# STC ST09779AC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: United Airlines Inc, United States
- Description: 787-9 Red Text Exit Sign Installation
- Applied: June 25, 2014
- Status date: October 24, 2017
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS T00021SE](https://openairdocs.org/tcds/T00021SE)
- Certificate PDF: https://openairdocs.org/files/sha256/3c/89/3c8922d372b4fb3e80d1e0d83baa44bcd6d0c2926b05e046f888bd26665a83d1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B96A5A3323946F518625822D004DAEA0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST09779AC

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 787-9 ([TCDS T00021SE](https://openairdocs.org/tcds/T00021SE))

## 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.

FAA Form 8110-2 (5/14) Page 1 of 3

Number: ST09779AC This certificate issued to: United Airlines 600 Jefferson St.

Houston, TX 77002 Part 25 of the Federal Aviation Regulations Original Product – Type Certificate Number: Make: The Boeing Company T00021SE Model: 787-9 Series Description of Type Design Change:

787-9 Red Text Exit Sign Installation in accordance with United Airlines Master Drawing List 3350DA13927, dated August 14, 2014 or later FAA approved revision.

Instructions for Continued Airworthiness, Document Number 3350R01256C Revision A, dated February 6, 2015, or later FAA accepted revision is required for this installation. No AFM Supplement or EWIS ICA is required for this modification.

1) The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft.

2) 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.

Date of Application: June 25, 2014 Date Reissued: February 1, 2016; October 24, 2017 Date of Issuance: September 14, 2014 Date Amended:

By Direction of the Administrator Signature Title Patrick Ashton, STC Administrator United Airlines Organization Designation Authorization

FAA Form 8110-2 (5/14) Page 2 of 3

Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: ST09779AC To (Name and address of transferee)

From (Name and address of grantor)

FAA Form 8110-2 (5/14) Page 3 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09779AC

Certification Basis:

Based on 14 CFR § 21.115 and § 21.101, and the FAA policy for design changes that are not significant in FAA Order 8110.48, the certification basis for this modification is as follows:

a. The type certification basis for parts not changed or not affected by the change is shown in TCDS T00021SE.

b. The certification basis for parts changed or affected by this modification since the reference application date June 25, 2014, is based upon the type certification basis shown in TCDS T00021SE with no exceptions.

--END--

FAA Form 8110-2 (5/14) Page 4 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09779AC

FAA Form 8110-2 (5/14) Page 5 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09779AC

FAA Form 8110-2 (5/14) Page 6 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09779AC

## Every issue (2)

- October 24, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/3c/89/3c8922d372b4fb3e80d1e0d83baa44bcd6d0c2926b05e046f888bd26665a83d1)
- September 8, 2014: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/50/c4/50c4ce9cd2c1f0cb90c2665016ac24198834a8ee395eacf60c753ebe2577cd85)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.