FAA Flight Standards District Offices: 76 FSDOs, Their Aviation Safety Inspectors and How They Differ From Private Designees

A Flight Standards District Office (FSDO) is the local branch of the FAA's Flight Standards Service, which handles certification, inspection, surveillance, investigation and enforcement for airmen, air operators, air agencies and designees. According to the FAA's Office of General Aviation Safety Assurance, FSDOs are responsible for certification, oversight and management under 14 CFR Parts 43, 61, 65, 91, 107, 133, 135, 137, 141, 142, 145, 147 and 183. The FAA's list of reasons to contact an FSDO includes low-flying aircraft, accident reporting, aircraft maintenance, aircraft permits and airmen matters.

The FAA's "Find your FSDO" locator dataset, last updated in August 2026, contains 76 offices, from Fairbanks, Anchorage and Juneau to Honolulu and San Juan. AOPA counted 77 when it reported the 2017 reorganisation, which took effect on 20 August 2017 and replaced the regional structure of Flight Standards. The FAA's Flight Standards page lists four offices, the fourth now called the Office of Safety and Business Integration. FSDOs sit under General Aviation Safety Assurance, which manages nine functional divisions, while Part 121 airlines are handled separately by Air Carrier Safety Assurance.

An aviation safety inspector (ASI) is an FAA employee in the 1825 job series. Flight Standards specialties are operations, airworthiness maintenance and airworthiness avionics; manufacturing inspectors work for the Aircraft Certification Service. To be hired as a general aviation operations ASI, the FAA requires a flight instructor certificate with single-engine, multi-engine and instrument airplane ratings, at least 200 hours of flight instruction given, a minimum of 1,500 total flight hours and a valid second-class medical. ASIs certificate and oversee flight schools, repair stations and charter operators.

Many people acting for the FAA are designees, not employees. Under 14 CFR Part 183, designees are private individuals and organisations authorised to conduct examinations, perform tests and issue approvals and certificates on the FAA's behalf. They include Designated Pilot Examiners (checkrides, under the supervision of the local Flight Standards inspector), Designated Mechanic Examiners, Designated Airworthiness Representatives (who may charge a fee), Designated Engineering Representatives (nine designation categories) and Organization Designation Authorization holders.

Every FSDO publishes a phone number and email address, and a national line, 866-TELL-FAA, also exists. The Columbus and Portland FSDOs state that office visits are by appointment only. Inspectors are assigned by geography, not chosen by the customer. Since 2015 the FAA has operated a Compliance Program, renamed from the Compliance Philosophy in October 2018; the FAA says an unintentional deviation by a qualified, cooperative person will generally be resolved with a Compliance Action such as counselling or extra training, while intentional or reckless behaviour still draws enforcement.

The structure described here explains a good deal of day-to-day friction in general aviation. Certification and oversight are split between a relatively small corps of salaried inspectors and a much larger body of private designees authorised under Part 183. Examiners and representatives who may charge a fee do much of the hands-on work that a flight school, repair station or charter operator needs, while the inspector assigned by geography supervises the system and holds the local relationship. Operators therefore deal with two distinct kinds of FAA authority, and knowing which one is acting matters for scheduling, cost and recourse.

Because inspectors are assigned by territory rather than chosen, an operator's experience of oversight depends partly on the local office and its workload. The appointment-only access stated by some FSDOs and the existence of a national line point the same way: the first contact is usually remote and routed, and a face-to-face meeting is the exception. The Compliance Program adds a second structural feature, since an unintentional deviation by a cooperative, qualified person is generally handled through counselling or additional training, while intentional or reckless conduct still draws enforcement. For certificate holders, the practical lever is early, cooperative engagement with the assigned office.

The next dated change would be a revision of the FAA's locator dataset, which currently shows 76 offices, or a further change to the Flight Standards organisation chart, whose fourth office now carries the name Office of Safety and Business Integration.