# STC SA2971SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Limco-Airepair, Inc, United States
- Description: Modification of AiResearch P/N's189100 and 189440 air to air precoolers.
- Applied: November 5, 1976
- Status date: August 15, 1997
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/71/d7/71d79203a8621354937b6c438f45f7781ae5fc881292069be588e8b5c5717e2f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/95575B546F98F40185256CC20008CB56.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2971SW

## ADs that name it (0)

None.

## Approved models (14)

- The Boeing Company 747-100 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-100B SUD Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-100B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200C Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-300 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-400 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-400D Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-400F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-8 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-8F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747SP Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747SR Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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.

•Hnilftr *Stnte« fl@f .America pcpartmcnt of "tEranspiirtatum - ^ffefteral jAfttation ^Airmi Olertificate SA2971SW Limco-Airepair, Inc.

d/b/a Airepair International 5304 South Lawton Avenue Tulsa, OK 74107 A20WE Boeing 747 Federal Aviation Modification of Airesearch P/N's 189100 and 189440 air to air precoolers according to Drawings M575-01A dated 11/8/76, revised 3/23/79, M57S-02A dated 9/19/78, M575-03A dated 11/8/76, revised 3/23/79, or later FAA approved revision.

Cort^atibility of this modification with other previously approved modifications must be determined by the installer.

.-November 05, 1976 -April 10, 1979 .•3/18/87, 8/15/97 : 8/4/82 Rev.l (Signature)

f.J. Merrill f' Manager, Special Certification Office Southwest Region --_-_ Any alteration flf this certificate Is punishable by d fine of not exceeding 51,000, or Lfptisowsent not exceeding 3 y*flri. ot both.

FAA For» Poqa 1 of 2 ThiJ cerClficjt* njy bs transferred in accordance with FWf

INSTRUCTIONS: Tha transfer endorsement below may be uaad to notify the appropriate FAA Regional Office of the transfer of the Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number_ to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code;

from (Name of grantor)(Print or type) (Address of grantor) {Number & street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink)

## Every issue (1)

- August 15, 1997: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/71/d7/71d79203a8621354937b6c438f45f7781ae5fc881292069be588e8b5c5717e2f)

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