T91-11-51: Loss of control of the propeller system
FAA order T91-11-51 is an airworthiness directive. The FAA's subject line: Loss of control of the propeller system. System: propeller.
What it applies to as the FAA lists it
- Kind of product
- Propeller
- Makes
- Hamilton Standard Division; Hamilton Sundstrand
- Models
- 6/5500/F-1, 14RF-19, 14RF-21, 14RF-9, 14SF- 5, 14SF- 7, 14SF-11, 14SF-15
Dates and paperwork
- Docket
- Unknown
- Replaced by
- 93-06-06
- Status
- Historical
- The FAA's document
- Read the order on the FAA's site
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/T91-11-51.json · aircraft systems.