Hiller UH-12E / 12E4 Supplemental Type Certificates (STCs)

85 STCs approved for the Hiller UH-12E / 12E4 (UH-12E / 12E4) family · FAA quick reference

Quick reference only — not a compliance record. This list is for research convenience and may be incomplete or out of date. It is not an airworthiness compliance determination. Always verify against the official FAA record, and check directly with the FAA before relying on it. ADs are mandatory; STCs indicate approval for the type (not installation on a specific airframe); SAIBs are advisory.

Supplemental Type Certificates (STCs) approved for the Hiller UH-12E / 12E4 type — FAA-approved modifications available for this aircraft family. Approval for the TYPE does not mean a given STC is installed on any individual airframe (that lives in the logbooks/337s).

Document	Title / Subject	Date
SA02033AT (PAGE 1)	Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW) — M-20 Oil Separators LLC	2006-04-10
SH634NW	Installation of Tundra Pads. — Siam Hiller Holdings	1995-11-30
SH476NW	Installation of an agricultural spray system. — Siam Hiller Holdings Inc	2009-04-15

+ 82 more STCs for the Hiller UH-12E / 12E4 family.

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