-four main attachment fittings, with two diagonal support struts, installed on the forward frame FR78. These fittings connect the tail cone to the fuselage,
 -two framework fittings on the forward frame FR78. These permit the inspection of the horizontal stabilizer bearings with the tail cone installed,
 -a fail-safe fitting on the top side of the forward frame FR78. This takes the load if one of the main attachment fittings fail,
 -seven APU attachment fittings for the installation of the APU and it's related equipment,
 -hoisting points for the removal and installation of the tailcone.

 (2)
 Firewalls The APU compartment is a specified fire zone and firewalls close the compartment on all sides. The firewalls are made of titanium sheets. The firewalls have cutouts for the APU related components and equipment.

 (3)
 Service Frame The service frame is a box made of aluminum-alloy sheets. It is part of the APU air intake system. A honeycomb panel with a safety walk surface is attached to the top of it.

 EFF : ALL
53-58-00Page 1

 Tail Cone - Component Location
 Figure 001
 EFF :  ALL  53-58-00 Page 2 
Feb 01/98
 CES 

 (4)
 Maintenance and Access Doors A maintenance door (314AR) and two access doors (315AL and 316AR) are installed in the lower surface of the tailcone. They give access to the APU and its related components.

 (5)
 Over-pressure Release Door The over-pressure release door releases the pressure in the tail cone if there is a sudden increase in pressure. The door closes automatically when the pressure decreases.

 EFF : ALL
53-58-00Page 3

 TAIL CONE - REMOVAL/INSTALLATION
________________________________
 TASK 53-58-11-000-006
 Removal of the Fuselage Tail Cone
 1. Reason for the Job__________________
 Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R R R R  No specific No specific No specific No specific No specific No specific No specific No specific No specific No specific No specific No specific No specific 98A28007570000 98A53407566005 98A53907524000 98D28207510000  blanking capsblanking coversblanking plugscircuit breaker(s) safety clip(s)warning noticecontainer 10.0 l (2.6416 USgal)crane 15.0 m (49 ft. 3 in.)access platform 4.0 m (13 ft. 1 in.)container 5.0 l (1.3208 USgal) 1 CONTAINER 5 L(1 1/2 USGAL) 1 CONTAINER - STAINLESS STEEL, APPLICABLE CAPACITY 1 COVER - PLASTIC 1 CRANE HEIGHT 15 M (50 FT)1 ADAPTER - VENT AND DRAIN VALVE, APU1 EXTRACTOR - ATTACH BOLTS, TAIL CONE1 SLING - R/I TAILCONE1 SLIDE CONE - APU FUEL

 EFF : ALL
53-58-11Page 401

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
07-11-00-581-001  Lifting for Aircraft Maintenance Operations
 29-10-00-864-001  Depressurize the Green Hydraulic System
 29-10-00-864-002  Depressurize the Yellow Hydraulic System
 29-10-00-864-003  Depressurize the Blue Hydraulic System
 36-22-17-000-001  Removal of the APU Overheat Sensing-Elements
 49-16-41-000-001  Removal of the retractable APU Diverter (GTCP 36-300)
 49-16-41-000-002  Removal of the retractable APU Diverter (APS 3200)
 49-16-43-000-001  Removal of the Air Intake Flap (GTCP 36-300)
 49-16-43-000-002  Removal of the Air Intake Flap (APS 3200)
 53-58-11-991-008  Fig. 401
 53-58-11-991-009  Fig. 402 

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,

 53-58-11-991-010  Fig. 403 
R  **ON A/C 301-399, 
R  53-58-11-991-010-A  Fig. 403A 
R  **ON A/C ALL
 53-58-11-991-016 53-58-11-991-011  Fig. 404Fig. 405

 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-210, 53-58-11-991-012 Fig. 406
R  **ON A/C 106-149, 211-299, 301-399, 401-499, 53-58-11-991-012-A Fig. 406A
 EFF : ALL
53-58-11Page 402

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
**ON A/C ALL
　
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