(Continued)
Reference Description Specification
B00083 Solvent - VM&P Naphthas TT-N-95 Type II, ASTM
D-3735 Type III
G00034 Cotton Wiper - Process Cleaning Absorbent
Wiper (Cheesecloth, Gauze)
BMS15-5 Class A
G00111 Sheet - Mylar
C. Location Zones
Zone Area
200 Upper Half of Fuselage
D. Prepare for the Repair of the Mylar Water Barrier
SUBTASK 53-21-11-410-001
(1) Do this task: Passenger Cabin Floor Panel - Installation, TASK 53-21-00-400-801.
SUBTASK 53-21-11-350-002
(2) Cut strips of mylar sheet, G00111 to make a splice with the edges of the floor panel.
NOTE: The splice must make a 0.75-inch (19 mm) overlap with the fastener line and adjacent
floor panel 3/4 inch (19 mm).
SUBTASK 53-21-11-140-001
(3) Clean the mating surfaces with solvent, B00083.
SUBTASK 53-21-11-350-003
(4) Mix 100 parts by weight of the adhesive, A00156 Pro-Seal 501 with 30 parts by weight of the
Pro-Seal 501-A accelerator. Mix for approximately 5 minutes with a spatula or an equivalent
tool. If you mix the adhesive in the original can, cut off the rim of the can to make it easier.
NOTE: Apply the adhesive as soon as it is possible. The heat of the material in a container
decreases the work life. The Work life is 20 minutes at 77°F (25°C). Use 50 (±5) grams
for each square foot of the surface that you cover.
E. Repair Procedure
SUBTASK 53-21-11-390-002
(1) Apply a layer of adhesive to the mating surface of the splice.
SUBTASK 53-21-11-390-003
(2) Bond the splice to the water barrier.
SUBTASK 53-21-11-140-002
(3) Remove the unwanted adhesive with a clean cotton wiper, G00034 moist with solvent,
B00083.
SUBTASK 53-21-11-350-004
(4) Put a weight or tape on the edges that show signs of delamination until the adhesive dries.
SUBTASK 53-21-11-860-001
(5) Let the adhesive dry for a minimum of 2 hours.
NOTE: A minimum of 12 hours is necessary for the adhesive to fully dry.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-21-11
Page 802
D633A101-ILF Oct 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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