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R  from liquids that can cause corrosion. Adhesive film attaches the 
R  floor covering to the floor panels. There are cut-outs for the floor 
R  attachments of the cabin furnishings. The edges and the cut-outs of 
R  the non textile floor covering are sealed with sealant. 
R  There are different procedures to close the gap between the NTF 
R  sections: 
R  - Sealing procedure 
R  - Welding procedure. 
R  (2) Utility (wet) area zone: 
R  Areas that are frequently in touch with liquids are defined as wet 
R  areas and these are: 
R  - Door entrance area with a minimum of 2 frame bays forward and aft 
R  of the door 
R  - Galley areas with a minimum of 1 frame bay forward and aft of the 
R  galley outline 
R  - Lavatory areas with a minimum of 1 frame bay forward and aft of the 
R  lavatory outline. 
R  Utility (wet) areas have a cover of Adhesive Foil (MYLAR) -full 
R  floor width in transverse direction- . 
R  (a) Seat-Track Area: 
R  Corrosion inhibitor spray is applied to the seat tracks in (wet) 
R  areas . In areas of all seat track length under the Adhesive Foil 
R  (MYLAR), the seat tracks crowns are filled fully with corrosion 
R  preventive compound. Spacer-strips are installed on the seat 
R  tracks to give protection to the corrosion preventive compound.

 EFF : ALL
25-28-00Page 4

R  (b) Floor-Panel Area: 
R  The Adhesive Foil (MYLAR) is attached to the floor panels. This 
R  is a moisture barrier and gives protection to the aircraft 
R  structure from liquids. The (MYLAR) foil has an overlap of each 
R  other by 50 mm (1.9685 in.). Adhesive film attach the NTF to the 
R  (MYLAR) foil. Adhesive double-sided tape attaches the TF to the 
R  (MYLAR) foil. 
R  (c) Joint Strips: 
R  Stainless-steel cover-strips are installed across the aisles to 
R  cover the joints between the textile and the non textile floor 
R  coverings. The attachment screws are installed with 
R  anti-corrosion paste.

 EFF : ALL
25-28-00Page 5

 COVERING - FLOOR, TEXTILE - REMOVAL/INSTALLATION________________________________________________
 TASK 25-28-41-000-001
 Removal of the Textile Floor-Covering
 1. Reason for the Job__________________
 Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  1 SCRAPER - NON METALLIC
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
RR  24-42-00-861-001 25-21-41-000-001 25-28-41-991-001  Energize the Ground Service Network from the External PowerRemoval of the Passenger Seats Fig. 401 
3. Job Set-up__________
 Subtask 25-28-41-861-050 
R  A. Aircraft Maintenance Configuration 
R  (1) Energize the ground service network (Ref. TASK 24-42-00-861-001).

 EFF : ALL
25-28-41Page 401

 Subtask 25-28-41-010-050
 B. Get Access
 (1) Remove the passenger seats as necessary.
 (Ref. TASK 25-21-41-000-001).
 4. Procedure_________
 Subtask 25-28-41-020-050 
R  A. Removal of the Textile Floor-Covering (TF) attached with 
R  Dispersion-Adhesive 
R  (Ref. Fig. 401/TASK 25-28-41-991-001) 
R  (1) Remove the screws (8) and the joint-strips (9). 
R  (2) Remove the seat-track covers (10) as necessary. 
R  (3) Remove the textile floor-covering: 
R  (a) Carefully lift a corner of the TF (7) and pull it horizontal away 
R  from the floor-panels (1). 
R  CAUTION : REMOVE THE FLOOR COVERING CAREFULLY TO AVOID DAMAGE TO_______ 
R  THE CABIN FLOOR PANELS. 
R  (b) Use a SCRAPER - NON METALLIC to make the removal procedure 
R  easier. 
R  CAUTION : DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE_______ 
　
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