(2)
 Open the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).

 (3)
 Set the LIGHT control switch 11LJ to the on position.

 (4)
 Open the access door 314AR.

 4. Procedure
_________ R **ON A/C 001-003, 052-099, 401-499,
 (Ref. Fig. 401/TASK 49-16-42-991-001)  **ON A/C 051-051,

 (Ref. Fig. 401A/TASK 49-16-42-991-001-A)
 **ON A/C 051-051,
 Post SB 49-1050 For A/C 051-051,

 (Ref. Fig. 401B/TASK 49-16-42-991-001-B) R **ON A/C 001-003, 052-099, 401-499,
 Subtask 49-16-42-020-052
 A. Removal of the Air Inlet Duct
 (1)
 Remove the air intake flap (Ref. TASK 49-16-43-000-001).

 (2)
 Remove the air intake nose (Ref. TASK 49-16-44-000-001).

 (3)
 Remove the screws (25) and the nuts (31), the washers (30) and the screws (28).

 (4)
 Remove the seal assembly from the air inlet duct (1).

 (5)
 Remove the nuts (6), the washers (11) (15), the distance washers (32) and the bolts (10).

 (6)
 Remove the frame (12) and the seal (13) from the flange (14).

 (7)
 Remove the bolts (24), the washers (23) and the screws (28).

 (8)
 Remove the screws (26) and the screws (27).

 (9)
 Remove the bolts (18) and the washers (19) from the anchor nuts.

 (10)
 Remove the top flange (20) and the bottom flange (29) from the air inlet duct (1).

 (11)
 Hold the air inlet duct (1) and remove the bolts (6), (5) and (3) and the washers (4) and (2).

 (12)
 Remove the air inlet duct (1).

 Air Inlet Duct Figure 401/TASK 49-16-42-991-001- 12 (SHEET 1)

R EFF : 001-003, 052-099, 401-499, 49-16-42Page 404 Config-1 Aug 01/05
 CES

 Air Inlet Duct Figure 401/TASK 49-16-42-991-001- 22 (SHEET 2)

R EFF : 001-003, 052-099, 401-499, 49-16-42Page 405 Config-1 Aug 01/05
 CES

 Air Inlet Duct
 Figure 401A/TASK 49-16-42-991-001-A

 CES

 INTENTIONALLY BLANK

 Air Inlet Duct
 Figure 401B/TASK 49-16-42-991-001-B12 (SHEET 1)

 CES

 Air Inlet Duct
 Figure 401B/TASK 49-16-42-991-001-B22 (SHEET 2)

 CES  **ON A/C 051-051,

 Subtask 49-16-42-020-052-A
 A. Removal of the Air Intake Duct
 (1)
 Remove the air intake flap (Ref. TASK 49-16-43-000-001).

 (2)
 Remove the air intake nose (Ref. TASK 49-16-44-000-001).

 (3)
 Remove the screws (2) and the seal assembly from the air inlet duct (1).

 (4)
 Remove the nuts (10), the washers (11), the distance washers (16) and the bolts (13).

 (5)
 Remove the brackets (12) and the flexible seal (14) from the flange (15).

 (6)
 Remove the bolts (9), the washers (8) and the screws (19).

 (7)
 Remove the bolts (4) and the washers (3).

 (8)
 Remove the bolts (7) and the washers (6) from the anchor nuts (5).

 (9)
 Remove the top flange (17) and the bottom flange (18) from the air intake duct (1).

 (10)
 Hold the air intake duct (1) and remove the bolts (21) and (22) and the washers (20) and (23).

 (11)
 Remove the air intake duct (1). **ON A/C 051-051, Post SB 49-1050 For A/C 051-051, Subtask 49-16-42-020-052-B

 A.
 Removal of the Air Inlet Duct

 (1)
 Remove the air intake flap (Ref. TASK 49-16-43-000-001).

 (2)
 Remove the air intake nose (Ref. TASK 49-16-44-000-001).

 (3)
 Remove the screws (25) and the nuts (31), the washers (30) and the
 screws (28).

 (4)
 Remove the seal assembly from the air inlet duct (1).

 (5)
 Remove the nuts (6), the washers (11) (15), the distance washers (32) and the bolts (10).

 (6)
 Remove the shims (17), the frame (12) and the seal (13) from the
 flange (14).

 (7)
 Remove the bolts (24), the washers (23) and the screws (28).

 (8)
 Remove the screws (26) and the screws (27).

 (9)
 Remove the bolts (18) and the washers (19) from the anchor nuts.

 (10)
 Remove the top flange (20) and the bottom flange (29) from the air inlet duct (1).

 (11)
 Hold the air inlet duct (1) and remove the bolts (6), (5) and (3) and the washers (4) and (2).
　
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