(Ref. Fig. 401/TASK 33-51-16-991-001) R **ON A/C 151-199, 401-499,
 (Ref. Fig. 401A/TASK 33-51-16-991-001-A)

 Emergency Exit Sign
 Figure 401/TASK 33-51-16-991-001

R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 33-51-16Page 404 1303-399, 1May 01/05 1 1 1CES 1

 Emergency Exit Sign Figure 401A/TASK 33-51-16-991-001-A
R 1EFF : 151-199, 401-499, 1 33-51-16Page 405 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 301-302,

 (Ref. Fig. 401B/TASK 33-51-16-991-001-B) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 33-51-16-020-050
 A. Removal of the Emergency Exit Sign
 (1)
 Remove the emergency exit sign-lens (2).

 (2)
 Remove the screws (3) and the washers (4).

 (3)
 Remove the emergency exit sign (1) sufficiently to get access to the electrical connectors (5).

 (4)
 Disconnect the electrical connectors (5).

 (5)
 Put blanking caps on the disconnected electrical connectors.

 (6) Remove the emergency exit sign (1).
 **ON A/C 301-399,

 Subtask 33-51-16-020-050-A
 A. Removal of the Emergency Exit Sign
 (1)
 Remove the lenses (1), (6) from the housings (4), (9).

 (2)
 Remove the screws (2), (7) and the washers (3), (8).

 (3)
 Disconnect the electrical connectors (5), (10).

 (4)
 Put blanking caps on the disconnected electrical connectors.

 (5)
 Remove the housings (4), (9).

 Emergency Exit Sign
 Figure 401B/TASK 33-51-16-991-001-B 
R 1EFF :  301-302,  1  33-51-16 Page 407 
1  1  May 01/05
 1  1
 1CES  1

 **ON A/C ALL

 TASK 33-51-16-400-001
 Installation of the Emergency Exit Sign

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
 **ON A/C 001-049, 051-099, 101-149, 201-299, 303-399,
 33-51-16-991-001 Fig. 401 R **ON A/C 151-199, 401-499,
 33-51-16-991-001-A Fig. 401A
 **ON A/C 301-302,

 33-51-16-991-001-B Fig. 401B **ON A/C ALL

 3. Job Set-up
__________
 Subtask 33-51-16-865-051

 A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU LIGHTING/EMER LT/CABIN 2WL H06 49VU LIGHTING/EMER LT/CABIN 1WL H05
 Subtask 33-51-16-860-053
 B. Aircraft Maintenance Configuration
 (1)
 On the overhead panel 25VU, make sure that the EMER EXIT LT switch 4WL is in the OFF position.

 (2)
 On the overhead panel 25VU, make sure that the NO SMOKING switch 190RH is in the OFF position.

 (3)
 On the Forward Attendant Panel (FAP) 120RH, make sure that the LIGHT EMER pushbutton switch and its integral light are off.

 (4)
 Make sure that the stepladder is in the correct position.

 4. Procedure
_________
 **ON A/C 001-049, 051-099, 101-149, 201-299, 303-399,

 (Ref. Fig. 401/TASK 33-51-16-991-001) R **ON A/C 151-199, 401-499,
 (Ref. Fig. 401A/TASK 33-51-16-991-001-A)
 **ON A/C 301-302,

 (Ref. Fig. 401B/TASK 33-51-16-991-001-B) **ON A/C ALL

 Subtask 33-51-16-910-056
 A. Preparation for Installation
 (1)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 (2)
 Clean the component interface and/or the adjacent area.

 (3) Do an inspection of the component interface and/or the adjacent area. R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 33-51-16-420-050
 B. Installation of the Emergency Exit Sign
 (1)
 Remove the blanking caps from the electrical connectors.

 (2)
　
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