Grumman G-21 — Airworthiness Directives & records checklist
1 Grumman G-21 is on the U.S. registry. Here’s what a records review covers for one — the Airworthiness Directives that apply, the known trouble spots, and the checklist a buyer or owner should hold every logbook against.
Airworthiness Directives that apply to the Grumman G-21
- one-timeAD 73-12-06 — Airworthiness Directives; Grumman Model G-21 and G-21A Type Airplanes · 1973-01-01
- one-timeAD 72-11-03 — Airworthiness Directives; Grumman Aircraft Model G-21 and G-21A Airplanes · 1972-01-01
- one-timeAD 63-27-02 — Airworthiness Directives; Grumman Model G-21 Series Aircraft · 1963-01-01
- one-timeAD 46-38-01 — Airworthiness Directives; Grumman Model G-21 and G- 21A Aircraft · 1946-01-01
This is the applicability list. Which of these are complied with, their computed next-due dates, and the 1 serial/mod-conditional ADs that actually apply to your aircraft come from its digitized logbooks — that’s the verified report.
Known trouble spots on the G-21
Many Hartzell and McCauley constant-speed props carry blade-shank or hub ADs plus a calendar/hours overhaul interval; blade corrosion and hub grease leaks are common findings. Confirm the prop AD status and last overhaul against the interval.
The records checklist for a Grumman G-21
Enter a tail number and Tailplate reads its logbooks against this list — every AD matched to compliance evidence, next-due dates computed, damage history pulled, and a records-adjusted value.
Look up a tail number →or see the free AD listApplicability is derived from the FAA directive corpus and the aircraft’s type certificate; it is advisory and not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.