# STC SA3955NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Advancetech Aircraft Maintenance, Inc., United States
- Description: Installation of Weldon Model 8163A Auxiliary Fuel Pump in lieu of Dukes Model 4140-00-218 Fuel Pump
- Applied: July 15, 1988
- Status date: October 11, 1988
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- Certificate PDF: https://openairdocs.org/files/sha256/50/ec/50ecddb72c021800b3513a2c0c3cf827b2f9a3efebaf416067cf22484e5e9af8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A6B2BDC2B4F446F586256E4D00510F00.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3955NM

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

## 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 SA3955NM This certificate issued to: Advancetech Aircraft Maintenance, inc.

Purt 3* of the CiViT Air Regulations. *SEE DATA SHEET 1A15 Original Product - Type bertificate Number: 1A15 Make:

Model: Piper PA-24-260 Description of Type Design Change: Installation of Weldon Model 8163A Auxiliary Fuel Pump in lieu of Dukes Model 4140-00-218 Fuel Pump in accordance with Advancetech Aircraft Maintenance Installation Instructions No. AAM-10, N/C, dated October 4, 1988, or later FAA-Approved Revision.

Limitations and Conditions: Limited to Piper Models PA-24-260 with AVCO Lycoming L0540-D4A5 Engines. This approval should not be extended to other specific airplanes 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 airplane.

This certificate and the supporting data which is the basis for approval shall remain in effect untit sunrendered, suspended, verked, in a termination date is otherwise established by the Administrater of the Federal Aviation Administration Date of Application: July 15, 1988 Date visued:

Date of Issuance: October 11, 1988 Date Amended:

FEDERAL AVIATIO By frection of the Staministraler emple Nakagent VOMINISTRATO A Manager, Los Angeles Aircraft Certification Orace 47 FAA FORM 8110-2 (10-68)

## Every issue (1)

- October 11, 1988: Issued, Current. [certificate](https://openairdocs.org/files/sha256/50/ec/50ecddb72c021800b3513a2c0c3cf827b2f9a3efebaf416067cf22484e5e9af8)

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