# STC SA4140SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Steward-Davis Intn'l Inc, United States
- Description: Model 707-100 B - Installation of Steward-Davis Model 84100-1 auxiliary power module.
- Applied: October 31, 1978
- Status date: April 30, 1992
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A21](https://openairdocs.org/tcds/4A21)
- Certificate PDF: https://openairdocs.org/files/sha256/ce/79/ce79dde43c59143f206b3d0c307249622bfeb407871fd8d5465b47b1eac24a64
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7265F8A4C931CC0A85256CC2000E39CA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4140SW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 707 ([TCDS 4A21](https://openairdocs.org/tcds/4A21))

## 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.

---..•1i llnittd ,statts of£lmtrica Bcpartmrnrofl:ransportation-JederalgniationgdminiBtretion ~upp!cmcntal1C~pc<tcrtificQtc ~ SA4140SW 150- YL'~/l~;~uedk-' Steward-Davis International, Inc.

10929 Vanowen Street North Hollywood, California 91605 ~QJ<--ad'~~~/m~"/k,~'(,,,.d,MU:d4//N~nUl£i,~~7'I': 4b -<f~ civil Air ~kn4, ~~~~d-.~-c~~A~nk' 4A21 vIIak: Boeing ~KU, 707-100B 9~~!7ir9J-ed~/n,-G'k":r'- Installation of Steward-Davis Model 84100-1 Auxiliary Power Module in accordance with Drawing List 41-1 dated 3/28/80, or later FAA approved revision .

...£ndok~-OnulfJ.,...-uIdio-n4 .- FAA Approved Airplane Flight Manual Supplement dated July 2, 1980 is required.

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

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July 2, 1980 f;, (Trttt) AT!)' alteration of this certificate is punishable by a.line of not exceeding $/ ,000, or imprisonment not exceeding 3 )'ears, or both.

This certificate may' be transferred in accordance with FA R 21,47, FAA Fo ••• 8110-2 (10-68)

## Every issue (1)

- April 30, 1992: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ce/79/ce79dde43c59143f206b3d0c307249622bfeb407871fd8d5465b47b1eac24a64)

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