North Country Heli FlightHELICOPTER GROUND SCHOOL · ACS-ALIGNED
Private (PPL-H) · Lesson 02

ACS Alignment

FAA-S-ACS-15 — Private Pilot, Rotorcraft–Helicopter · Area of Operation I. Preflight Preparation · Task: Airworthiness Requirements
PA.I.B.K1 — airworthiness requirementsPA.I.B.K2 — required documents (ARROW)PA.I.B.K3 — required inspections & ADs

Airworthiness & Required Documents

What must be aboard, what must be current, and who decides the aircraft is legal to fly.

By the end of this lesson you can:

1 · ARROW — documents aboard the aircraft

LetterDocumentNote
AAirworthiness CertificateDisplayed in the cockpit; valid while inspections/ADs are current (FAR 91.203).
RRegistration CertificateCurrent FAA registration.
RRadio Station LicenseOnly required for international operations.
OOperating limitations / POH & placardsFAR 91.9 — the approved flight manual / markings.
WWeight & Balance dataCurrent W&B must be aboard.

2 · Watch: the required documents

Curated reference clip — “The 5 Required Aircraft Documents A.R.R.O.W. — For Student Pilots,” Part Time Pilot (YouTube).

3 · Inspections that keep it airworthy

InspectionIntervalReg
AnnualEvery 12 calendar months91.409(a)
100-hourEvery 100 hrs when carrying persons for hire or for flight instruction for hire91.409(b)
TransponderEvery 24 calendar months91.413
ELTEvery 12 calendar months; battery rules91.207
Pitot-static / altimeter (IFR)Every 24 calendar months91.411

Robinson-specific: the R44 also carries manufacturer life limits and the 12-year / 2,200-hour overhaul, plus SFAR 73 currency — confirm current intervals against the R44 maintenance manual / your A&P-IA (Brian Strange).

4 · Airworthiness Directives (ADs) & pilot responsibility

ADs (14 CFR Part 39) are mandatory. The owner/operator must ensure compliance; the logbooks show it. As PIC, you are responsible under FAR 91.7 for determining the aircraft is in condition for safe flight, and you must discontinue a flight if an unairworthy condition appears. FAR 91.403 places primary maintenance responsibility on the owner/operator.

5 · Reference sources

Read the rules

📄 14 CFR Part 91 (91.7, 91.9, 91.203, 91.405–417) 📄 14 CFR Part 39 — Airworthiness Directives
Your aircraft: the R44 POH/Maintenance Manual and N668SA’s logbooks (kept with Richmor Aviation / Brian Strange, A&P-IA) show the current inspection and AD status.
✍️ Fill in for the aircraft you fly (N-________)
Value / limit:
R44 POH section & page:
Leave blank until you look it up in your R44 POH (see the reference above) and confirm it with your CFI. Aircraft-specific numbers vary with weight & conditions — don’t guess.
Risk management (the “Consider”): “someone else signed it off” is not a defense. Before every flight, you personally confirm the documents are aboard, the inspections are current, and nothing in the logbooks or your walk-around says the aircraft isn’t ready.

6 · Knowledge check