# STC SA2538CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Learjet Inc, United States
- Description: Installation of Collins ADI-84A/HSI-70 flight instrument system.
- Applied: September 14, 1989
- Status date: June 22, 1990
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- Certificate PDF: https://openairdocs.org/files/sha256/7b/fa/7bfadc53a05b2a63be51c8f984492273e8aed61b8a842d15b0142ab1004fb9b3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A051393207DAA11185256CC200015F82.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2538CE

## ADs that name it (0)

None.

## Approved models (4)

- Learjet Inc. Learjet 35 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 35A (C-21A) ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2538CE This certificate issued to: Learjet INC.

8220 West Harry Street P. O. Box 7707 Purt 25 effective February 1, 1965, as amended by 25-2, 25-4, « WhFederal Aviati‹ 25-

•Fropulationa special conditions as delineated in TCDS AlOCE. 25-18, and paragraph 25.571(d) of Amendment 25-10 with Original Product -Type burtificute. Jamber: ALOCE Make: Learjet Muld: 35, 35A, 36, and 36A Description of Type Design Change: Installation of Collins ADI-84A/HSI-70 Flight Instrument System in accordance with Learjet Corporation Master Drawing List (MDL) T100061, revision none, or later FAA approved revisions.

Jimilalin and undild This approval should not be extended to other specific airplanes of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

Date of Application: September 14, 1989 Date Reissued: June 22, 1990 September 15, 1989 Date Amended:

AVIATION By Direction of the Administrator (Signature ) "VISTRATION Wichita Aircraft Certification Offic Lawrence A. Herron, Manager ( Title) 1 thus vertificate is punishable by a fine of not exceeding S1,000, or imprisonment not exceeding 3 years, or both.

This certificate may be transferred in accordance with FAR 21.A7

## Every issue (1)

- June 22, 1990: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/7b/fa/7bfadc53a05b2a63be51c8f984492273e8aed61b8a842d15b0142ab1004fb9b3)

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