S 377-008
(3)
Apply the aluminized primer to the surfaces of the passenger seat tracks and main deck floor tracks.
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747-400
MAINTENANCE MANUAL
SEAT TRACK
IN THESE AREAS
Seat Track Painting
Figure 701
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747-400 MAINTENANCE MANUAL
FUSELAGE ATTACH FITTINGS - DESCRIPTION AND OPERATION
____________________________________________________
1. General_______
A. Fuselage attach fittings are primary or secondary structure, depending on their function. Locations vary from the nose radome attachments at the forward bulkhead to the APU mounts in section 48.
2. Attach Fittings_______________
A. Hinge fittings and eyebolt latch fittings, for the nose radome are attached to the station 134 bulkhead.
B. Latch fittings and stop fittings are provided for each of the external electrical/electronic equipment access doors, plus hinge fittings at the aft door location.
C. Hinge fittings, guide plates, stop fittings, and latches are attached to the structure surrounding each entry door, plus the body torque tube attachments and the emergency opening mechanism.
D. Hinges (piano type), hook pin fittings, latch pin fittings, centering guide fittings and actuator fittings attach to the structure surrounding the forward and aft cargo doors.
E. The attach fittings surrounding the bulk cargo door are the hinge fittings, centering plates, stop fittings and latch fittings.
F. Fittings attach the nose gear and main gear doors and their actuators.
G. Wing-to-body splice/attach fittings combine with the four bulkheads as the prime attach fittings in that area.
H. Hinge fittings and jackscrew fittings are attachments for the horizontal stabilizer.
I. Fittings at bulkheads and between bulkheads provide attachment for the vertical fin.
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747-400 MAINTENANCE MANUAL
FUSELAGE ATTACH FITTINGS - MAINTENANCE PRACTICES
________________________________________________
1. General
_______
A. This procedure has one task. This task gives instructions for a visual inspection of the attach fittings.
B. The location and the function of the attach fittings are different.
C. The condition of the attach fittings must be satisfactory. You must remove or repair the attach fittings that are damaged or have corrosion.
TASK 53-43-00-202-001
2. Fuselage Attach Fittings-Inspection
___________________________________
A. References
(1)
51-21-03/701, Corrosion (Removal and Control)
(2)
51-24-00/001, Protective Finishes
(3)
51-24-10/801, Coating-Heat, Weather and Oil Resistant
(4)
51-24-12/701, Coating-Temporary Tec 558B
(5)
51-24-03/701, Conductive Coating System-Exterior Fiberglass
(6)
51-24-07/701, Corrosion Control-Skin and Fasteners
(7)
51-24-04/701, Finish-Abrasion Resistant Teflon
(8)
51-24-04/801, Finish-Abrasion Resistant Teflon
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