Interstate S-1A

Photo: USAF · Public domain

Year

—

Owner

—

Last seen

—

MTOW

—

Range

—

Seats

—

S-1A

Interstate · S-1A

Model overview

Fleet & certification

Built: 68
Active: 68

Safety & ops history

Where to look next

Detailed safety & ops history coming soon — view this model's FAA Airworthiness Directives at FAA.gov.

Interstate S-1A market & fleet intelligence

Registry, flight-tracking and market data on the Interstate S-1A fleet — updated daily.

Fleet age

85 yearsmedian age

40s

Of the 58 registered Interstate S-1A with a known build year (85% of the 68 we track), the median age is 85 years.

Registration activity

1changed registration in 12 months

1 of the 68 registered Interstate S-1A we track changed registration in the last 12 months (1% of the fleet), across 1 registration event. Registration changes include ownership transfers, re-registrations and address updates — not all are sales.

Registered S-1A aircraft

Individual S-1A airframes by tail number — registration history, operator and lineage.

See all 68 registered S-1A