
 Remove the blanking caps from the electrical connectors.

 Smoke Detector 1WQ
 Figure 401/TASK 26-17-15-991-001

R 1EFF : 001-003, 051-052, 1 26-17-15Page 408 1 1 May 01/05 1 1 1CES 1

 Smoke Detector 1WQ
 Figure 401A/TASK 26-17-15-991-001-A

R 1EFF : 004-049, 053-099, 101-149, 151-199, 1 26-17-15Page 409 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1

 (6)
 Make sure that the electrical connectors are clean and in the correct condition.

 (7)
 Connect the electrical connector 1WQ-A (7) to the smoke detector (10).

 (8)
 Carefully put the air extraction-hood (3) together with the smoke detector (10) in position on the ceiling panel (12) and install the screws (1).

R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 26-17-15-420-050-A
 A. Installation of the Lavatory Smoke Detector
 (1)
 Make sure that the packing (6) is in the correct condition.

 (2)
 Carefully install the packing (6) with the smoke detector (5) to the air-extraction hood (8).

 (3)
 Install the screws (9), the washers (3) and the nuts (2).

 (4)
 Remove the blanking caps from the electrical connectors.

 (5)
 Make sure that the electrical connectors are clean and in the correct condition.

 (6)
 Connect the electrical connector 1WQ-A (4) to the smoke detector (5).

 (7)
 Carefully put the air extraction-hood (8) together with the smoke detector (5) in position on the ceiling panel (1) and install the screws (7).

 **ON A/C ALL
 Subtask 26-17-15-865-082
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 11WQ, 12WQ, 153RH, 162RH.

 Subtask 26-17-15-710-050-A

 C. Test of the Lavatory Smoke Detector
 (1) Do the operational test of the lavatory smoke-detection system (Ref. TASK 26-17-00-710-001).
 5. Close-up
________
 **ON A/C 001-003, 051-052,

 Subtask 26-17-15-410-050
 A. Close Access
 (1) Carefully push the air-extraction grill (2) into the air-extraction hood (3).

R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 26-17-15-410-050-A
 A. Close Access
 (1)
 Put the grill (13) and the filter (12) into the air-extration hood (8).

 (2)
 Install the air-extraction grill (10) on the air-extraction hood (8).

 (3) Install the screws (11) on the air-extraction grill (10).
 **ON A/C ALL

 Subtask 26-17-15-862-054
 B. Aircraft Initial Configuration
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002)

R **ON A/C 001-003, 051-052,

 TASK 26-17-15-000-002 Removal of the Lavatory Smoke Detector 4WQ
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
 No specific blanking plugs
 No specific circuit breaker(s) safety clip(s)
 No specific stepladder 1.0 m (3 ft. 3 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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