ACS Alignment

FAA-S-ACS-16 — Commercial Pilot, Rotorcraft–Helicopter · Area of Operation I. Preflight Preparation · Task: B — Airworthiness Requirements

CH.I.B.K1 — required inspections & airworthiness CH.I.B.K2 — ADs, required equipment & MEL/inop equipment CH.I.B.R1 — flying with inoperative equipment CH.I.B.S1 — determine airworthiness for a given flight

⚑ FLAG (Walter): confirm Task letter (B) and K/R/S sub-numbers, and the inoperative-equipment process (91.213) wording for a helicopter without an MEL.

Airworthiness Requirements

Is this helicopter legal and safe to fly today? Inspections, ADs, required equipment, and inop items.

By the end of this lesson you can:

List the inspections that keep a helicopter airworthy (annual, 100-hour, ELT, transponder) and where they are recorded.
Explain airworthiness directives (ADs) and Robinson’s mandatory life-limited/overhaul items.
Determine required equipment for a flight (91.205) and handle inoperative equipment (91.213).
Make and document an airworthiness determination before flight.

1 · Inspections & records

Inspection	Interval / rule
Annual	12 calendar months (91.409)
100-hour	If for hire or flight instruction for hire (91.409)
Transponder	24 calendar months (91.413)
ELT	Inspection/battery per 91.207

Find these in the airframe, engine, and (for helicopters) the maintenance records, along with ADs and the status of life-limited components.

2 · ADs & Robinson mandatory items

Airworthiness directives are mandatory. Robinson helicopters also carry manufacturer mandatory items — component time/calendar life limits and the 12-year / 2,200-hour overhaul — that must be tracked. Confirm the current values and any service bulletins/letters in the R44 maintenance manual; do not assume.

3 · Required & inoperative equipment

Determine the equipment required for the specific flight (91.205 for the operation/conditions, plus the type-certificate/POH equipment list and any ADs). If something is inoperative, follow 91.213: with no MEL, an inoperative item must be either required-or-not by 91.205, the equipment list, or an AD, and if not required it must be removed or placarded inoperative and a determination made that it does not affect safety. Document the decision.

4 · Watch

Curated reference clip — “Airworthiness for Commercial Pilots” · Northwest Aeronaut (YouTube), verified via oEmbed. Embedded with the creator’s player; we don’t host or alter it.

5 · Reference sources

Use the authoritative references

📄 Helicopter Flying Handbook (FAA-H-8083-21) — Preflight 📄 14 CFR 91.205 / 91.213 / 91.405 / 91.409 / 91.413

Your aircraft: the equipment list, life-limited components, and mandatory Robinson inspection/overhaul intervals are aircraft-specific — note your R44’s figures from the POH equipment list and the R44 Maintenance Manual.

✍️ Fill in for the aircraft you fly your R44’s next annual/100-hr due, transponder & ELT status, and the hours/calendar remaining on the 12-yr/2,200-hr overhaul — look these up in the maintenance records and confirm with maintenance/your CFI.

⚑ FLAG (Walter): the R44 is a VFR-certificated piston helicopter; confirm the aircraft/figures the student actually flies and that all numbers come from the current R44 POH.

Risk management (the “Consider”): the airworthiness trap is assuming the aircraft is legal because it flew yesterday. A lapsed inspection, an overdue AD, or an un-placarded inop item makes the flight illegal and possibly unsafe. Check the records yourself and document the inop-equipment decision before you launch.