# STC SA2-70

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of wing tip mounted pitot masts and relocation of airspeed static source.
- Applied: September 20, 1956
- 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/sha256/0a/d5/0ad59820df52ada8d988890c6f81c7a4c514cd16d4427d1555dd2e5125084a3f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8BEC2B6BBE1D35CF85256CC10083D4CB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-70

## 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.

JttmUh gtatt* (Bf of ^ransportatiint - ^eireral ^fatattott Jemima iraiton wpplemetttal Certificate SA2-70 signature Flight Support Corporation, a Delaware Corporation 7511 Lernmon Avenue, Hangar C - .

Dallas, TA 75209 SR407 723 Lockheed ^$&o<£f.- 18 Civil Air Installation of wing tip mounted pitot masts and relocation of airspeed static source in accordance with Drawing List 411000B dated 6/1/64.

1. FAA Approved Airplane Flight Manual Supplement dated 3/13/58 is required for Lockheed Model 18 aircraft certificated under SR407 up to max. G.W. of 19,500 Ibs.

2. This STC is part of the basic Howard 250 and H250 Tri-Gear modifications and the airspeed system is covered in the flight manuals for these models.

3. Compatibility of this modification with other previously approved modifications must be determined by the installer.

20, 1956 January 24, 1957 .•6/1/92; 12/21/98; 8/31/00 20, 1982 Rev. 13 (Signature) _ S. Frances Cox Manager, Special Certification Office, Southwest Region Any attention of tJiJi certificate li puntihsblf by j flne of not exceeding 51,000, or InprJinnnenC not eicwdln? 3 yetri, or both.

FA* Forn 8110-2110-66) Page 1 of Z rosy be fAft ^i

INSTRUCTIONS '[he transfer endorsement below may be used to notify the appropriate FAA Regional Office of the transfer of [his Supplemental Type Ccrrili< .Itc.

The FAA will reissue the r<-rtificaie m (lie name of the transferee and forward it 10 him

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name oj transferee) (Address of transferee) {Nuntbe< and il'ttt j tCify. Stelt. ami ZIP from (Name oj grantor) (Print or type) (Address of grantor) ( Nu>nf>tr and slrttlf (City, Slalt. aa Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC 69-5536**

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0a/d5/0ad59820df52ada8d988890c6f81c7a4c514cd16d4427d1555dd2e5125084a3f)

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