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Helio HST-550A

FAA model code4301006

Helio HST-550A: Fixed wing single engine, with 2 aircraft on the US register, built between 1968 and 1972.

2
On the US register
1
Engines
10
Seats
150mph
Cruise speed
Manufacturer
Helio
Class
Fixed wing single engine
Engine type
Turbo-prop
Operates from
Land
Weight class
Up to 12,499 lb
Build years on the register
1968–1972

Aircraft on the register by year built

More registered Helio HST-550A aircraft were built in 1968 than in any other year: 1.

0111970

Source: FAA Releasable Aircraft Registry, retrieved 2026-09-22. Counts are Voydar's tally of current registrations. Aircraft still registered today, by year of manufacture; not production totals.

Where they are registered

US states with the most registrations of this type. The state is the registration address, a count only.

  • AZ1
  • OR1

Source: FAA Releasable Aircraft Registry, retrieved 2026-09-22. Counts are Voydar's tally of current registrations.

Accident record

1 NTSB record matches an aircraft of this type that is on the register today (2 registered). This is not an accident rate: it leaves out aircraft no longer registered and says nothing about hours flown.

Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.

Other Helio models

All Helio models

Specifications are the FAA aircraft reference record for the model code; the FAA file carries no dimensions or performance beyond those shown. Reference data, not for flight planning.