FAR 91.1041 — Proving and Validation Tests
FAR 91.1041 sets proving and validation test rules for fractional ownership program managers, including 25-hour minimums, night, IFR, and en route requirements.
FAR 91.1041 governs how a fractional ownership program manager must prove and validate aircraft before placing them into service under Part 91 Subpart K.
Before operating either a two-pilot aircraft (non-turbojet) under VFR or any turbojet airplane, the program manager must complete at least 25 hours of proving tests acceptable to the Administrator. Those 25 hours must include:
- 5 hours of night flight (if night ops will be authorized)
- 5 instrument approaches under simulated or actual IMC (if IFR ops will be authorized)
- Entry into a representative number of en route airports
During proving tests, no passengers may be carried except those needed for the test or designated FAA observers, though pilot training may occur.
Validation tests are separate and confirm the manager can operate safely and in compliance. They are required when adding a new aircraft type not previously proved, conducting operations outside U.S. airspace, Class II navigation, or special performance/operational authorizations. Actual flight may be waived if competence can be shown otherwise.
Proving and validation tests may run simultaneously, and the Administrator may grant deviations for special circumstances. This rule matters operationally because it ensures both the aircraft and the program manager are vetted before carrying owners or passengers.