# STC SA4445SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: BKM Systems
- Description: Replace overspeed warning bell with overspeed clacker and add fire warning bell.
- Status date: August 14, 1981
- Data sheets: 2A15, 2A15, 2A15, 2A15
- Certificate PDF: https://openairdocs.org/files/sha256/59/ea/59eaa06b1b099cb350ce40cafbbea0cc5231e78c0ea840e85c35acd88793c805
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F924BD52BA24E3DF85256CC2000E3C82.0001
- Page: https://openairdocs.org/stc/SA4445SW

## ADs that name it

None.

## Approved models (4)

- Lockheed Martin Corporation 1329-23A (TCDS 2A15)
- Lockheed Martin Corporation 1329-23D (TCDS 2A15)
- Lockheed Martin Corporation 1329-23E (TCDS 2A15)
- Lockheed Martin Corporation 1329-25 (TCDS 2A15)

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

"United States of america Bepartment of transportation—federal Slbiation administration Supplemental t^pe Certificate SMM38* *°*" ™- The BKM Company P. 0. Box 7001 Dallas, Texas 75209 >z^<£i^^4^ /^<^£s<2^^ 4b ^J&& Civil Air 2A15 Lockheed 1329 : Replace overspeed warning bell with overspeed clacker and add fire warning bell according to The BKM Company Drawing List DL200-1329 dated July 27, 1981, or later FAA approved revision.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

steivrr^^ ^c^ni^ttd : July 27, 1981 AugUSt 14, 1981 (Signaling) ^otTP. Watson Chief, Engineering and Manufacturing Branch (Title) '

## Every issue (1)

- August 14, 1981: Issued, Current. [certificate](https://openairdocs.org/files/sha256/59/ea/59eaa06b1b099cb350ce40cafbbea0cc5231e78c0ea840e85c35acd88793c805)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.