# STC SA2-589

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Installation of wing tip mounted pitot mats and relocation of airspeed static source.
- Applied: July 3, 1958
- Status date: December 1, 1999
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS LTC AL-13](https://openairdocs.org/tcds/LTC%20AL-13)
- Certificate PDF: https://openairdocs.org/files/sha256/5a/2a/5a2a605261b468a9b65f912fb18ef42f62b8de3183056d4c9111718a6fd087ed
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FC434A21D85B2B3C85256CC10083D4B3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2-589

## ADs that name it (0)

None.

## Approved models (1)

- Air Trading Corporation Navy PV-1 ([TCDS LTC AL-13](https://openairdocs.org/tcds/LTC%20AL-13))

## 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.

jHniteft ^States of ^transportation - ,3feaeral ^fiiattim (Kerttftcate SA2-589 Sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 Civil Air Lockheed Aircraft Corp.

Installation of wing tip mounted pitot masts and relocation of airspeed static source in accordance with Howard Aero, Inc. Drawing Ho. 1141 dated 3/6/56 with "D" Change, dated 12/19/58 and Drawing List per Engineering Report 8, Pages 2 and 2.1 dated 12/23/58.

Howard Aero, Inc. Supplement to Pitot's Flight Operating Instructions Technical Order Ho. 01-55EC-1 for Lockheed PV-1 Aircraft, required with this modification.

.- July 03, 1958 September 09, 1958 December 1, 1999 May 8, 1967 Revision 4 Michele M. Owsley, Manager Airplane Certification Office", Southwest Region (Title) Any aJteraUon of t/iij Js punishable by * fine of not exceeding 51,000, of lafpf J jonjnenc not exceeding 3 years f Of both.

FAft Form 6110-2(10-66) Page 1 of 2 TMj ctrtlflcfte n*y Be transferred in accordance ulth FM 21.tt.

INSTRUCTIONS. I he transfer endorsemcm bduw may he used Lo nolily ihc appropriale l-"AA Regional Office of the transfer of ihis Suppli-mrntal Type Orulirate Tin- FAA will rcissui' ihr rcrtifiralc in ihe name- of [lie iransfercc and Ibrward 11 [o him

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name oj transferee) (Address t/f transferee) tr an/I i (City. Stall, nad Z.IP <adfl from (Name ojgrantor) (Print or type) (Address of grantor) umbrt and Hiert) (City, Slalr. and ZIP todi) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC 69-5536**

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/5a/2a/5a2a605261b468a9b65f912fb18ef42f62b8de3183056d4c9111718a6fd087ed)

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