AC 20-115D

Advisory circular · Airborne Software Development Assurance Using EUROCAE ED-12( ) and RTCA DO-178( )

Approved
July 21, 2017
Last reviewed
October 30, 2018
Cancels
AC20-115C
Family
AC 20-115 · 5 versions
Revision
D
14 CFR parts
1, 3, 5, 11, 21, 23, 25, 27, 29, 33, 35
Cited by
1 AD

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed October 23, 2026.

Show pages 1–12

(5) AC 23.1309-1, System Safety Analysis and Assessment for Part 23 Airplanes.

(6) AC 25.1309-1, System Design and Analysis.

(7) AC 27-1309, Equipment, Systems, and Installations, (included in AC 27-1, Certification of Normal Category Rotorcraft).

(8) AC 29-1309, Equipment, Systems, and Installations, (included in AC 29-2, Certification of Transport Category Rotorcraft).

(9) AC 33.28-1, Compliance Criteria for 14 CFR § 33.28, Aircraft Engines, Electrical and Electronic Engine Control Systems.

(10) AC 33.28-2, Guidance Material for 14 CFR 33.28, Reciprocating Engines, Electrical and Electronic Engine Control Systems.

(11) AC33.28-3, Guidance Material For 14 CFR § 33.28, Engine Control Systems.

(12) AC 35.23-1, Guidance Material for 14 CFR 35.23, Propeller Control Systems.

c. Industry Documents.

(1) RTCA DO-178, Software Considerations in Airborne Systems and Equipment Certification, dated January 1982 (no longer in print).

(2) RTCA DO-178A, Software Considerations in Airborne Systems and Equipment Certification, dated March 1985 (no longer in print).

(3) RTCA DO-178B, Software Considerations in Airborne Systems and Equipment Certification, dated December 1, 1992.

(4) RTCA DO-178C, Software Considerations in Airborne Systems and Equipment Certification, dated December 13, 2011.

(5) RTCA DO-248C, Supporting Information for DO-178C and DO-278A, dated December 13, 2011.

(6) RTCA DO-297, Integrated Modular Avionics (IMA) Development Guidance and Certification Considerations, dated November 8, 2005.

(7) RTCA DO-330, Software Tool Qualification Considerations, dated December 13, 2011.

(8) RTCA DO-331, Model-Based Development and Verification Supplement to DO- 178C and DO-278A, dated December 13, 2011.

(9) RTCA DO-332, Object-Oriented Technology and Related Techniques Supplement to DO-178C and DO-278A, dated December 13, 2011.

(10) RTCA DO-333, Formal Methods Supplement to DO-178C and DO-278A, dated December 13, 2011.

(11) EUROCAE ED-12, Software Considerations in Airborne Systems and Equipment Certification, dated May1982 (no longer in print).

(12) EUROCAE ED-12A, Software Considerations in Airborne Systems and Equipment Certification, dated October1985 (no longer in print).

(13) EUROCAE ED-12B, Software Considerations in Airborne Systems and Equipment Certification, dated December 1992.

(14) EUROCAE ED-12C, Software Considerations in Airborne Systems and Equipment Certification, dated January 2012.

(15) EUROCAE ED-94C, Supporting Information for ED-12C and ED-109A, dated January 2012.

(16) EUROCAE ED-215, Software Tool Qualification Considerations, dated January 2012.

(17) EUROCAE ED-218, Model-Based Development and Verification Supplement to ED- 12C and ED-109A, dated January 2012.

(18) EUROCAE ED-217, Object-Oriented Technology and Related Techniques Supplement to ED-12C and ED-109A, dated January 2012

(19) EUROCAE ED-216, Formal Methods Supplement to ED-12C and ED-109A, dated January 2012.

12. Where to Find this AC.

a. You may find this AC at http://www.faa.gov/regulations_policies/advisory_circulars/.

b. If you have suggestions for improvement or changes, you may use the template at the end of this AC.

Susan J. M. Cabler Manager, Design, Manufacturing, & Airworthiness Division Aircraft Certification Service

Appendix A A-1 Appendix A. Advisory Circular Feedback Information If you find an error in this AC, have recommendations for improving it, or have suggestions for new items/subjects to be added, you may let us know by (1) complete the form online at https://ksn2.faa.gov/avs/dfs/Pages/Home.aspx or (2) emailing this form to 9-AWA-AVS-AIR- DMO@faa.gov Subject: AC Date: ___________ Please check all appropriate line items:

An error (procedural or typographical) has been noted in paragraph _______ on page _______.

Recommend paragraph _______ on page _______ be changed as follows:

In a future change to this AC, please cover the following subject:

(Briefly describe what you want added.)

Other comments:

I would like to discuss the above. Please contact me.

Submitted by: __________________________________ Date: __________________ Telephone Number: __________________ Routing Symbol: _________________ FAA Form 1320-19 (10-98)