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LAVATORIES - DESCRIPTION AND OPERATION
1.  General
A.  Lavatory compartment are located in the passenger cabin as shown in Fig. 1.
B.  Lavatory equipment covered in this section consists of: the dispenser assembly; the toilet back shroud; the sink cabinet assembly; the lavatory partitions (walls); lavatory door and header; the sidewall and ceiling lining panels; and the floor covering.
C.  The lavatory toilet units, washbasins and associated equipment and plumbing are covered in Chapter 38, Water and Waste.
2.  Sink Cabinet Assembly (Fig. 1)
A.  The sink cabinet assembly contains the washbasin and water system plumbing, a waste disposal chute, a call panel, and dispenser compartments for soap, toilet seat covers, sanitary napkins, air sickness bags and toilet tissue. For the forward lavatory only, the sink cabinet also contains dispenser compartments for cleaning tissue, paper towels, and paper cups.
B.  The call panel contains a razor blade disposal, an illuminated RETURN TO SEAT sign, and an attendant call switch.
3.  Dispenser Panel (Fig. 1).
A.  In the aft lavatory, a dispenser panel located above the washbasin contains the dispenser compartments for paper towels, cleaning tissues, and paper cups.
4.  Toilet Back Shroud (Fig. 1)
A.  The toilet back shroud, located above the toilet, houses the toilet flush switch and toilet timer.
5.  Forward Lavatory Partitions
A. The forward lavatory partition, as covered in this section, consists of the aft lavatory wall.
6.  Aft Lavatory Partitions
A.  The aft lavatory partitions, as covered in this section, consist of the forward transverse partition and the inboard longitudinal partition.
7.  Door and Header
A.  The lavatory door is hinge-attached to the lavatory partition or adjacent partition to allow outward opening of the door. The door header is attached to each doorway partition.
8.  Ceiling Panel
A.  Each lavatory has a ceiling panel to enclose the overhead lavatory envelope void. A service unit, dome light and passenger address speaker is installed in each ceiling panel.
9.  Sidewall Panel
A.  The lavatory sidewall panel is contoured and shaped to enclose the side and/or aft area of the lavatory.
10. Floor Covering
A.  The lavatory floor covering consists of a floor pan under the toilet and sink cabinet, and vinyl sheet floor covering.
11. Miscellaneous Equipment
A.  Each lavatory contains a passenger service unit (Ref 25-23-0 D&O).
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 Lavatory Compartment  5C8 
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B.  A service panel is mounted on each dispenser cabinet. On the service panel is the razor blade disposal, an illuminated RETURN TO SEAT sign, an attendant call switch, and electrical razor outlets.
C.  An electrical junction box is mounted in each lavatory behind the service panel in the dispenser cabinet. A terminal strip in the junction box furnishes the power connection from the airplane electrical system to the razor outlets, attendant call switch, and the RETURN TO SEAT sign. Components housed in the junction box are used for supplying and controlling power to the electrical razor supply.
D.  Other miscellaneous equipment includes the mirror, a coat hook, an assist handle and an ash tray.
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LAVATORIES - INSPECTION/CHECK
1.  General
A.  The inspection/check procedures in this section are typical for all lavatories installed in the airplane.
2.  Lavatory Waste Compartment Inspection
A.  Check all lavatory paper and linen waste receptacle enclosure access doors and disposal doors for damage and deformation and for proper operation, fit, sealing and latching.
NOTE:  Properly fitting doors restrict movement of air into cabinets or receptacles, thereby assisting in the containment of any possible trash fires.
B.  Check wiring, terminal boxes, switches and water heaters for evidence of overheat, loose terminals, and corrosion.
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