Attachment 3
21116 Hangar Shop Space
An area in a hangar for activities such as component repair, weapons repair,
administration, and flammable storage. This category code will be used for stand-
alone facilities where the shop facility is physically separate from the remainder of the
maintenance activity, or to delineate functional areas within the maintenance hangar.
21117 Avionics Maintenance Shop, Installation
A facility for repair, storage and testing of electronic gear used in aircraft and in
aviation maintenance facilities. This category code will be used for stand-alone
facilities, at all levels except depot, where the shop is physically separate from the
remainder of the maintenance activity, or to delineate functional areas within the
maintenance hangar. Depot level avionics shops are classified using category code
21740, Avionics Maintenance Shop, Depot.
21120 Aircraft Component Maintenance Shop
A facility which provides space for engine rebuild, engine and transmission repair,
and weights and balances on rotor heads of rotary-wing aircraft. It is normally part of
the hangar shop space in category code 21110 Aircraft Maintenance Hangar. This
category code will be used for stand alone facilities, at all levels except depot, where
the shop is physically separate from the remainder of the maintenance activity, or to
delineate functional areas within the maintenance hangar.
21130 Aircraft Paint Shop
A facility which provides space for the washing, rinsing, paint stripping, corrosion
removal, chemical agent resistant coating (CARC), and painting of aircraft at
maintenance facilities. This category code will be used for stand-alone facilities
where the shop is physically separate from the remainder of the maintenance activity,
or to delineate functional areas within the maintenance hangar.
21140 Aircraft Engine Test Facility
Following engine removal from the aircraft, this enclosed facility provides space to
start and operate the aircraft engine while it is mounted on support equipment. This
aids in the diagnosis and testing operations performed during extensive engine
maintenance or rebuild. This category code will be used for stand alone facilities
where the facility is physically separate from the remainder of the maintenance
activity, or to delineate functional areas within the maintenance hangar.
21141 Aircraft Engine Test Structure
Following engine removal from the aircraft, this open-sided facility provides space to
start and operate the aircraft engine while it is mounted on support equipment. This
aids in the diagnosis and testing operations performed during extensive engine
maintenance. This category code will be used for stand-alone facilities where the
facility is physically separate from the remainder of the maintenance activity, or to
delineate functional areas within the maintenance hangar.
A3-25
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