# US aviation rules let only certificated mechanics, or people they personally supervise, do maintenance and repairs on aircraft

Page: https://flyvolo.ai/en/changes/ev-20130128-aircraft-maintenance-technician-8
Date: 2013-01-28 · Stage: Constraint
Can this record move a task judgement? yes
Occupation: https://flyvolo.ai/en/careers/aircraft-maintenance-technician

## Scope

United States. The regulation says that, except as it provides, no person may maintain, rebuild, alter or perform preventive maintenance on an aircraft or its components; that the holder of a mechanic certificate may do so as Part 65 provides; and that a person working under a certificated mechanic or repairman may do the work only if the supervisor personally observes it to the extent necessary to ensure it is done properly and is readily available in person. Last amended effective 28 January 2013. It also authorises repair stations and air carriers, which act through their staff, and says nothing about diagnostic software used to find a fault.

## Source

- Electronic Code of Federal Regulations — 14 CFR 43.3, Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations (as last amended by Amdt. 43-45, 77 FR 71096, effective January 28, 2013) — https://www.ecfr.gov/current/title-14/chapter-I/subchapter-C/part-43/section-43.3 (primary source)

## What this means

In the US, the hands that repair an aircraft must be a certificated mechanic's, or work under one's eye.

## What it does not show yet

It says who may do the work, not whether software helps find the fault.

## How to verify it yourself

Open 14 CFR 43.3 on eCFR and find "if the supervisor personally observes the work being done".


More: https://flyvolo.ai/llms.txt
