Robinson R44 — U.S. Fleet History & Risk Data
Helicopter · 1,868 aircraft on the U.S. registry · built 1992–2026
1,868
registered airframes
175
NTSB records across the fleet (2008–present)
1,545
service difficulty reports (1995–present)
0.8
SDRs per airframe on average
Where this fleet reports maintenance difficulties
FAA Service Difficulty Reports filed against Robinson R44 airframes, grouped by JASC system chapter — a factual picture of what mechanics actually report on this type.
- 53 — Fuselage : 499 reports
- 33 — Lights : 266 reports
- 57 — Wings : 82 reports
- 32 — Landing Gear : 67 reports
- 21 — Air Conditioning : 50 reports