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Aircraft Parts Condition Codes Explained

What New, Overhauled, Serviceable, As Removed, and other part conditions mean, so you know exactly what you are buying.

When you shop for aircraft parts, the listed condition tells you how the part was last verified, what work was performed on it, and what paperwork comes with it. The aviation industry uses both descriptive terms (such as Serviceable or Overhauled) and short condition codes (such as SV or OH). This guide explains the conditions you will see on Flying411 listings and the standard codes they map to, so you can compare parts with confidence.

Condition codes at a glance

ConditionCodeWhat it means
Factory NewFNBrand new directly from the manufacturer, with full certification and warranty.
NewNEUnused and in new condition, but may not carry full manufacturer traceability or warranty.
New SurplusNSNew, never-installed stock that has been held in storage; often older but still unused inventory.
OverhauledOHFully disassembled, cleaned, inspected, repaired as needed, reassembled, and tested back to the manufacturer's new-part tolerances, with overhaul paperwork.
ServiceableSVInspected and found fit for installation, but not restored to new limits; may have less life remaining than an overhauled unit.
RepairedRPA specific defect was repaired and the part returned to a serviceable condition.
Inspected / TestedINExamined and, where applicable, bench-tested and found to meet condition criteria, without a full overhaul.
As RemovedARRemoved from an aircraft or engine in its current, untested state; no recent inspection. Often bought as a core or for overhaul.
UnserviceableUSNot currently fit for installation; must be repaired, overhauled, or inspected before return to service.

Frequently asked questions

An Overhauled part has been completely disassembled, cleaned, inspected, repaired as needed, reassembled, and tested back to the manufacturer's approved new-part tolerances, and it ships with overhaul paperwork. A Serviceable part has been inspected and found fit for installation, but it was not restored to new limits, so it may have less life remaining than an overhauled unit.

As Removed means the part was taken off an aircraft or engine and sold in its current, untested state with no recent inspection. It can be a good value when bought for overhaul or as a core, but it is not ready to install. Always confirm whether trace or removal documentation is available and budget for inspection or overhaul before use.

A Serviceable part has been inspected and determined to be fit for installation, and it normally ships with an airworthiness approval tag such as an FAA 8130-3. Final airworthiness still depends on installation by a qualified mechanic in accordance with the applicable maintenance data, so always review the accompanying paperwork.

Factory New (FN) is brand new directly from the manufacturer with full certification and warranty. New (NE) is an unused part in new condition that may not carry full manufacturer traceability or warranty. New Surplus (NS) is new, never-installed stock that has been held in storage, often older inventory that is still unused.

An FAA 8130-3 (Authorized Release Certificate) documents that a part was inspected or maintained and found to conform to approved data. For conditions such as New, Overhauled, Repaired, and Serviceable, an 8130-3 or equivalent release is the paperwork that supports the condition claim and the part's eligibility for installation.

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