# STC SA04797NY

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Avcon Industries Inc., United States
- Description: Atmospheric Research Aircraft Modification
- Applied: April 20, 2022
- Status date: July 24, 2025
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Data sheets: [TCDS A24CE](https://openairdocs.org/tcds/A24CE)
- Certificate PDF: https://openairdocs.org/files/sha256/28/07/28071ca4dee488953b0e82348d5281a6cce1cff94e76b2be193aab6e37c138ae
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198165712820250821160507.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA04797NY

## ADs that name it (0)

None.

## Approved models (1)

- Textron Aviation Inc. B300 ([TCDS A24CE](https://openairdocs.org/tcds/A24CE))

## 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.

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

therefore as specified hereon meets the airworthiness requirements of of BB__ Original Product 7\SH&HUWLILFDWH1XPEHU Make:

VHHFRQWLQXDWLRQVKHHW IRUDGGLWLRQDOGDWHV By Direction of the Administrator Signature:

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714 N. Oliver Road Newton, KS 67114 Certifies that the change in the type design for the following product with the limitations and conditions 23 Title 14 Code of Federal Regulations BB_.

A24CE Textron Aviation Inc.

B300 Atmospheric Research Aircraft Modification in accordance with (1) Master Data List (MDL) B350-MDL-0102, rev IR, dated April 11, 2025, or later FAA approved revision. (2) Instructions for Continued Airworthiness (ICA) 303-801, rev IR, dated January 12, 2025, or later FAA accepted revision, shall be made available to the operator at the time of installation and be incorporated into the operator's maintenance program. (3) Aircraft Flight Manual Supplement (AFMS) 297-190, Rev IR, dated April 11, 2025, or later FAA approved revision. The AFMS is required and must be carried during all flights.

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

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

(Limitations and Conditions Continued on Page 3 of 4) 4/20/22 4/14/25 Rob Capezutto Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 4 for 7/24/25 Part

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number  I Transferr Endorsementt Transfer the ownership of Supplemental Type Certificate Number:

Too (Name and address of transferee):

Date oI transfer:

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(Continuation Sheet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imitations and Conditions (continued from Page 1 of 4):

(3) This STC is applicable to all serial numbers for the Make: Textron Aviation Inc., Model:

B300 with the following Prerequisites:

(a) Blackhawk PT6A-67A engines with MT 5-blade propeller MTV-27-1-N-C-F-RP) / CFR260-65b, large gear doors, and Centex ST190 saddle tanks per STC SA02726LA.

(b) Increased gross weight to 16,500 lbs. per Textron Aviation kit 130-4030.

(c) Dual aft strakes per Textron Aviation kit 130-4404.

(d) Dual NADIR camera ports per STC SA2429CE.

(e) 400-amp starter/generators with mission power bus per STC SA11298DS.

(f) Becker audio system per STC SA04190NY.

(g) Wing tip hard points per STC SA01965WI.

(h) Underwing wiring tunnels and wing tip research pylons per STC SA04215NY.

(i) Garmin G1000 with GFC 700 per STC SA1535WI-D.

(j) Maximum zero fuel weight increase per STC SA04209NY.

(4) With this STC, the aircraft is eligible for multiple airworthiness certification per Title 14 CFR 21.187 in Commuter and Restricted Category by the limitations specified by the AFMS for Aerial Surveying. The following regulations are inappropriate for the Restricted Category: 14 CFR Part 23.561(a) amdt 23ဨ34, 23.775(a)(e) amdt 23ဨ7, 23.785(g) amdt 23ဨ34, 23.807(d)(1)(i) amdt 23ဨ34, 23.831 amdt 23ဨ34, 23.841(a) amdt 23ဨ17, 23.853(a) amdt 23ဨ34, 23.863 amdt 23ဨ 34, 23.1353 amdt 23ဨ21, 23.1359(a)(c) amdt 23ဨ49, 23.1365(b) amdt 23ဨ49, 23.1438 amdt 23ဨ 20, 23.1461 amdt 23ဨ20.

(5) This approval is limited to only the installation of the Configurations listed within the MDL.

The FAA has not certified the Sensor/Stores for which these provisions are intended. Additional FAA approval to install this equipment is required. The FAA must evaluate the installation to ensure it complies with the applicable airworthiness standards.

(6) Aircraft is required to be Operated in Restricted Category per Table 1 (Certification Category) of the Conversation Procedure 07007201 rev A, or later, in accordance with FAA Order 8110.56.

34 Number SA04749NY (IIHFWLYH'DWH 07/24/25

(Continuation Sheet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ertification 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 Textron, Model B300 airplane is as follows:

(1) The type certification basis for Textron, Model B300 airplane is shown on the TCDS A24CE for parts not changed or not affected by the change.

(2) The certification basis for parts changed or affected by the change since the reference date of application April 20, 2022, is based upon part 23 as amended by Amendment 23-34 with the exception of those above amendment 23-34, listed below.

Regulations at later amendment than 23-34:

14 CFR Part 23.49(a)(2)(b)(c)(e)(f) amdt 23-50, 23.201(a)(b)(c)(d)(e)(1)(2)(4)(5)(6) amdt 23-50, 23.203(a)(b)(c)(1)(2)(4)(5)(6) amdt 23-50, 23.207(a)(b)(d)(e) amdt 23-50, 23.445(a)(b)

(c) amdt 23-42, 23.607 amdt 23-48, 23.611 amdt 23-48, 23.613(a)(b)(c)(d)(e) amdt 23-45,

23.1309(a)(1)(i)(ii)(2)(i)(ii)(3)(4)(b)(1)(c)(1)(2) amdt 23-49, 23.1322(b)(c)(d) amdt 23-43,

23.1351(a)(b)(1)(2)(4)(c)(3)(f) amdt 23-49, 23.1357(a)(b)(c) amdt 23-43, 23.1359(a) amdt 23-49, 23.1365(a)(b)(c)(d)(e)(f) amdt 23-49, 23.1431(a)(b) amdt 23-49, 23.1525 amdt 23-45,

23.1581(a)(b)(1)(3)(c)(d)(f) amdt 23-50, 23.1583(a)(1)(2)(3)(i)(iii)(h)(j)(k)(l)(m) amdt 23-62,

23.1585(a)(b)(c)(d)(e)(f)(g)(h)(i)(j) amdt 23-62.

(3) 14 CFR Part 36 through amendment 36-31.

--- END --- 44 Number SA04749NY (IIHFWLYH'DWH 07/24/25

## Every issue (1)

- July 24, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/28/07/28071ca4dee488953b0e82348d5281a6cce1cff94e76b2be193aab6e37c138ae)

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