O-5 | Full Operability: All operational components of the piece function as described by the manufacturer or as found in available documentation. |
O-4 | Limited Operability: All operational components of the piece function, but there is a limited, intermittent, or sluggish condition noticeable; adjustment, cleaning, lubrication or maintenance is required to bring the piece to FULL OPERABILITY. |
O-3 | Partial Operability: One or more than one operational component of the piece do not function; replacement of parts, either mechanical or electrical, is required in order to restore operability; at least one operational component in the piece must be functioning properly to be described as PARTIAL OPERABILITY. |
O-2 | No Operability: None of the operational components of the piece function properly; might be relegated to “parts only” |
O-1 | Unknown Operability: The operation of the piece is not known; the current owner either has no way in which to test it or is unfamiliar with proper operational characteristics. |
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