# STC SA4215NM-D

- Type: Supplemental type certificate
- Status: Historical, Surrendered
- Holder: Hollingsead International, United States
- Description: Reconfiguration of interior seating.
- Applied: April 14, 1993
- Status date: June 19, 2009
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 5, Part 21, Part 21, Part 21, Part 21, Part 21, Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/76/18/761878718982f9043f9298c3862010e7a2ea7b3cfa2ee26bc5d74c61c7febcb7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F38406542EC4BA8686257608006C6017.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4215NM-D

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-100 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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: SA4215NM-D Certificate

SURRENDERED This certificate issued to: Hollingsead International 2226 Goodyear Avenue on 6-19-09 Ventura, California 93003 Certifies that the change in the type design for the following product with the limitations and conditions therofor as specified hereon meets the airworthiness requirement's of Part 25 of the Federal Aviation Regulations.

Original Product Type Certificate Number A20WE Make: BOEING Model: 747-100 Description of Type Design Change: Reconfiguration of interior seating in accordance with Air Canada Airlines documentation:

• 25-31359 Rework; PSU's, Spacer Panels, Special Panels, and Tie Bars (8FS/460Y = 468):

Revision A, dated April 20, 1993

• 05-30271 Seat Layout; 8F(U/D), 460Y(M/D), 468 Total, Kalitta: Revision B dated April 20, 1993 Limitations and Conditions: This approval should not be incorporated on any certificated product of this model on which other approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those previously incorporated modifications will not introduce any adverse effect upon the airworthiness of the certificated product. No findings of compliance with FAR 25.853 were required by this modification. A copy of this STC must be included in the permanent records of the modified aircraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of Application: April 14, 1993 Date Reissued: April 12, 1995; December 16, 1996;

April 1, 1998; August 1, 2005; July 12, 2006 Date of Issuance: April 20, 1993 Date Amended:

By Direction of the Administrator Carlta K. Woo (Signature) TOWNSTRAD Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office (Title)

TRANSFER ENDORSEMENT Transfer the ownership of the Supplemental Type Certificate Number to (Name of transferee) (Address of transfer) (Number and street) (City, State, and Zip code) from (Name of grantor) (Print or type (Address of grantor) (Number and street) (City, State, and Zip code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (3)

- June 19, 2009: Surrendered, Historical. [certificate](https://openairdocs.org/files/sha256/76/18/761878718982f9043f9298c3862010e7a2ea7b3cfa2ee26bc5d74c61c7febcb7)
- July 12, 2006: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/c2/d5/c2d54c2c7545baf4227425a64bc64a8d02d85ab535f1cf13e3ad5aa1c173eb6b)
- August 1, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/8e/73/8e7319ccf3ffa122d2d4bbf98d92b86b6bdd4e6252fc0504488ddfd6c64453a7)

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