# Special Conditions: Honda Aircraft Company LLC Model HA-480 Airplane; High Altitude Operation

**Action Urgency Score:** 55/100

| Field | Value |
|---|---|
| Agency | Transportation Department; Federal Aviation Administration |
| Type | Proposed rule |
| Action | Notice of proposed special conditions. |
| Published | 2026-10-05 |
| Comments close | 2026-11-19 |
| Significant | No |
| CFR parts | 14 CFR 23 |
| Summary | This action proposes special conditions for the Honda Aircraft Company LLC (Honda) Model HA-480 airplane. This airplane will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for normal category airplanes. This airplane will have design features associated with high altitude operations up to 47,000 feet. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the additional safety standards that the Administrator con |
| Document number | 2026-20350 |

## Why this score
- Comment deadline within 30 days.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/10/05/2026-20350/special-conditions-honda-aircraft-company-llc-model-ha-480-airplane-high-altitude-operation). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.