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FAA orders · airworthiness directive · current

59-24-02: Smoke Detectors

FAA order 59-24-02 is an airworthiness directive. The FAA's subject line: Smoke Detectors. System: other and general.

What it applies to as the FAA lists it

Kind of product
Appliance
Makes
C-O-Two; Walter Kidde
Models
Smoke Detectors, Smoke Detectors

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 (1,051 characters)
59-24-02 KIDDE and C-O-TWO: Applies to Smoke Detectors, Kidde Model A4532-M1, and C-O-TWO Models ASDC-2 and ASDT-3, Installed in Civil Transport Category Aircraft. The Walter Kidde Model A4532-M1 and the C-O-TWO Models ASDC-2 and ASDT-3 smoke detectors have unstable and over-sensitive alarm settings; thus resulting in false indications. Due to this unsatisfactory characteristic, the manufacturers, Walter Kidde and Company and the C-O-TWO Division of Fyr-Fyter Company have withdrawn their statements of conformance with Technical Standard Orders, TSO-C1 and C1a for these smoke detectors. Therefore, their TSO approvals are invalidated. All Models A4532-M1, ASDC-2 and ASDT-3 smoke detectors installed in transport category aircraft shall be removed from service prior to January 31, 1960, except when these models are approved as a part of the airplane installation under a supplemental type certificate. The TSO identification shall be eliminated from the detector label of such detectors approved as a part of the airplane installation.

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/59-24-02.json · aircraft systems.