# STC SA3854NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Collins Aviation Service, United States
- Description: Replace the two existing front seats with Beechcraft A36TC front seats and install A36TC rear seats and tracks
- Applied: May 11, 1987
- Status date: July 7, 1987
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/80/33/8033e75dc98691b23d82f13d7de414bb4846a9c081ef534cff396ee78de17458
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/59DAA6B65DC2FB6A86257A0900580A37.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3854NM

## ADs that name it (0)

None.

## Approved models (1)

- Hawker Beechcraft Corporation 35-A33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

## What the certificate says

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

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA3854NM This certificate issued to: Collins Aviation Service Part 3 of the CIVIL AIT regulations: as amended to May 15, 1956 and amendment 3-8.

Original Product - Type Certificate Lumber: 3A15 Make Beech Model: 35-A33 Description of Type Design Change:

Replace the two existing front seats with Beechcraft A36TC front seats and install A36TC rear seats and tracks in accordance with Collins Aviation Inc. Report No. 87- 1026; sketch No. 1; photographs No. 1 through 7; al1 dated June 3, 1987; and Beech Model 33 Parts Catalog pages 2-57 through 2-60A.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Beech 35-A33, Serial No. CD- 335 only. A copy of this Certificate, Continuation Sheet and Airplane Flight Manual Supplement shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: May 11, 1987 Date Reissued:

Date of Issuance: JUly 7, 1987 Date Amended:

FEDERAL ANTATION By Direction of the Administrator TRAINIST RAIDE acting Manager, Seattl Aircraft Certification Office (Title )

47.

**FAA FORM B110-2 (10-68)**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number 5A385411 Limitations and Conditions: (Continued) Weight & C.G.:

The Center of gravity of the rear seats is 3 inches further aft than the original canvas seats.

Number of Seats: 4 (2 at +85, 2 at +121) Required Placards:

The following Placard shall be installed near the rear seats and within sight of the passengers.

**SEATS MUST BE UPRIGHT DURING**

**TAKEOFF AND LANDING**

- END -

**FAA FORM 8110-2-1 (10-69)**

**PAGE OF PAGES**

## Every issue (1)

- July 7, 1987: Issued, Current. [certificate](https://openairdocs.org/files/sha256/80/33/8033e75dc98691b23d82f13d7de414bb4846a9c081ef534cff396ee78de17458)

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