# STC SA537AL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aircraft Innovations, LLC
- Description: Installation of Day & Night 4-1 fiberglass propeller spinner.
- Status date: September 11, 2009
- Data sheets: A-780, A-780
- Certificate PDF: https://openairdocs.org/files/sha256/06/50/06503c30325d3305ddaef8e7174bc3ed5b826a4c7989d284698bd6a15d6d1d73
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/57C080032A03E49986257639005D6B23.0001
- Page: https://openairdocs.org/stc/SA537AL

## ADs that name it

None.

## Approved models (2)

- FS 2003 Corp. PA-12 (TCDS A-780)
- FS 2003 Corp. PA-12S (TCDS A-780)

## 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.

This certificate issued to Aircraft Innovations, LLC PO Box 110164 Anchorage, AK 99511

Part 3 of the Civil Air Regulations.

Original Product — Type Certificate Number: 780 Make: Piper Model: PA-12 and PA-12S

Description of Type Design Change: Installation of Day & Night, Inc. 4-1fiberglass propeller spinner which is manufactured and installed per sheet 1 of Day & Night, Inc. sealed drawing number 4-1 and pages 1 through 6 of Day & Night, Inc. sealed report “Manufacturing & Installation Instructions for Day & Night, Inc. 4-1 Fiberglass Spinner” dated January 14, 1975.

1. The approval of this change in type design applies basically to Piper Model PA-12 and PA-12S airplanes only.

Compatibility of this design change with previously approved modifications must be determined by the installer.

This determination should include consideration of significant changes in weight distribution, such as an increase in the fixed disposable weight in the fuselage.

2. The Day & Night, Inc. 4-1 propeller spinner is approved for installation on only those PA-12 and PA-12S airplanes on which the standard Piper metal propeller spinner (Piper part number 14422-00) is approved.

3. 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: May 24, 1974 Date reissued : May 7, 1979; August 17, 2009;

September 11, 2009

Date of issuance: January 15, 1975 Date amended : September 11, 2009

( Signature) David D. Swartz Acting Manager, Anchorage Aircraft Certification Office

( Title)

## Every issue (2)

- September 11, 2009: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/06/50/06503c30325d3305ddaef8e7174bc3ed5b826a4c7989d284698bd6a15d6d1d73)
- May 7, 1979: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/d0/85/d085c1338d1e982acb95eee17f1970f4b0b6f59c108b6ec8aac04fbe79121c4d)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.