This notice announces the FAA's intent to designate Stephen M. Hill Supplemental Type Certificate (STC) No. SA1584SW as abandoned and make the related engineering data available upon request. The FAA has received a request to provide engineering data concerning this STC. The FAA has been unsuccessful in contacting Stephen M. Hill concerning the STC. This action is intended to enhance aviation safety.
| Document Number | 2025-23266 |
| FR Citation | 90 FR 59320 |
| Type | Notice |
| Published | Dec 18, 2025 |
| Effective Date | - |
| RIN | - |
| Docket ID | Docket No. FAA-2025-5396 |
| Pages | 59320–59321 (2 pages) |
| Text Fetched | No |
| Part | Name | Agency |
|---|---|---|
| No linked CFR parts | ||
| Type | Proposed | Final | Method | Conf |
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