Official installation and certification resources

Cessna 172 document library

Select the applicable Cessna 172 installation configuration, then access the matching airframe manual, parts catalog, and common FAA records.

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Source verified July 31, 2026Hosted by TrioAutopilots.com · Official revisions audited every 30 days

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Cessna 172

All documents

Create a configuration-specific document setUse the aircraft profile above to exclude manuals and parts catalogs that do not apply.

Showing 38 applicable documents. Filters never remove access to the complete library.

PDF
Installation InstructionsTrio Avionics, Inc.

Cessna 170B, Cessna 172, Cessna 175 Airframe Installation Manual

Document 1006002Revision K
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PDF
Installation InstructionsTrio Avionics, Inc.

Navomatic Airframe Installation Manual

Document 1006006Revision D
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PDF
Illustrated Parts CatalogsThe STC Group LLC

Cessna 170B, Cessna 172, Cessna 175 Illustrated Parts Catalog

Document 1006901Revision I
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PDF
Illustrated Parts CatalogsThe STC Group LLC

Navomatic Illustrated Parts Catalog

Document 1006905Revision E
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PDF
Certification and AirworthinessTrio Avionics, Inc.

AFMS

Document L-1006-01Revision D
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PDF
Certification and AirworthinessThe STC Group LLC

FAA Approved Model List – SA04230CH

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PDF
Certification and AirworthinessTrio Avionics, Inc.

FAA Supplemental Type Certificate SA04230CH

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PDF
Certification and AirworthinessTrio Avionics, Inc.

ICA

Document L-1006-02Revision M
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PDF
User Information and Common ManualsTrio Avionics, Inc.

Avionics Addendum

Document E-1006-12Revision E
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PDF
User Information and Common ManualsTrio Avionics, Inc.

Certified Pro Pilot Operating Manual

Document 13200013
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PDF
User Information and Common ManualsTrio Avionics, Inc.

EFIS Installation Manual

Document 1006100Revision B
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PDF
User Information and Common ManualsTrio Avionics, Inc.

Trio Functionality with EFIS Systems

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PDF
Maintenance and Installation DataTrio Avionics, Inc.

Compatibility List

Document 1006001Revision F
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PDF
Maintenance and Installation DataTrio Avionics, Inc.

FAA Form 337 Installation Example

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PDF
Maintenance and Installation DataTrio Avionics, Inc.

Pitot and Static Connections Reference

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PDF
Maintenance and Installation DataTrio Avionics, Inc.

Trio Pro Pilot Maintenance Troubleshooting Guide

Revision A
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PDF
Maintenance and Installation DataTrio Avionics, Inc.

Weight and Balance Example

Document 2023
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PDF
Maintenance and Installation DataTrio Avionics, Inc.

Weight and Balance Worksheet

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PDF
Maintenance and Installation DataTrio Avionics, Inc.

Yoke-Mounted Switch Installation Examples

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PNG
WiringTrio Avionics, Inc.

Audio Panel Compatibility Reference

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PDF
WiringTrio Avionics, Inc.

External Airdata Input Wiring Diagram

Document 250912
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PNG
WiringTrio Avionics, Inc.

Panel-Mount GPS Wiring Diagram

Document 4444
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PDF
WiringTrio Avionics, Inc.

Pro Pilot System Wiring Diagram

Document 41300021Revision 21
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PDF
WiringTrio Avionics, Inc.

Pro Pilot System Wiring Diagram – Earlier Reference

Document 41300011
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PDF
TestsTrio Avionics, Inc.

EFIS Data Test

Document 9260
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PDF
TestsTrio Avionics, Inc.

Post Installation Flight Test

Document F-1006-43Revision E
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PDF
Gain SettingsTrio Avionics, Inc.

HNAV Gain-Setting Information

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PDF
Gain SettingsTrio Avionics, Inc.

LNAV Gain-Setting Flow

Document 251013
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PDF
Gain SettingsTrio Avionics, Inc.

Servo Gain-Setting Flow Chart

Document 180308
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PDF
Gain SettingsTrio Avionics, Inc.

VNAV Gain-Setting Flow

Document 180614
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PDF
Service Bulletins and LettersTrio Avionics, Inc.

SERVICE BULLETIN 001(SW 220322E)

Revision A
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PDF
Service Bulletins and LettersTrio Avionics, Inc.

SERVICE BULLETIN 002(Servo Mods) Downgraded to SL- 002

Revision A
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PDF
Service Bulletins and LettersTrio Avionics, Inc.

SERVICE BULLETIN 003(SW 220322F)

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PDF
Service Bulletins and LettersTrio Avionics, Inc.

SERVICE LETTER 001(SW 220322F) Upgraded to SB-003

Revision A
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PDF
Service Bulletins and LettersTrio Avionics, Inc.

SERVICE LETTER 002(Servo Mods)

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PDF
SoftwareTrio Avionics, Inc.

Software Upgrade Logbook Entry Example

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PDF
SoftwareTrio Avionics, Inc.

Trio Autopilot Software Change Log

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Provisioned for the next phase

Third-party avionics and interface documents

Manufacturer manuals and Trio-specific interface guidance will remain separate from the STC-controlled airframe record.

uAvionixAV-30 / AV-30C
Aspen AvionicsE5 / Evolution
GarminG5
Dynon AvionicsCertified EFIS

Document authority and provenance

Current Cessna 172 Trio Pro Pilot technical references

This index identifies the installation and certification records currently maintained for the Trio Pro Pilot under FAA STC SA04230CH. Applicability depends on the exact aircraft model and saved installation configuration.

Technical document publishers
The STC Group LLC and Trio Avionics, Inc.
Library host and distributor
TrioAutopilots.com
Certification basis
FAA STC SA04230CH
Revision monitoring
Official sources checked every 30 days