Hiller UH-12E

2 ADs match the Hiller UH-12E airframe. Engine ADs depend on the engine installed and are listed on each aircraft page.

• 97-20-15Hiller Aircraft Corporation Model UH- 12A, UH-12B, UH-12C, UH-12D, and UH-12E HelicoptersNov 12, 1997
• 97-10-16Hiller Aircraft Corporation Model UH- 12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E…Jun 27, 1997

AI-extracted — verify against original. Applicability must be confirmed by a mechanic against the aircraft's records.

One email when a new AD may apply to this model. Stop any time.

NTSB events

197

Destroyed

33

Substantial damage

162

Minor damage

2

No damage

0

Per 1,000 aircraft per year, 2016–2025

9.2

Events are NTSB accidents and incidents matched to Hiller UH-12E airframes by serial number or N-number; counts are approximate, because older events can't always be matched. The yearly rate divides NTSB events from 2016 to 2025 by the number of registered Hiller UH-12E aircraft in each of those years. Not adjusted for hours flown: training aircraft fly far more than most.

• Apr 30, 2026Substantial damage · none injuries · Chickasha, OKN22SP
• Aug 11, 2025Substantial damage · none injuries · Fobes Hill, WAN703WA
• Mar 25, 2025Substantial damage · none injuries · Ruston, LAN6006K
• Jul 24, 2024Substantial damage · none injuries · Bonners Ferry, IDN3375T
• Jul 6, 2022Destroyed · serious injuries · Wenatchee, WAN130HA

28 reports on Hiller UH-12E airframes. Each aircraft page lists its own reports.

2 ADs published since 1998 may apply to the Hiller UH-12E; recurring ADs need to be checked at each inspection. 197 NTSB events since 1982 involve Hiller UH-12E airframes; from 2016 to 2025, about 9.2 a year per 1,000 registered aircraft. Operators and repair stations filed 28 service difficulty reports on Hiller UH-12E airframes since 1995. Check each aircraft's own record before you buy.

• Read the logbooks for the airframe, engine and propeller, start to finish.
• Check AD compliance records against the ADs that may apply.
• Look for damage history and Form 337 major repairs and alterations.
• Have an independent A&P or IA do a pre-buy inspection.
• Run a title search and use escrow for the payment.