Appareo Stratus ES User manual

This document and the information
contained herein are the property of
Appareo Systems, LLC and are
confidential. They may not be disseminated
or redistributed without the written
permission of Appareo Systems, LLC
APPAREO SYSTEMS, LLC
FARGO, NORTH DAKOTA 58102
Stratus ES/ESG Maintenance Manual
DOCUMENT NUMBER
600845-000024
Document Type
Certification
Last Revised
20 February 2018
REV
2.2
Sheet
1 of 28
Maintenance Manual
Appareo Systems Stratus ES/ESG System
SERIAL NUMBER:___________________
REGISTRATION NUMBER:____________

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 2 of 28
Record of Revision
Related Documentation
Document Number Title
600840-000031 Stratus ES/ESG Installation Instructions
600890-000049 Stratus ES/ESG Pilot’s Guide
601837-000024 Stratus ES/ESG Installation Drawings and Wiring Diagrams
Warranty
To view the Stratus ES/ESG warranty, log into the Appareo Dealer Portal or
visit www.appareo.com/resources.
Revision
Number Change Description Effective Date Inserted By
1.0 Initial Release 5/29/2015 Angela Lorenz
1.1 CM 10304 1/05/2016 Angela Lorenz
1.2 CM 10612 2/15/2016 Angela Lorenz
1.3 CM 11328 5/11/2016 Angela Lorenz
1.4 CM 11509 6/08/2016 Angela Lorenz
2.0 CM 13666 4/18/2017 Angela Lorenz
2.1 CM 13666 6/29/2017 Angela Lorenz
2.2 Updated SW and CEH revision levels in Table 4, added alternate COTS number for screw, Table 6,
added Transmitter Failure Display in Section 10.1.2 2/20/2018 Angela Lorenz

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 3 of 28
Table of Contents
Abbreviations and Definitions..................................................................................................... 6
1. INTRODUCTION............................................................................................................ 7
1.1. PURPOSE................................................................................................................ 7
1.2. CERTIFICATION INFORMATION............................................................................ 7
1.3. SYSTEM DESCRIPTION ......................................................................................... 9
1.4. TOOLS....................................................................................................................10
1.5. WEIGHT AND BALANCE INFORMATION..............................................................10
1.6. EQUIPMENT DIMENSIONS....................................................................................11
1.7. ELECTRICAL SPECIFICATIONS............................................................................11
1.8. POWER REQUIREMENTS.....................................................................................11
2. AIRWORTHINESS LIMITATIONS.................................................................................12
3. INSPECTION REQUIREMENTS AND OVERHAUL (ATA CHAPTER 5).......................12
3.1. GENERAL INSPECTION INFORMATION...............................................................12
4. DIMENSIONS AND ACCESS (ATA CHAPTER 6).........................................................13
4.1. COMPONENT LOCATIONS....................................................................................13
4.2. MAINTENANCE INSTRUCTIONS...........................................................................13
4.3. FUNCTIONAL TESTS.............................................................................................16
5. LIFTING AND SHORING (ATA CHAPTER 7)................................................................19
5.1. LIFTING INFORMATION.........................................................................................19
5.2. SHORING INFORMATION......................................................................................19
6. LEVELING AND WEIGHING (ATA CHAPTER 8)..........................................................19
6.1. LEVELING INFORMATION.....................................................................................19
6.2. WEIGHING INFORMATION....................................................................................19
7. TOWING AND TAXIING (ATA CHAPTER 9).................................................................19
7.1. TOW INSTRUCTIONS............................................................................................19
7.2. TAXIING INSTRUCTIONS ......................................................................................19
8. PARKING, MOORING AND STORAGE (ATA CHAPTER 10) .......................................20
8.1. MOORING INFORMATION.....................................................................................20
8.2. PARKING INFORMATION......................................................................................20
8.3. STORAGE LIMITATIONS .......................................................................................20
9. PLACARDS AND MARKINGS (ATA CHAPTER 11)......................................................20
10. SERVICING (ATA CHAPTER 12)..................................................................................20
10.1. SERVICING INFORMATION...................................................................................20

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 4 of 28
10.2. LUBRICATION INFORMATION ..............................................................................23
10.3. EQUIPMENT REQUIRED FOR SERVICING ..........................................................23
10.4. CONSUMABLE MATERIALS..................................................................................23
11. WIRING DIAGRAMS.....................................................................................................24

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 5 of 28
List of Figures
Figure 1: Stratus ES/ESG installation diagram..........................................................................13
Figure 2: Locking mechanism location......................................................................................14
Figure 3: Software update wiring diagram.................................................................................15
Figure 4: Interface for Stratus ES/ESG functional tests.............................................................18
Figure 5: Pin-out .......................................................................................................................24
Figure 6: Stratus ES wiring diagram with parallel altitude encoder............................................25
Figure 7: Stratus ES wiring diagram with serial altitude encoder...............................................26
Figure 8: Stratus ESG wiring diagram with parallel altitude encoder .........................................27
Figure 9: Stratus ESG wiring diagram with serial altitude encoder ............................................28
List of Tables
Table 1: TSO compliance........................................................................................................... 7
Table 2: TSO deviations............................................................................................................. 8
Table 3: Criticality level .............................................................................................................. 8
Table 4: Embedded hardware and software............................................................................... 9
Table 5: Required hardware (LRUs)........................................................................................... 9
Table 6: Required hardware (COTS components) ....................................................................10
Table 7: Required tools.............................................................................................................10
Table 8: Stratus ES/ESG weight ...............................................................................................11
Table 9: Equipment dimensions................................................................................................11
Table 10: Electrical specifications .............................................................................................11
Table 11: Power requirements..................................................................................................11
Table 12: Scheduled maintenance............................................................................................12
Table 13: Troubleshooting guide...............................................................................................23

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 6 of 28
Abbreviations and Definitions
Abbreviation Term Definition
CFR Code of Federal
Regulations
Codification of the general and permanent rules and
regulations published in the Federal Register by the
executive departments and agencies of the United
States Federal government.
ES Extended Squitter
A periodic message that provides position, velocity,
and time. Part of the marketing name for Stratus ES.
ESG
Extended Squitter and
GPS
Part of the marketing name for Stratus ESG.
FAA Federal Aviation
Administration
Agency of the United States Department of
Transportation with authority to regulate and oversee
all aspects of civil aviation in the United States.
Gb Gigabit
Unit of information or computer storage equal to
1,000,000,000 bits (equal to 125 megabytes).
GPS
Global Positioning
System
A system used to identify the longitude, latitude and
in some instances the altitude of a given object.
Hz
Hertz
Unit of frequency based upon cycles per second.
TSO Technical Standard
Order
Minimum performance standard for specified
materials, parts, and appliances used on civil aircraft
(FAA definition).
WAAS Wide Area
Augmentation System
System of ground-based antennas whose precisely
known locations are used to correct satellite signals
and provide greater positional and integrity of service
to aircraft in flight.

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 7 of 28
1. INTRODUCTION
1.1. PURPOSE
This Maintenance Manual describes the recommended and required maintenance practices to
maintain the Appareo Systems Stratus ES and Stratus ESG systems.
Electronic media or hard copy revisions/updates to this document will be made available to all
owners if contact information is provided to the manufacturer. Aircraft owners are encouraged to
provide up-to-date information to ensure timely access to new information. You can contact the
manufacturer at:
Appareo Systems, LLC
1830 NDSU Research Circle North
Fargo, ND 58102
To view the most current version of this document, go to appareo.com/dealer-portal
or www.appareo.com/resources.
All structural and general maintenance must be performed in accordance with the aircraft’s
Standard Practices Manual and FAA AC 43.13-1B.
1.2. CERTIFICATION INFORMATION
1.2.1. TSO and FCC compliance
TSO
Stratus ES/ESG is compliant with the following Technical Standard Orders:
Reference/Issue Title
FAA TSO-C112e
Technical Standard Order: Air Traffic Control Radar Beacon
System/Mode Select (ATCRBS / Mode S) Airborne Equipment
FAA TSO-C145d
(Stratus ESG only)
Technical Standard Order: Airborne Navigation Sensors Using The
Global Positioning System
FAA TSO-C166b
Technical Standard Order: Extended Squitter Automatic Dependent
Surveillance – Broadcast (ADS-B) and Traffic Information Service –
Broadcast (TIS-B) Equipment Operating on the Radio Frequency of
1090 Megahertz (MHz)
Table 1: TSO compliance
FCC
Stratus ES/ESG has an FCC ID of 2AETC-1505005.

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 8 of 28
1.2.2. TSO deviations
TSO Section Deviation
TSO-C145d
(Stratus ESG only)
Section 3, Subpart D
Environmental qualification testing was
performed to DO-160G, not DO-160E.
Table 2: TSO deviations
1.2.3. Non-TSO functions
Below are Stratus ES/ESG’s non-TSO functions:
•VFR key (and configuration).
This non-TSO function does not interfere with Stratus ES/ESG’s compliance with the
requirements of the TSOs listed in Section 1.2.1.
1.2.4. Environmental qualifications
Stratus ES/ESG is tested to DO-160G. The Stratus ES/ESG Environmental Qualification form is
found in Appendix A of the Stratus ES/ESG Installation Instructions (600840-000031).
1.2.5. Criticality level
Software level determination is based on the Functional Hazard Assessment (FHA) and
Preliminary System Safety Assessment (PSSA). These assessments determined that the most
severe failure conditions (see Table 1) are classified as Major. As such, the Software Assurance
Level has been determined to be Major.
Major failure conditions would reduce the capability of the aircraft or the ability of the crew to
cope with adverse operating conditions to the extent that it would be a significant reduction in
safety margins or functional capabilities or a significant increase in crew workload. Software
whose anomalous behavior would cause or contribute to a failure of the system function
resulting in a Major failure condition for the aircraft is identified as Level C.
Function Description Classification
ATCRBS / Mode S
Transponder
Malfunction of the ATCRBS / Mode S
transponder function without warning
Major
ADS-B Out
Broadcast of incorrect ADS-B messages
without warning
Major
GPS/SBAS Receiver
(Stratus ESG only)
Loss or malfunction of the GPS/SBAS receiver
function
Major
Pressure Altitude Output
Failure of the pressure altitude output function
Major
RF Feed-Through
Malfunction of the RF feed-through function
without warning
Major
Table 3: Criticality level

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 9 of 28
1.3. SYSTEM DESCRIPTION
Stratus ES and Stratus ESG by Appareo are panel-mounted level 2els Class 1 Extended
Squitter transponders. They are Class B1S transponders which are ADS-B Out compliant.
Stratus ES and Stratus ESG respond to legacy Mode A/C interrogations and Mode S
interrogations from both ground radar and airborne collision avoidance systems. To support the
ADS-B Out function, Stratus ESG also contains a Class Beta 1 GPS/WAAS receiver. Stratus ES
receives GPS information from approved GPS position sources.
1.3.1. Operation of Stratus ES/ESG
See the Stratus ES/ESG Pilot’s Guide (600890-000049) for a full description of
Stratus ES/ESG’s function.
1.3.2. Embedded Hardware and Software
The embedded hardware and software information listed below is current as of the time of
publication of this document.
Description Part number Revision
(or later FAA approved)
Embedded Hardware (FPGA)
501010-000109
R05
Software (DSC)
501010-000113
R07
Table 4: Embedded hardware and software
Refer to Section 4.2.3 for software/embedded hardware update procedures.
1.3.3. Stratus ES/ESG parts catalog
The following parts are required for the installation of Stratus ES/ESG.
Line Replaceable Units (LRUs):
Item Appareo Part Number Commercial Part
Number Quantity
Backplate
153510-000015
-
1
Stratus ES Transponder
or
Stratus ESG Transponder
153510-000069
or
153510-000017
- 1
Stratus ESG Rack
153540-000027
-
1
RF TNC Pass Through Adapter
(Stratus ESG only)
251015-000077 - 1
RF BNC Pass Through Adapter
251015-000078
-
1
Table 5: Required hardware (LRUs)

Stratus ES/ESG Maintenance Manual
Rev: 2.2
Last Revised: February 20, 2018
Document Number: 600845-000024
Page 10 of 28
COTS components:
Item Appareo Part
Number Commercial Part Number Quantity
#6-32 x 100° Flat Head SS
Screw
-
MS24693, AN507R or
other approved fastener
6
Metal Hex Stop Nut *
-
MS21042-06
6
Monadnack Clip Nut 6-32*
-
294667
6
Replacement pins
-
M39029/63-368
-
37 Pin DSUB Connector
251015-000074
M24308/2-4F
1
Screw 356060-000007
-
(ALT: MS51957-13)
6
Strain Relief Backshell
356070-000006
M85049/48-1-4F
1
Table 6: Required hardware (COTS components)
*These parts are identified as usable components, but are not identified as the only components
that can be used. Installer must determine if the part is appropriate for specific installation or if
an alternate part is required.
Stratus ES/ESG also requires input from a GPS position source (Stratus ES) or GPS antenna
(Stratus ESG), transponder antenna, and altitude encoder. See Stratus ES/ESG Installation
Instructions (600840-000031) for equipment requirements.
1.4. TOOLS
The following tools may be needed for maintenance of Stratus ES/ESG.
Tool Part Number Used For
3/32” hex driver -
Securing locking mechanism through
the face plate
External retaining ring pliers
-
RF pass through adapter
Crimp tool
M22520/2-01
DSUB pins
Positioner
M22520/2-08
DSUB pins
Insertion/extraction tool
M81969/39-01
DSUB pins
Table 7: Required tools
1.5. WEIGHT AND BALANCE INFORMATION
The total weight of the Stratus ES/ESG system and related hardware is less than 4 lbs.
Compute a Chart “C” in accordance with the table below, noting the proper aircraft station to
obtain balance information.
Component Weight
Stratus ES/ESG Unit Weight
2.8 lbs. (1.3 kg)
Stratus ES/ESG Total Installed Weight
(Transponder, rack, and connectors)
3.3 lbs. (1.5 kg)