MD 500 / Hughes 369 series — U.S. Fleet History & Risk Data
Helicopter · 654 aircraft on the U.S. registry · built 1966–2025
654
registered airframes
98
NTSB records across the fleet (2008–present)
1,154
service difficulty reports (1995–present)
1.8
SDRs per airframe on average
Where this fleet reports maintenance difficulties
FAA Service Difficulty Reports filed against MD 500 / Hughes 369 series airframes, grouped by JASC system chapter — a factual picture of what mechanics actually report on this type.
- 33 — Lights : 267 reports
- 53 — Fuselage : 238 reports
- 72 — Engine : 85 reports
- 64 — Tail Rotor : 48 reports
- 62 — Main Rotor : 44 reports