Skip to Main Content
FlightPushFLIGHTPUSH
Part 121

Learn

Dashboard My Courses Mastery Map Practice Flight Bag

Resources

CFR & AIM FAA Orders Handbooks & Guides Certification Standards Pilot/Controller Glossary Advisory Circulars Legal Interpretations
Safety Center
Articles Trust Center
Help Center FAQ Status
  1. Reference Library
  2. CFR & AIM
  3. CFR
  4. Part 121
  5. § 121.435
Loading
flightpush.co home
Loading reference

14 CFR · Part 121

14 CFR § 121.435

Pilots: Operations Familiarization.

← Previous SectionNext Section →
Read in Subpart O
Part 121 Contents
  • Subpart A: General
  • Subpart E: Approval of Routes: Domestic and Flag Operations
  • Subpart F: Approval of Areas and Routes for Supplemental Operations
  • Subpart G: Manual Requirements
  • Subpart H: Aircraft Requirements
  • Subpart I: Airplane Performance Operating Limitations
  • Subpart J: Special Airworthiness Requirements
  • Subpart K: Instrument and Equipment Requirements
  • Subpart L: Maintenance, Preventive Maintenance, and Alterations
  • Subpart M: Airman and Crewmember Requirements
  • Subpart N: Training Program
  • Subpart O: Crewmember Qualifications
  • Subpart P: Aircraft Dispatcher Qualifications and Duty Time
  • Subpart Q: Flight Time Limitations and Rest Requirements: Domestic Operations
  • Subpart R: Flight Time Limitations: Flag Operations
  • Subpart S: Flight Time Limitations: Supplemental Operations
  • Subpart T: Flight Operations
  • Subpart U: Dispatching and Flight Release Rules
  • Subpart V: Records and Reports
  • Subpart W: Crewmember Certificate: International
  • Subpart X: Emergency Medical Equipment and Training
  • Subpart Y: Advanced Qualification Program
  • Subpart Z: Hazardous Materials Training Program
  • Subpart AA: Continued Airworthiness and Safety Improvements
  • Subpart DD: Special Federal Aviation Regulations
  • Appendix A to Part 121: First Aid Kits and Emergency Medical Kits
  • Appendix B to Part 121: Airplane Flight Recorder Specification
  • Appendix C to Part 121: C-46 Nontransport Category Airplanes
  • Appendix D to Part 121: Criteria for Demonstration of Emergency Evacuation Procedures Under § 121.291
  • Appendix E to Part 121: Flight Training Requirements
  • Appendix F to Part 121: Proficiency Check Requirements
  • Appendix G to Part 121: Doppler Radar and Inertial Navigation System (INS): Request for Evaluation; Equipment and Equipment Installation; Training Program; Equipment Accuracy and Reliability; Evaluation Program
  • Appendix H to Part 121: Advanced Simulation
  • Appendix K to Part 121: Performance Requirements for Certain Turbopropeller Powered Airplanes
  • Appendix L to Part 121: Type Certification Regulations Made Previously Effective
  • Appendix M to Part 121: Airplane Flight Recorder Specifications
  • Appendix O to Part 121: Hazardous Materials Training Requirements For Certificate Holders
  • Appendix P to Part 121: Requirements for ETOPS and Polar Operations
(a)

Applicability. The operations familiarization requirements in paragraph (b) of this section apply to all persons newly hired by the certificate holder to serve as a pilot in part 121 operations and who began the certificate holder's basic indoctrination ground training on or after April 27, 2022. The requirements in paragraph (b) of this section also apply to all certificate holders required to comply with this subpart, except for those certificate holders operating under part 135 of this chapter that have been authorized to comply with this subpart instead of the requirements of part 135, subparts E, G, and H, pursuant to § 135.3(c), and those fractional ownership program managers operating under part 91, subpart K, of this chapter that have been authorized to comply with this subpart instead of §§ 91.1065 through 91.1107, pursuant to § 91.1063(b) of this chapter.

(b)

Operations familiarization requirements. (1) No certificate holder may use, and no person may serve as, a pilot in operations under this part unless that person has completed the operations familiarization required by this paragraph (b). Operations familiarization may be completed during or after basic indoctrination training, but must be completed before the pilot begins operating experience under § 121.434.

(2)

Operations familiarization must include at least two operating cycles conducted by the certificate holder in accordance with the operating rules of this part.

(3)

All pilots completing operations familiarization must occupy the observer seat on the flight deck and have access to and use an operational headset.

(c)

Deviation. (1) A certificate holder who operates an aircraft that does not have an observer seat on the flight deck may submit a request to the Administrator for approval of a deviation from the requirements of paragraphs (a) and (b) of this section.

(2)

A request for deviation from any of the requirements in paragraphs (a) and (b) of this section must include the following information:

(i)

The total number and types of aircraft operated by the certificate holder in operations under this part that do not have an observer seat on the flight deck;

(ii)

The total number and types of aircraft operated by the certificate holder in operations under this part that do have an observer seat on the flight deck; and

(iii)

Alternative methods for achieving the objectives of this section.

(3)

A certificate holder may request an extension of a deviation issued under this section.

(4)

Deviations or extensions to deviations will be issued for a period not to exceed 12 months.

Referenced By

Interpretations of This Section (1)

  • Lamb, 2016

Documents that cite this section, found in their catalog metadata or text. Listed by date, not by significance.

Regulations Referenced

14 CFR Part 12114 CFR Part 13514 CFR 135.314 CFR Part 9114 CFR 91.106514 CFR 91.110714 CFR 91.106314 CFR 121.434

Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.

Primary Source

  • Official Source (14 CFR · Part 121)