# STC SA4161NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Rockwell Collins Aerospace & Electronics Inc.
Flight Dynmics Division, United States
- Description: Installation of Flight Dynamics, Inc. head up display guidance system.
- Applied: January 21, 2010
- Status date: March 7, 2012
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/e6/05/e6052217adcf3b044dbf2b638bb78fbcf092adacf84fa1862c7354d09748b42f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0D8AD4DE08923C06862579C2007B74EC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4161NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

## 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.

Number SA4161NM

This certificate, issued to Rockwell Collins, Inc.

27300 SW Parkway Ave Wilsonville, OR 97070

Part 25 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A3WE Make: Boeing Model: 727-200

Description of the Type Design Change: Installation of Flight Dynamics (FD) Head Up Display Guidance System, in accordance with the Federal Aviation Administration (FAA) sealed FD Installation Drawing List, 9701-0380, Revision C, dated January 18, 1988, or later FAA-approved revision.

Limitations and Conditions: This change applies to the 727-200 with JT8D-17 and JT8D-17R engines. If any LRU or a sensor input of the HGS fails, the HGS may be disabled by pulling the HGS circuit breakers. Circuit breakers marked NCU and CDU shall be energized while ISA-1 and ISA-2 shall remain de-energized.

Supplemental Type Certificate (STC) SA4163NM (RACAL FMS) and this STC are both needed to form a complete package.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application: January 4, 1988 Date reissued: 6/14/93; 4/16/03; 1/21/10; 3/7/12 Date of issuance: January 25, 1988 Date amended: April 16, 2003

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (2)

- March 7, 2012: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e6/05/e6052217adcf3b044dbf2b638bb78fbcf092adacf84fa1862c7354d09748b42f)
- January 21, 2010: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/db/97/db9763ec175f372a19917309f7d38dd30050c8ca4d2e41df18bb0931482d3b4c)

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