47-30-07: Trip-Free Circuit Breaker
FAA order 47-30-07 is an airworthiness directive. The FAA's subject line: Trip-Free Circuit Breaker. System: electrical power.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Textron Aviation Inc.
- Models
- Army AT-11
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (620 characters)
47-30-07 BEECH: (Was Mandatory Note 3 of AD-2-582-2.) Applies Only to AT-11 Aircraft Which Are Not Equipped With Generator Circuit Protective Devices.
To be accomplished prior to certification or, if certificated, on next periodic inspection but not later than October 1, 1947.
In accordance with Figure 1 install a 50-ampere trip-free circuit breaker, Spencer Thermostat Co. PLM-50 or equivalent, between the battery terminal of each generator cutout and its respective ammeter shunt. The circuit breakers should be accessible in flight and labeled respectively: "LEFT GEN. CIRCUIT" and "RIGHT GEN. CIRCUIT."
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/47-30-07.json · aircraft systems.