# STC SA3259NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Lawrence G. Kirkwood, United States
- Description: Increase maximum weight to 1736 pounds.
- Applied: May 13, 1986
- Status date: May 16, 2003
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 1A6](https://openairdocs.org/tcds/1A6)
- Certificate PDF: https://openairdocs.org/files/sha256/c3/d0/c3d06cb67d72b88247b5935e9c377f2e3fa0060a75e94e758ca466e34a27294c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106860903420250220233829.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3259NM

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-22-108 ([TCDS 1A6](https://openairdocs.org/tcds/1A6))

## 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: SA3259NM This certificate issued to: Lawrence G. Kirkwood 1325 Meadowlawn P1 Molalla, Oregon 97038 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meets the airworthiness requirement's of Part 3 of the Civil Air Poegulations. Effective November 1, 1979 as amended by 3-1 thru 3-6.

Original Product Type Cerlificate Number: 1A6E Make: Piper Model: PA-22-108 Description of Type Design Change: Increase maximum weight to 1736 pounds.

Limitations and Conditions: The approval of this change in type design applies to the basic PA-22-108 only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determined by the installer, that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. 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 permission.

This cortificate and the surp Date of Application: May 13, 1986 Date Reissued: February 3, 2003, May 16, 2003 Date of Issuance: June 6, 1986 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature) TOMINISTRATO Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office (Title)

47.

(1) June 6, 1986 (Continuation Sheet) (R) May, 16, 2003 Number: SA3259NM Supplemental Type Certificate ADDENDUM NO. SA3259NM The conditions and limitations of Aircraft Specification No. 1A6 apply except as follows:

This addendum, which is part of Supplemental Type Certificate No. SA3259NM, prescribes conditions and limitations under which the product for which the Supplemental Type Certificate was issued meets the airworthiness requirements of the Civil Air Regulations.

I - Model PA-22-108, 2 PCLM (Normal Category only), as modified per STC SA3259NM C.G. Range (+12.0) to (+16.25) at 1736 Ibs.

(+9.5) to (+16.25) at 1300 Ibs. or less.

Straight line variation between points given Gross Weight 1800 (Ibs. ) 1700 1600 1500 1400 1300 1200 1100 8 9 10 11 12 13 14 15 16 Inches Aft of Datum Maximum Weight 1736 Ibs.

Serial Nos. Eligible 22-8000 and up Required Equipment In addition to the equipment applicable and required by Aircraft Specification No. 1A6, the following equipment must be installed As a result of incorporating STC SA3259NM

1. 150 hp engine in accordance with STC SA847EA.

2. Shock cord ring (Piper P/N 31322-02) must be replaced with Piper P/N 31322-06. (See Note 4)

3. Lawrence G. Kirkwood FAA Approved Airline Flight Manual Supplement dated 6/6/86.

NOTE 1. Reserved NOTE 2. Reserved NOTE 3. Reserved NOTE 4. Shock cord ring is not applicable if conventional landing gear is installed in accordance with STC SA45RM.

## Every issue (1)

- May 16, 2003: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c3/d0/c3d06cb67d72b88247b5935e9c377f2e3fa0060a75e94e758ca466e34a27294c)

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