52-13-01: Radio Receivers
FAA order 52-13-01 is an airworthiness directive. The FAA's subject line: Radio Receivers. System: instruments and avionics.
What it applies to as the FAA lists it
- Kind of product
- Appliance
- Makes
- Collins Radio
- Models
- Receivers
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 (458 characters)
52-13-01 COLLINS RADIO: Applies to All Models 51R-1 and 51R-2 Radio Receivers.
Compliance required by November 1, 1952.
To eliminate failures of 90/150 cycle tone localizer filters due to electrodeposition of copper from the coil windings to the laminated iron core, modify the receiver in accordance with Collins 51R-1 and -2 Service Bulletin No. 21, dated May 7, 1952, by removing the B plus voltage from the 90 and 150 cycle filter input circuits.
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/52-13-01.json · aircraft systems.