# STC ST04647CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: DAN BUZZ & ASSOCIATES LLC, USA
- Description: INSTALL SOLID STATE DIGITAL FLIGHT DATA RECORDER (DFDR) SYSTEM
- Applied: June 22, 2023
- Status date: March 21, 2024
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A49EU](https://openairdocs.org/tcds/A49EU)
- Certificate PDF: https://openairdocs.org/files/sha256/9b/1c/9b1c63898d8b455ff868df279071eb94a30ea3c74cebc8e7a055d82fb813651f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140659865420240325212817.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST04647CH

## ADs that name it (0)

None.

## Approved models (3)

- BAE Systems (Operations) Limited BAe 146-100A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))
- BAE Systems (Operations) Limited BAe 146-200A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))
- BAE Systems (Operations) Limited BAe 146-300A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))

## 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.

ST04647CH Dan Buzz & Associates LLC 1612 Burlington Drive Hickory Corners MI 49060 Part 25 Federal Aviation Regulations A49EU BAE SYSTEMS (Operations) Limited BAe 146 Series (-100/-200/-300) Installation of a Solid State Digital Flight Data Recorder (DFDR) System in accordance with Dan Buzz & Associates LLC, Master Data List Document No. DB2306001 Revision B, dated February 26, 2024, or later FAA approved revision. The aircraft must be maintained in accordance with FAA accepted Instructions for Continued Airworthiness, DB2306005 Revision A, dated November 7, 2023, or later FAA approved revision.

(See Continuation sheet 3 of 3 for continued Description of Type Design Change)

1) The installer must determine whether this design change is compatible with previously approved modifications.

(See Continuation sheet 3 of 3 for continued list of Limitations and Conditions) June 22, 2023 March 21, 2024 Paul (Vu) Nguyen Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Services 3 FOR:

ST04647CH 3

ST04647CH Date of Issuance: March 21, 2024

Description of Type Design Change (Continued):

FAA Approved Airplane Flight Manual Supplement DB2306006 Revision IR approved March 1, 2024, for Digital Flight Data Recorder (DFDR) System, or later FAA approved revision is required on board the modified aircraft.

2) If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission.

Certification Basis:

Based on 14 CFR §§21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the BAe 146 Series aircraft is as follows:

a. The type certification basis for the BAe 146 Series aircraft is shown on TCDS A49EU for parts not changed or not affected by this change.

b. The certification basis for the parts changed or affected by this change since the reference date of application, June 22, 2023, is based on TCDS A49EU and §§ 14 CFR Part 25.

Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the baseline modification was determined to be TCDS A49EU and the following:

14 CFR Part 25 Regulations at the amendment level:

14 CFR §§ 25.301(a)(b)(c) [25-23], 25.303[ 25-23], 25.305(a)(b)(c) [25-23], 25.307(a) [25-23],

25.601 [25-00], 25.603(a)(b)(c) [25-46], 25.605(a) [25-46], 25.607(a)(b)(c) [25-23], 25.609(a)(b) [25-00], 25.611(a) [25-23], 25.613(a)(b)(c) [25-46], 25.625(a)(b) [25-72], 25.1301 [25-00],

25.1309 [25-41], 25.1322 [25-38], 25.1351 (a)(1) [25-41], 25.1353(a)(b) [25-42], 25.1357(a)(c) [25-00], 25.1381(b) [25-00], 25.1431 (a)(c) [25-00] , 25.1459(a)(1-6)(c)(d)(3) [25-41], 25.1501 [25-42], 25.1529 [25-54], 25.1581 [25-42], 25.1583(e) [25-46].

14 CFR Part 26 Regulations at the amendment level:

26.11(c)(1) [26-00] ---------------------------------------------------- END ------------------------------------------------------- 3 3

## Every issue (1)

- March 21, 2024: Issued, Current. [certificate](https://openairdocs.org/files/sha256/9b/1c/9b1c63898d8b455ff868df279071eb94a30ea3c74cebc8e7a055d82fb813651f)

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