# STC ST04669CH

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Honeywell Aerospace, United States
- Description: Installation of Honeywell Advanced Communications and Entertainment System (ACES)
- Applied: May 29, 2024
- Status date: September 15, 2026
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/a7/8f/a78fbe4f6c1bae084778ec40a8d8a58fc72bd6b6baf429d36b34c7f6cf38b4cb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128118732920261002212350.0001
- DRS record last changed: October 2, 2026
- Page: https://openairdocs.org/stc/ST04669CH

## ADs that name it (0)

None.

## Approved models (7)

- The Boeing Company 737-600 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-700 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-8 ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-800 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-9 ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-900 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))
- The Boeing Company 737-900ER Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

EDERAL AVIATION Department of Transportation United States of America Federal Aviation Administration Supplemental Type Certificate Number: ST04669CH This certificate issued to: Honeywell Aerospace 21111 N. 19th Ave Phoenix, AZ 85027 Part 25 of the Federal Aviation Regulations.

Make: Boeing Original Product A16WE Model: 737-600 Series; 737-700 Series; 737-800 Type Certificate Number: Series ; 737-900 Series; 737-900ER Series ;

737-8; 737-9 Description of Type Design Change:

Installation of Honeywell Advanced Communications and Entertainment System (ACES) in accordance with Envoy Aerospace Master Data List, Doc. No. E23074-2331-1001, Revision G, dated September 11, 2026, or later FAA approved revisions.

1) This STC is applicable to all serial numbers for this Make-Model-Series.

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

3) FAA Approved Airplane Flight Manual Supplement, Envoy Aerospace Doc. No. E23074-2331-B007, Revision -, approved August 19, 2025, or later FAA approved revision is required on board the modified aircraft.

4) 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.

Date of Application: May 29, 2024 Date Reissued:

Date of Issuance: August 19, 2025 Date Amended: September 15, 2026 By Direction of the Administrator Signature:

Brenda L. Litchfield ODA Administrator Title: Envoy Aerospace, LLC ODA-831240-CE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST04669CH

Date of transfer.

Signature of grantor: _ 115 and 21.101, and the FAA policy for design changes that are identified as not significant in FAA Order 8110.48A, the certification basis for the Boeing 737-600, -700, -800, -900, -900ER Series and 737-8, -9 aircraft is as follows:

a. The type certification basis for the Boeing 737-600, -700, -800, -900, -900ER Series and 737-8, -9 aircraft is shown on TCDS A16WE for parts not changed or affected by the change.

b. This certification basis for parts changed or affected by the change since the reference date of application is based upon 14 CFR Part 25 as amended by Amendment 25-108 as follows:

Applicable to Boeing 137-600.-700.-800.-900.-900ER Series aircraft Applicable regulations at the latest amendment 25-0 through 25-108 § 25.29(a)(b) § 25.611 § 25.1353(a)(b) § 25.301(a)(b)(c) § 25.613(a)(b) § 25.1357(a)(c) § 25.303 § 25.619(a)(b)(c) § 25.1431(a)(b)(c) § 25.305(a) (b)(c) § 25.625(a) § 25.1501(a)(b) § 25.307(a)(d) § 25.787(a)(b) § 25.1529 § 25.561(c) § 25.789(a) § 25.1541(a)(b) § 25.601 § 25.791(a)(b)(e) § 25.1581(a)(b)(d) § 25.603(a)(b)(c) § 25.1301(a) (b)(c)(d) § 25.1583(h) § 25.605(a) § 25.1307(c) § 25.1585(a)(b) § 25.607(a)(b)(c) § 25.1309(b)(d)(g) § 25.609(a)(b) § 25.1351(a) Applicable 14 CFR Part 25 regulations at other amendment levels § 25.571(a) [Amdt 25-72 for 737-600, -700, -800 Series aircraft] § 25.571(a) [Amdt 25-86 for 737-900, -900ER Series aircraft] § 25.571(b) [Amdt 25-86]; § 25.853(a) [Amdt 25-116]; § 25.869(a)(4) [Amdt 25-113]; § 25.981(a) [Amdt 25- 125].

Applicable 14 CFR Part 26 regulations at the latest amendment 26-0 through 26-7 Based on 14 CFR § 21.101(g), applicable provisions of 14 CFR Part 26 are included in the certification basis. For any future 14 CFR Part 26 amendments, the holder of this STC must demonstrate compliance with the applicable sections. As of the latest amendment date of this STC, compliance has been found for the following regulations:

14 CFR § 26.11(c) [Amdt. No. 26-7]; § 26.47(c) [Amdt. No. 26-7].

FAA For 8110-2 (05/24) Page 3 of 4

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST04669CH Date Amended: September 15, 2026 Certification Basis: (continued) Applicable to Boeing 737-8. 737-9 aircraft Applicable regulations at the latest amendment 25-0 through 25-137, 25-141 § 25.29(a)(b) § 25.789(a) § 25.1581(a) (b)(d) § 25.301(a) (b)(c) § 25.791(a) (b)(e) § 25.1583(h) § 25.303 § 25.853(a) § 25.1585(a)(b) § 25.305(a) (b)(c) § 25.869(a) § 25.1701(a)(b) § 25.307(a)(d) § 25.899(a)(1)(b) § 25.1703(a)(b) § 25.561(c) § 25.981(a) § 25.1705(b) § 25.571(a) (b) § 25.1301(a)(1)(2)(3)(4)(b) § 25.1707(a)(b)(e)-(i)(1) § 25.601 § 25.1307(c) § 25.1709(a)(b) § 25.603(a) (b)(c) § 25.1309(b)(d) (e)(t) § 25.1711(a)(c)(d)(e) § 25.605(a) § 25.1351(a) § 25.1713(c) § 25.607(a) (b)(c) § 25.1353(a)(c) § 25.1715 § 25.609(a) (b) § 25.1357 (a)(c) § 25.1717 § 25.611(a) (b) § 25.1360(a)(b) § 25.1719 § 25.613(a) (b) § 25.1431(a) (b)(c)(d) § 25.1721(a)(b)(c) § 25.619(a) (b)(c) § 25.1501(a) (b) § 25.1729 § 25.625(a) § 25.1529 § 25.787 (a) (b) § 25.1541(a)(b) Applicable 14 CFR Part 26 regulations at the latest amendment 26-0 through 26-7 Based on 14 CFR § 21.101(g), applicable provisions of 14 CFR Part 26 are included in the certification basis. For any future 14 CFR Part 26 amendments, the holder of this STC must demonstrate compliance with the applicable sections. As of the latest amendment date of this STC, compliance has been found for the following regulations:

14 CFR § 26.11(c) [Amdt. No. 26-7]; § 26.47(c) [Amdt. No. 26-7].

## Every issue (2)

- September 15, 2026: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a7/8f/a78fbe4f6c1bae084778ec40a8d8a58fc72bd6b6baf429d36b34c7f6cf38b4cb)
- August 19, 2025: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/c8/0f/c80fa936b47425d1c2e3ebab09cc8764bcffc9b2241f94f91d6120b393786bb2)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
