# STC SA12506NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Sterling Helicopter, United States
- Description: Installation of de-ice heaters (also known as horizontal tail heaters) and associated parts on the left hand and right hand of the horizontal stabilizer
- Applied: May 2, 2025
- Status date: September 17, 2026
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Data sheets: [TCDS A25SO](https://openairdocs.org/tcds/A25SO)
- Certificate PDF: https://openairdocs.org/files/sha256/e5/12/e512a480129392f097a14e12dca7ec2c1fed8182b56920f3daabd768f40a20c7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162676280220260930154345.0001
- DRS record last changed: September 30, 2026
- Page: https://openairdocs.org/stc/SA12506NY

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-46-500TP ([TCDS A25SO](https://openairdocs.org/tcds/A25SO))

## 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.

Number   This certificate issued to:

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Original Product 7\SH&HUWLILFDWH1XPEHU Make:

VHHFRQWLQXDWLRQVKHHW IRUDGGLWLRQDOGDWHV By Direction of the Administrator Signature:

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

(Continued on page 3 of 3) 05/02/2025 09/17/2026 3 Installation of de-ice heaters (also known as horizontal tail heaters) and associated parts on the left hand and right hand of the horizontal stabilizer on the Piper PA-46-500TP will be in accordance with Sterling Helicopter Master Drawing List, Document No. ST-11276-02 Rev. B, dated July 30, 2026, or later FAA approved revisions. (Continued on page 3 of 3) IRU

Number   (IIHFWLYH'DWH I Transferr Endorsementt Transfer the ownership of Supplemental Type Certificate Number:

Too (Name and address of transferee):

Date oI transfer:

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United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate  (Continuation Sheet) Number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escription of Design Change (continued):

For Instruction for Continued Airworthiness (ICA), Sterling Helicopter Document No.

ST11276-03, Rev A, dated August 5, 2026, or later FAA approved revisions.

Aircraft modified by this STC must be operated in accordance with the Sterling Helicopter AFMS ST-11276-11 Rev IR, dated September 15, 2026, or later FAA approved revisions.

2. 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.

3. This STC is applicable to all serial numbers for this Make-Model.

Certification Basis:

Based on 14 CFR §21.101 and 21.115, and the FAA policy for changed aeronautical products in FAA Order 8110.48A, the type certification basis for this modification are as follows:

1. For parts not changed or not affected by this modification see the certification basis for the Piper PA-46-500TP on TCDS A25SO.

2. For parts changed or affected by this modification since the date of application, the certification basis is also the certification basis for the Piper PA-46-500TP on TCDS A25SO.

--------------------------END--------------------------- 33

## Every issue (1)

- September 17, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e5/12/e512a480129392f097a14e12dca7ec2c1fed8182b56920f3daabd768f40a20c7)

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