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Type Record · As of May 3, 2026

HILLER UH-12E4

Rotorcraft

Registered

4

Year Range

1966–1976

NTSB Events

4

Airworthiness Directives

0

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered HILLER UH-12E4 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • DE 50.0% 2
  • SC 25.0% 1
  • MT 25.0% 1

By Decade of Manufacture

  • 1960s 25.0% 1
  • 1970s 25.0% 1
  • Unknown 50.0% 2

02 /  NTSB Records

Events involving HILLER UH-12E4 aircraft

4 event(s) on file. Showing the most recent 4.

03 /  Airworthiness Directives

FAA directives applicable to HILLER UH-12E4

No matching airworthiness directives are on file for this make and model in the Federal Register.

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for HILLER UH-12E4

Advisory Circulars

ACs whose subject explicitly mentions HILLER or UH-12E4.

05 /  Aircraft of this type

All 4 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.

4 of 4
N-number St Year NTSB FAA
N48220 SC — ● Look up ↗
N501HA DE 1966 · Look up ↗
N64741 MT 1976 ● Look up ↗
N705WA DE — ● Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 /  Sources & Methodology

Every count traces back to a primary US-government source

We render counts and lists as the agency publishes them. Read the methodology →