# STC ST00111BO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Kollsman Inc., United States
- Description: Installation of a dual Kollsman Servo Altimeter Alerter System (SAAS), P/N 49201-101
- Applied: April 24, 1998
- Status date: December 3, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/89/a6/89a6a8a8e0412db4fe6a79249b6131d6d20c25d1166c89b7149923d6e1774f90
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/94CACA58BB2A7FE88625758900721785.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00111BO

## ADs that name it (0)

None.

## Approved models (6)

- The Boeing Company 747-100 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-100B SUD Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-100B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200C Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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.

Part 25 of the Federal Aviation Regulations.

Installation of a dual Kollsman Servo Altimeter Alerter System (SAAS), P/N 49201-101, in accordance with Kollsman Installation Instructions Document S1552, Revision 2, dated October 26, 1999, or later FAA-approved revision.

1. Kollsman Airplane Flight Manual Supplement No. S1549, Revision Initial, dated December 3, 1999, or later FAA-approved revision, is required and must be carried during all flights.

2. Compatibility of this design change with previously approved modifications must be determined by the installer.

The STC holder will provide each person it permits to use this certificate to alter the product written evidence of the agreement in a form acceptable to the Administrator.

Kollsman, Incorporated 220 Daniel Webster Highway Merrimack, New Hampshire 03054 A20WE Make : Boeing Model : 747-100 and -200

Date of application : April 24, 1998

Date of issuance : December 3, 1999

( Signature) Ronald L. Vavruska Manager Boston Aircraft Certification Office

( Title)

## Every issue (1)

- December 3, 1999: Issued, Current. [certificate](https://openairdocs.org/files/sha256/89/a6/89a6a8a8e0412db4fe6a79249b6131d6d20c25d1166c89b7149923d6e1774f90)

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