# STC SA5686SW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Hawker Beechcraft Services Inc. - Description: Installation of dual Collins electronic horizontal situation display EHSI-74. - Status date: May 14, 2007 - Data sheets: A12EA, A12EA, A12EA - Certificate PDF: https://openairdocs.org/files/sha256/3e/1a/3e1a65d850f34fd0b60a4d4a436a6d2d7fbbd1c99e953075e425359aa1e7d7eb - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/55CE91D5F3B8D2E2862572DE004CCA5D.0001 - Page: https://openairdocs.org/stc/SA5686SW ## ADs that name it None. ## Approved models (3) - Gulfstream Aerospace Corporation G-1159 (TCDS A12EA) - Gulfstream Aerospace Corporation G-1159A (TCDS A12EA) - Gulfstream Aerospace Corporation G-1159B (TCDS A12EA) ## 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. Part 4b of the Civil Air Regulations and Part 25 of the Federal Aviation Regulations. Installation of Dual Collins Electronic Horizontal Situation Display EHSI-74 in accordance with Drawing List No. 1772, Revision C dated March 29, 1984, or later FAA approved revision. FAA Approved Airplane Flight Manual Supplement dated March 29, 1984, is required. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. Hawker Beechcraft Services, Inc. 8402 Nelms Houston, TX 77061 A12EA Make : Gulfstream American Model : G-1159, G-1159A, G1159-B Date of application : January 10, 1984 Date of issuance : March 29, 1984 Date reissued : 5/24/89; 5/14/07 ( Signature) S. Frances Cox, Manager Special Certification Office, Southwest Region ( Title) FAA Form 8110-2-1(10-69) Page 2 of 2 ## Every issue (1) - May 14, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/3e/1a/3e1a65d850f34fd0b60a4d4a436a6d2d7fbbd1c99e953075e425359aa1e7d7eb) --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.