WARNING
DO NOT GET THE CORROSION-INHIBITING COMPOUND ON YOUR
SKIN, IN YOUR EYES, OR ON YOUR CLOTHES. THE COMPOUND
IS POISONOUS AND FLAMMABLE. USE APPROVED GLOVES, AND
EYE PROTECTION. MAKE SURE THAT THERE IS GOOD AIRFLOW
IN THE WORK AREA. KEEP THE COMPOUND AWAY FROM SPARKS
AND FLAMES. THE COMPOUND CAN CAUSE INJURIES TO
PERSONNEL AND DAMAGE TO EQUIPMENT.
1) Apply corrosion inhibiting compound, G00009, to the top surfaces.
ILF 500, 686, 837, 968-971 PRE SB 737-53-1285
SUBTASK 53-21-00-400-003
(3) Apply Hi-Tak TufSeal Tape, G50738 (preferred), or GUA1057-1, GUA1059-1, GUA1057-144
tape, G02424 (alternate), on the floor support structure.
(a) Splices between strips of Hi-Tak TufSeal Tape, G50738 (preferred), or the GUA1057-1,
GUA1059-1, GUA1057-144 tape, G02424 (alternate), must overlap by 1 in. (25 mm).
NOTE: A minimum of 20 psi (138 kPa) pressure is needed to make a waterproof joint on
the tape splices.
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 402, 405, 406, 409,
410, 412, 416, 424, 425, 427-429, 451, 452, 491-499, 501-504, 507-510, 512-516, 518-520, 523-528,
530-533, 535-537, 541, 542, 552-557, 559-564, 567-569, 571-577, 581, 583, 585, 588-590, 592-599,
601-603, 606, 607, 610-615, 620, 625-627, 671, 672, 691-699, 703, 707-710, 803-813, 821, 822,
831-836, 838, 841, 842, 851, 852, 854-858, 861-863, 871-874, 947, 948, 972, 973, 980-999; ILF 500,
686, 837, 968-971 POST SB 737-53-1285
SUBTASK 53-21-00-390-003
(4) Before you install the floor panels in the wet area, examine the condition of the Hi-Tak TufSeal
Tape, G50738, on the floor structure and the GUA1057-1, GUA1059-1, GUA1057-144 tape,
G02424, on the floor panels.
(5) Do these steps to replace damaged tape:
NOTE: The wet area is between STA 207 and STA 380 and between STA 887 and STA 1016.
(a) Remove the damaged tape from the panel or the floor support structure.
CAUTION
BE CAREFUL WHEN REMOVING ADHESIVES FROM PRIMARY
STRUCTURE. HARSH SCRAPING OR USE OF IMPROPER TOOLS MAY
CAUSE SCRIBE DAMAGE TO THE AIRCRAFT, WHICH CAN RESULT IN
FATIGUE CRACKING. CONTACT ENGINEERING IF NICKS, SCRATCHES,
OR SCRIBE MARKS ARE EVIDENT ON PRIMARY STRUCTURE.
(b) Clean scuff plates, floor panels and floor panel support structure with an approved plastic
scraper and solvent, B00184, or solvent, B00666, (SOPM 20-30-03).
WARNING
DO NOT GET THE CORROSION-INHIBITING COMPOUND ON YOUR
SKIN, IN YOUR EYES, OR ON YOUR CLOTHES. THE COMPOUND IS
POISONOUS AND FLAMMABLE. USE APPROVED GLOVES, AND EYE
PROTECTION. MAKE SURE THAT THERE IS GOOD AIRFLOW IN THE
WORK AREA. KEEP THE COMPOUND AWAY FROM SPARKS AND
FLAMES. THE COMPOUND CAN CAUSE INJURIES TO PERSONNEL
AND DAMAGE TO EQUIPMENT.
(c) Apply the corrosion inhibiting compound, G00009, to the floor panel support structure.
(d) Apply the Hi-Tak TufSeal Tape, G50738, on the floor support structure and crease beams.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-21-00
Page 412
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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