# STC ST00228BO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Pratt & Whitney, United States
- Description: Installation of Pratt & Whitney (P&W) JT8D-200 Series Engines incorporating the Improved Forward Fan Case.
- Applied: January 20, 2006
- Status date: March 3, 2006
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/7b/5a/7b5a9a58d3e0f326ccdb3477abc0559991af4134e8cab9ffa7aa83f1ffaeca9d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B632335DE066B3F9862571BC004ADE77.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00228BO

## ADs that name it (0)

None.

## Approved models (5)

- McDonnell Douglas Corporation DC-9-81 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-82 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-83 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-87 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation MD-88 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## 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.

FAA Form 8110-2(10-68) Page 1 of 2 Number ST00228BO This Certificate issued to Pratt & Whitney 400 Main Street East Hartford, CT 06108

Part 25 of the Federal Aviation Regulations.

Original Product Type Certificate Number : A6WE Make : The Boeing Company (formerly McDonnell Douglas Corporation)

Model : DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87) and MD-88

Installation of Pratt & Whitney (P&W) JT8D-200 Series Engines incorporating the Improved Forward Fan Case as described in P&W Service Bulletin (SB) JT8D 6478, dated March 3, 2006.

1. Aircraft weight and balance must be adjusted to account for the revised engine weight and balance data as provided in P&W SB JT8D 6478, dated March 3, 2006.

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 : January 20, 2006

Date of issuance : March 3, 2006 Date reissued :

( Signature) Robert G. Mann Manager Boston Aircraft Certification Office

(Title)

United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number ST00228BO

FAA Form 8110-2-1(10-69) Page 2 of 2

Limitations and Conditions (Cont’d):

2. Approval of this change in type design applies to the aircraft models specified. This approval should not be extended to aircraft on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and any other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of the aircraft. Aircraft incorporating this Supplemental Type Certificate (STC) must be operated in accordance with the limitations and procedures established in Type Certificate (TC) No. A6WE and any other applicable FAA-approved documents.

3. Supplemental Instructions for Continued Airworthiness are not required.

--End--

## Every issue (1)

- March 3, 2006: Issued, Current. [certificate](https://openairdocs.org/files/sha256/7b/5a/7b5a9a58d3e0f326ccdb3477abc0559991af4134e8cab9ffa7aa83f1ffaeca9d)

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