# STC SA00997CH

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Wipaire Inc, United States
- Description: Installation of Gross Weight Increase Kit No. 10B1-6521, in accordance with Wipaire Inc. Installation Drawing No. 10B1-6521, no revision, dated December 17, 1998, or later FAA approved revisions.
- Applied: February 26, 1998
- Status date: March 1, 2011
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2)
- Certificate PDF: https://openairdocs.org/files/sha256/e3/11/e3116b2f8e6eb60282a554f74a6716685cb3f376b7cdef0a66c73804ba473b1a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4909C07D52D2600A8625786B005AD469.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00997CH

## ADs that name it (0)

None.

## Approved models (4)

- The New Piper Aircraft Inc. PA-18-"150" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18A-"150" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18AS-"150" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18S-"150" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))

## 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.

Part 3 of the Civil Air Regulations. (See Type Certificate Data Sheet No. 1A2 for complete certification basis)

Installation of Gross Weight Increase Kit No. 10B1-6521, in accordance with Wipaire Inc. Installation Drawing No. 10B1-6521, no revision, dated December 17, 1998, or later FAA approved revisions.

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

2. Landplane: Maximum gross weight is limited to 2,000 lbs. for take off and 1,900 lbs. for landing.

3. Floatplane: Maximum gross weight is limited to 2,000 lbs. for take off and landing.

Wipaire Inc.

1700 Henry Avenue - Fleming Field South St. Paul, MN 55075 1A2 Make : Piper Model : PA-18”150”; PA-18A”150”; PA-18S”150”; PA-18AS”150”

Date of application : February 26, 1998

Date of issuance : March 01, 1999

Date amended : March 01, 2011

( Signature) Gregory J. Michalik, Senior Aerospace Engineer Airframe & Administrative Branch Chicago Aircraft Certification Office

( Title)

Original signed by:

Gregory J. Michalik

FAA FORM 8110-2-1(10-69) PAGE 2 of 3 PAGES

Number

FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES

Number SA00997CH Date of Issuance: March 01, 1999 Date Amended: March 01, 2011

4. FAA Approved Airplane Flight Manual Supplement 1, Landplane, dated January 25, 1999, or later FAA approved revision, is required with this installation on Piper Model PA-18”150” or PA-18A”150” modified per STC No. SA682AL (160BHP).

5. FAA Approved Airplane Flight Manual Supplement 2, Landplane, dated January 25, 1999, or later FAA approved revision, is required with this installation on Piper Model PA-18”150”, PA-18A”150”, PA-18S”150”, PA-18AS”150”.

6. FAA Approved Airplane Flight Manual Supplement 3, Floatplane Operation, dated February 28, 2011, or later FAA approved revision, is required with this installation on Piper Model PA-18S”150” or PA-18AS”150” modified per STC No. SA682AL (160BHP) & EDO Model 89-2000 Straight Floats.

7. FAA Approved Airplane Flight Manual Supplement 4, Floatplane Operation, dated February 28, 2011, or later FAA approved revision, is required with this installation on Piper Model PA-18S”150” or PA-18AS”150” with EDO Model 89-2000 Straight Floats.

8. 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.

--END--

## Every issue (1)

- March 1, 2011: Amended, Current. [certificate](https://openairdocs.org/files/sha256/e3/11/e3116b2f8e6eb60282a554f74a6716685cb3f376b7cdef0a66c73804ba473b1a)

---
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.