A commercial pilot applicant's forum post lays out one of the most persistently confusing regulatory distinctions in Part 91/119/135 operations: the difference between common and private carriage, how operational control determines which regulatory framework applies, and how wet versus dry leasing arrangements interact (or don't) with carriage classification. The poster correctly identifies that a popular study-guide shortcut — "dry lease equals private carriage, wet lease equals common carriage" — is an oversimplification that does not hold up under FAA scrutiny. Carriage classification hinges on holding out to the public and the nature of operational control, not on whether the aircraft is leased with or without crew. A dry lease (aircraft only, lessee supplies crew) can still result in common carriage if the lessee holds itself out to transport persons or property for compensation to the general public. Conversely, a wet lease (aircraft plus crew) does not automatically create common carriage; if the arrangement is a single, non-advertised contract with one customer and does not constitute "holding out," it can still be structured as private carriage, though wet leases in practice almost always trigger the operational control question that the FAA scrutinizes closely under Part 119.
The operational control question the poster raises — who decides where to go, when to fly, and who pays, versus who as PIC makes the go/no-go, weather, and route decisions — is exactly the analysis the FAA applies in real enforcement and legal interpretation letters. The FAA's Chief Counsel opinions and the operational control provisions in 14 CFR 1.1 and Part 119 make clear that operational control is defined as the exercise of authority over initiating, conducting, or terminating a flight. A pilot's statutory authority as PIC to make final safety-of-flight decisions (per 91.3) does not, by itself, confer operational control in the regulatory sense used to determine who needs a 119/135 certificate. If the company is dictating the commercial parameters of the flight — schedule, passengers, destination, compensation — and the pilot/aircraft owner is essentially selling transportation services to that company, the FAA will often find the arrangement functions as common carriage requiring a 135 certificate, regardless of how the contract is papered. This is precisely why the FAA has cracked down over the years on "sham dry leases" and disguised charter operations, particularly in the fractional and on-demand charter space, where owner-pilots or small operators attempt to structure single-client arrangements to avoid 135 certification while functionally running an air taxi.
For working pilots and operators, this distinction is not academic. It sits at the center of ongoing FAA enforcement actions against illegal charter operations, a topic that has drawn significant industry and regulatory attention in the business aviation sector over the past several years. Part 91 owner-pilots who fly for a single company under a long-term contract, as the poster describes, sit in a genuine gray zone that the FAA evaluates case by case, weighing factors like exclusivity, advertising, compensation structure, and who bears economic risk. The poster's third question — whether an individual commercial pilot flying under multiple contracts while providing the aircraft would need their own 119/135 certificate — is also accurate as a practical matter. The FAA does not care about the size of the operation; if the activity meets the legal definition of common carriage (holding out plus compensation), the operator, even a single pilot-owner, is required to hold the appropriate certificate. This has real consequences: operating without one exposes both the pilot and any client to certificate action, civil penalties, and insurance/liability exposure if an accident occurs, since the aircraft would technically be operating outside its certificated authority.
Broadly, this thread reflects a recurring theme in aviation training and industry practice: regulatory literacy around operational control and carriage classification is often taught via oversimplified mnemonics that don't survive contact with real FAA interpretation. This matters increasingly as the on-demand charter, fractional ownership, and owner-operator markets grow, and as DPEs and examiners place more emphasis on applicants understanding the FAA's substance-over-form approach rather than memorized rules of thumb. Pilots transitioning from Part 91 flying into commercial arrangements — whether corporate flight departments considering timeshare or interchange agreements, or independent pilots contracting their services with owned aircraft — should treat this area as one requiring actual legal review, not textbook shortcuts, given how aggressively the FAA and NTSB have pursued illegal charter cases in recent years.