(5)
 Make sure that the insulation blankets are removed as required.

 4. Procedure
_________
 Subtask 52-22-31-910-054
 A. Preparation for Installation
 (Ref. Fig. 408/TASK 52-22-31-991-005)

 (1) Remove the old sealant from the door frame and the support-arm hinge fittings (73) and (77).
 NOTE : Use a wooden or plastic scraper.
____
 (2) Clean the component interface and/or the adjacent area.
 1EFF : 301-399, 1 52-22-31Page 447 1 1 May 01/04 1 1 1CES 1

 (3)
 Do an inspection of the component interface and/or the adjacent area.

 (4)
 Apply a layer of SEALANTS (Material No. 09-016) to the mating surface of the bolts (74) and (78) and the nuts (71) and (75).

 Subtask 52-22-31-420-054
 B. Installation of the Upper and Lower Support-Arm Hinge Fittings
 (Ref. Fig. 408/TASK 52-22-31-991-005)

 (1)
 Install the upper support-arm hinge fitting (77) as follows:

 (a)
 Put the hinge fitting (77) andh the shim (76) in position at the door frame.

 (b)
 Install the bolts (78) and the nuts (75).

 (2)
 Apply SEALANTS (Material No. 09-005) around the upper support arm fitting (84) and the lower support arm

 (3)
 Install the lower support-arm hinge fitting (73) as follows:

 (a)
 Put the hinge fitting (73) andh the shim (72) in position at the door frame.

 (b)
 Install the bolts (74) and the nuts (71).

 (4)
 Apply SEALANTS (Material No. 09-005) around the upper and lower hinge fittings (73) and (74).

 (5)
 Install the support arm (Ref. TASK 52-22-12-400-001).

 5. Close-up
________ Subtask 52-22-31-410-054
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Put the removed insulation blankets on the door frame and attach the with the VELCRO-tapes.

 (3)
 Install the door frame lining as required (Ref. TASK 25-23-47-000-004), (Ref. TASK 25-23-47-000-009) or (Ref. TASK 25-23-47-000-010).

 1EFF : 301-399, 1 52-22-31Page 448 1 1 May 01/04 1 1 1CES 1

 (4)
 Do the special precaution for the door damper and emergency operation

 cylinder (Ref. TASK 52-22-00-860-004).

 (5)
 Close the applicable door (Ref. TASK 52-22-00-410-001).

 (6)
 Remove the access platform(s).

 1EFF : 301-399, 1 52-22-31Page 449 1 1 May 01/04 1 1 1CES 1 CARGO - DESCRIPTION AND OPERATION

_________________________________
 1. General
_______
 **ON A/C 001-049, 051-099, 101-149, 221-221, 224-224, 228-228,
 There are three cargo compartment doors on the right side of the lower fuselage. They are referred to as FWD, AFT and BULK cargo-compartment doors and give access to the related cargo compartment.
 The FWD and AFT cargo-compartment doors are equivalent but they are not interchangeable because of different electrical pin connections of the door plug . If it is necessary to replace the AFT cargo compartment door with the FWD cargo compartment door (or vice versa), the pin connections of the applicable door plug must be changed to agree with the related door position.
 The FWD and AFT cargo compartment doors have a manual locking mechanism and open hydraulically away from the aircraft. It is only possible to open or close the FWD and AFT cargo-compartment doors from the outer side.
 The BULK cargo-compartment door also has a manual locking mechanism. It opens manually into the BULK cargo compartment and up. It is possible to open or close it from both inner and outer sides.
R **ON A/C 151-199, 401-499,
 There are two cargo compartment doors on the right side of the lower fuselage. They are referred to as FWD and AFT cargo-compartment doors and give access to the related cargo compartment.
 The FWD and AFT cargo-compartment doors are equivalent but they are not interchangeable because of different structural design. They have a manual locking mechanism and open hydraulically away from the aircraft. It is only possible to open or close the FWD and AFT cargo-compartment doors from the outer side.
 1EFF : ALL 1 52-30-00Page 1 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 201-220, 222-223, 225-227, 229-299, 301-399,

 There are two cargo compartment doors on the right side of the lower fuselage. They are referred to as FWD and AFT cargo-compartment doors and give access to the related cargo compartment.
 The FWD and AFT cargo-compartment doors are equivalent but they are not interchangeable because of different electrical pin connections of the door plug . If it is necessary to replace the AFT cargo compartment door with the FWD cargo compartment door (or vice versa), the pin connections of the applicable door plug must be changed to agree with the related door position.
　
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