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color grey; 5.750 in. lg, 4.000 in. w, 3.688 in. h; one connector receptacle w/23 contacts located on back, mtd by 4 quick disconnect fasteners, face of indicator has 17 warning indicators marked as follows:aft entry, aft airstair, fwd entry, l window ovht, galley, fwd cargo, aft cargo, equip access, apu, l main gr door, nose gear door, main gr door, r window ovht, tail skid, three indicators are marked with a horizontal bar, one pushbutton marked text
aluminum alloy
paint
painted
An item located within an aircraft specifically designed to indicate, by means of lights, the components in which a malfunction has occurred. This item does not make quantitative or qualitative tests as provided by test sets.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.