AA.I.E.K2FAA-S-ACS-11A · Nov 2023Knowledge
Airplane automation components (e.g., flight director, autopilot), their relationship t...
Airplane automation components (e.g., flight director, autopilot), their relationship to each other, and how to manage the automation for flight.
Bottom line
Following disengagement of the autopilot, a warning (visual and auditory) must be provided to each pilot and be timely and distinct from all other cockpit warnings.
Key numbers
| Number | What it means |
|---|---|
| 500 ft (above terrain elevation) | AP enroute min |
FAA references
- 14 CFR 25.1329 (Flight guidance system.) — eCFR current as of 2026-10-08
- 14 CFR 121.579 (Minimum altitudes for use of autopilot.) — eCFR current as of 2026-10-01
- AC 61-138, paras. 14.3.9.1, 14.3.9.2 — AC No: 61-138A
- 14 CFR 25.1302 (Installed systems and equipment for use by the flightcrew.) — eCFR current as of 2026-10-08
- AC 61-138 Appendix 2, Sample Demonstrations, and Appendix 3, Sample — AC No: 61-138A
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