# STC ST10398SC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Nevada Company LLC, United States
- Description: Installation of a WX-1000 Stormscope.
- Applied: May 27, 2004
- Status date: December 16, 2024
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A20EA](https://openairdocs.org/tcds/A20EA)
- Certificate PDF: https://openairdocs.org/files/sha256/43/a4/43a4baf7ff6f292f874edda76c47e44ec9a2d230acce351c71ce4057bc19e482
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169461155520250226183714.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST10398SC

## ADs that name it (0)

None.

## Approved models (5)

- Bombardier Inc. DHC-7-1 ([TCDS A20EA](https://openairdocs.org/tcds/A20EA))
- Bombardier Inc. DHC-7-100 ([TCDS A20EA](https://openairdocs.org/tcds/A20EA))
- Bombardier Inc. DHC-7-101 ([TCDS A20EA](https://openairdocs.org/tcds/A20EA))
- Bombardier Inc. DHC-7-102 ([TCDS A20EA](https://openairdocs.org/tcds/A20EA))
- Bombardier Inc. DHC-7-103 ([TCDS A20EA](https://openairdocs.org/tcds/A20EA))

## 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.

ST10398SC Sierra Nevada Company, LLC 18635 Jarkey Drive Hagerstown, MD 21742 Part 25 the Federal Aviation Regulations A20EA De Havilland DHC-7 The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

(See Continuation Sheet 3 of 3) 05/27/2004 03/24/2006 12/16/2024 04/04/2005 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3 Installation of a WX-1000 Stormscope in accordance with Master Data List Document Number FJA1340000-MDL, Revision IR, dated February 15, 2005, or later FAA approved revision. FAA approved Airplane Flight Manual Supplement Document Number FJA134000007, Revision IR, dated April 4, 2005, or later FAA approved revision is required.

ST10398SC 12/16/2024 3

ST10398SC 12/16/2024 Certification Basis:

14 CFR Part 25, dated February 1, 1965, plus Amendments 25-1 through 25-31:

25.25; 25.27; 25.301(a), (b), (c); 25.303; 25.305(a); 25.307(a); 25.561(b)(3), (c); 25.601(a);

25.603(a), (b), (c); 25.605(a); 25.607(b); 25.609(a); 25.611; 25.613(a), (b), (c), (d); 25.623(a);

25.625(a), (b), (c) ; 25.771(a); 25.981(a); 25.1301(a), (b), (c), (d); 25.1309; 25.1321; 25.1327;

25.1351(a), (b); 25.1353(a), (b); 25.1357(a), (b), (c); 25.1381; 25.1431; 25.1529; 25.1541;

25.1581; 25.1583; and 25.1585.

-END- 3 3 Add Page

## Every issue (4)

- December 16, 2024: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/43/a4/43a4baf7ff6f292f874edda76c47e44ec9a2d230acce351c71ce4057bc19e482)
- December 16, 2024: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/23/f9/23f95ed7a7005f3600ea46a47c31d4b025faeea39a5e4cdd5fdb1c2c82ce77ce)
- March 24, 2006: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/50/8c/508c35defc0da59457e86a7c5a544c41be3ca164d700ff2abb1369d10922731f)
- April 4, 2005: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/43/8f/438f6b248d51524d652fa2828d654ff78031aa1f85e98f8eabc73acc44faf7a6)

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