| AD Number | 59-24-02 | Status | Active |
| Effective Date | Not specified | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Appliance"] | Product Subtype | Not specified |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | C-O-Two Walter Kidde |
| Model(s) | Smoke Detectors Smoke Detectors |
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characteristic, the manufacturers, Walter Kidde and Company and the C-O-TWO Division of Fyr-Fyter Company have withdrawn their statements of conformance with Technical Standard Orders, TSO-C1 and C1a for these smoke detectors.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.