# STC SA2-614

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of rudder spring tabs and fuselage saddle, horizontal stabilizer incidence inc to 1 degree; flap tracks cut off, flap travel reduced to 51% of original travel
- Applied: August 13, 1958
- Status date: August 31, 2000
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-723](https://openairdocs.org/tcds/A-723)
- Certificate PDF: https://openairdocs.org/files/sha256/23/61/23616e6e28c3fd7a46ef31db2514d9eae37c1cf46a4d49a5223d0753bdde8348
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/35E124AD8D29B9F285256CC10083D4B9.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-614

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Martin Aeronautics Company 18 ([TCDS A-723](https://openairdocs.org/tcds/A-723))

## 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.

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- Jlfrberal (A0mmtstratum (Eerttfttate SA2-614 signature Flight Support Corporation, a Delaware Corporation 7511 Lemrnon Avenue, Hangar C Dallas, TX 75209 Civil Air 723 Lockheed ^&oe^- 18 (See continuation sheet 3 of 3) Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Lockheed Model 18, Serial No, 2444, and Serial Ho. 2306, only.

asu/Me . August 13, 1958 .- August 14, 1958 ; 12/21/98; 8/31/00 28, 1982 Rev. 4 (Signature) Frances Cox Manager, Special Certification Office, Southwest Region Any 4j£erdClcn of cftiff certificate Js punli/iabJe ty * fin* of not exceeding JJ.QQfl, or IflJprJconvent net exceedJn^1 3 years, or FAA Pom 9110-2(10-66) Page 1 of 3 certificate may te transferred i^ AccQE<Jtnee with FAfl 2J

•Kiritth gtatcs ,ppparlmmt of transportation - ,3f corral (Afaiatiott fAhmintBtratton (Esrtt fixate ((Hontinuatton SA2-614 Date of Issuance: August 14, 1958 Date Amended: May 28, 1982 Reissuance Date: August 31, 2000 The following combinations of previously approved modifications {or later FAA approved revision) are eligible on Lockheed 18, N666MR, N105G S/H 2444, and N106G S/N 2308 only:

1. Installation of rudder spring tabs and fuselage saddle; horizontal stabilizer incidence increased to 1°; flap tracks cut off, and flap travel reduced to 51% of original travel in accordance with PacAero STC #SA4-366.

2. Installation of Lear (PacAero} airspeed system in accordance with Lear Dwg.

Ho. 603966.

3. Installation of revised elevator and tail cone in accordance with DAS STC 3A2-327.

Note: PacAero pertinent CAA approved revisions to National Airlines' Lockheed 18 Flight Manual which showed increased stall speeds, revised performance, and Lear (PacAero) airspeed system, were provided.

-END-

FAA Form 8110-2-1(10-691 ?ag* 3 of 3 This certificate say be^transferred in *cojrd^s *1 Cft FAR 21.47.

INSTRUCTIONS. Th*1 iransfer endorsement lx*low may be used 10 notify ihe appropriate FAA Regional Office of the franslrr uf this Supplr-mrnUiJ Typf OrtihrJfe.

Fhf KAA will reissue thf rt-nificdlf in ihr name ot ihr iran^frrte and forward it lo him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number „ to (Name of transferee) (Address oj transferee) (Numbei and t <City, Stair, and QP codf) from (Name of grantor) (Print or type) (Address of grantor) (.Wutnbrr anil slrtflf (Cify, SlaU, and ?JP i Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC SO-S536**

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/23/61/23616e6e28c3fd7a46ef31db2514d9eae37c1cf46a4d49a5223d0753bdde8348)

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