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. Subpart DD
Loading
flightpush.co home
14 CFR Part 121
  1. Subpart A: General
  2. Subpart B—Certification Rules for Domestic and Flag Air Carriers [Reserved]
  3. Subpart C—Certification Rules for Supplemental Air Carriers and Commercial Operators [Reserved]
  4. Subpart D—Rules Governing All Certificate Holders Under This Part [Reserved]
  5. Subpart E: Approval of Routes: Domestic and Flag Operations
  6. Subpart F: Approval of Areas and Routes for Supplemental Operations
  7. Subpart G: Manual Requirements
  8. Subpart H: Aircraft Requirements
  9. Subpart I: Airplane Performance Operating Limitations
  10. Subpart J: Special Airworthiness Requirements
  11. Subpart K: Instrument and Equipment Requirements
  12. Subpart L: Maintenance, Preventive Maintenance, and Alterations
  13. Subpart M: Airman and Crewmember Requirements
  14. Subpart N: Training Program
  15. Subpart O: Crewmember Qualifications
  16. Subpart P: Aircraft Dispatcher Qualifications and Duty Time
  17. Subpart Q: Flight Time Limitations and Rest Requirements: Domestic Operations
  18. Subpart R: Flight Time Limitations: Flag Operations
  19. Subpart S: Flight Time Limitations: Supplemental Operations
  20. Subpart T: Flight Operations
  21. Subpart U: Dispatching and Flight Release Rules
  22. Subpart V: Records and Reports
  23. Subpart W: Crewmember Certificate: International
  24. Subpart X: Emergency Medical Equipment and Training
  25. Subpart Y: Advanced Qualification Program
  26. Subpart Z: Hazardous Materials Training Program
  27. Subpart AA: Continued Airworthiness and Safety Improvements
  28. Subpart BB [Reserved]
  29. §§ 121.1200-121.1399 [Reserved]
  30. Subpart CC [Reserved]
  31. §§ 121.1400-121.1499 [Reserved]
  32. Subpart DD: Special Federal Aviation Regulations
    1. § 121.1500 SFAR No. 111—Lavatory Oxygen Systems.
  33. Appendices

    Appendix A to Part 121: First Aid Kits and Emergency Medical Kits
  34. Appendix B to Part 121: Airplane Flight Recorder Specification
  35. Appendix C to Part 121: C-46 Nontransport Category Airplanes
  36. Appendix D to Part 121: Criteria for Demonstration of Emergency Evacuation Procedures Under § 121.291
  37. Appendix E to Part 121: Flight Training Requirements
  38. Appendix F to Part 121: Proficiency Check Requirements
  39. 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
  40. Appendix H to Part 121: Advanced Simulation
  41. Appendixes I-J to Part 121 [Reserved]
  42. Appendix K to Part 121: Performance Requirements for Certain Turbopropeller Powered Airplanes
  43. Appendix L to Part 121: Type Certification Regulations Made Previously Effective
  44. Appendix M to Part 121: Airplane Flight Recorder Specifications
  45. Appendix N to Part 121 [Reserved]
  46. Appendix O to Part 121: Hazardous Materials Training Requirements For Certificate Holders
  47. Appendix P to Part 121: Requirements for ETOPS and Polar Operations

14 CFR Part 121|eCFR Sep 29, 2026

Subpart DD

Special Federal Aviation Regulations

1 Section|§ 121.1500

Read Citation (on FlightPush)

§ 121.1500 SFAR No. 111—Lavatory Oxygen Systems.

(a)

Applicability. This SFAR applies to the following persons:

(1)

All operators of transport category airplanes that are required to comply with AD 2012-11-09, but only for airplanes on which the actions required by that AD have not been accomplished.

(2)

Applicants for airworthiness certificates.

(3)

Holders of production certificates.

(4)

Applicants for type certificates, including changes to type certificates.

(b)

Regulatory relief. Except as noted in paragraph (d) of this section and contrary provisions of 14 CFR part 21, and 14 CFR 25.1447, 119.51, 121.329, 121.333 and 129.13, notwithstanding, for the duration of this SFAR:

(1)

A person described in paragraph (a) of this section may conduct flight operations and add airplanes to operations specifications with disabled lavatory oxygen systems, modified in accordance with FAA Airworthiness Directive 2011-04-09, subject to the following limitations:

(i)

This relief is limited to regulatory compliance of lavatory oxygen systems.

(ii)

Within 30 days of March 29, 2013, all oxygen masks must be removed from affected lavatories, and the mask stowage location must be reclosed.

(iii)

Within 60 days of March 29, 2013 each affected operator must verify that crew emergency procedures specifically include a visual check of the lavatory as a priority when checking the cabin following any event where oxygen masks were deployed in the cabin.

(2)

An applicant for an airworthiness certificate may obtain an airworthiness certificate for airplanes to be operated by a person described in paragraph (a) of this section, although the airplane lavatory oxygen system is disabled.

(3)

A holder of a production certificate may apply for an airworthiness certificate or approval for airplanes to be operated by a person described in paragraph (a) of this section.

(4)

An applicant for a type certificate or change to a type certificate may obtain a design approval without showing compliance with § 25.1447(c)(1) of this chapter for lavatory oxygen systems, in accordance with this SFAR.

(5)

Each person covered by paragraph (a) of this section may inform passengers that the lavatories are not equipped with supplemental oxygen.

(c)

Return to service documentation. When a person described in paragraph (a) of this section has modified airplanes as required by Airworthiness Directive 2011-04-09, the affected airplanes must be returned to service with a note in the airplane maintenance records that the modification was done under the provisions of this SFAR.

(d)

Expiration. This SFAR expires on September 10, 2015, except this SFAR will continue to apply to any airplane for which the FAA approves an extension of the AD compliance time for the duration of the extension.

Regulations Referenced Outside This Subpart

14 CFR Part 2114 CFR 25.144714 CFR 119.5114 CFR 121.32914 CFR 121.333
Previous SubpartSubpart AA: Continued Airworthiness and Safety ImprovementsNext Appendix Appendix A to Part 121: First Aid Kits and Emergency Medical Kits

You Are Reading

§ 121.1500 SFAR No. 111—Lavatory Oxygen Systems.

Read Citation (on FlightPush)