Technical Information
82011-IM, REV J
Sandel SG102 & MT102 Installation Manual
Page 2-3
2.4
Approval Summary
2.4.1 License Requirements
None.
2.4.2 Approval Data
Technical Standard Order:
C4c, Bank and Pitch Instruments
C6d, Direction Instrument, Magnetic
(Gyroscopically Stabilized)
Software Certification:
RTCA/DO-178, Level C
Environmental Categories:
RTCA/DO-160E (Reference Appendix B)
2.4.3 Technical Standard Order Stipulation
The following stipulation as presented is required by the Federal Aviation Administration for
articles approved under Technical Standard Order. This statement does not preclude multiple
installation and operational approvals in regard to specific aircraft make, model, or type:
“The conditions and tests required for TSO approval of this article are minimum performance
standards. It is the responsibility of those installing this article either on or within a specific type
or class of aircraft to determine that the aircraft installation conditions are within the TSO
standard. TSO articles must have separate approval for installation in an aircraft. The article
may be installed only if performed under 14 CFR part 43 or the applicable airworthiness
requirements.”
2.4.4 Installation and Operational Approval Procedures
For the purpose of seeking installation approval, declarations should be made in the “Description
of Work Accomplished” section of a Federal Aviation Administration (FAA) Form 337 or other
field approval, or other limited supplemented type certification form. A sample Form 337 is
included in the Appendix. The basis of approval is for use as a gyroscopically stabilized
magnetic direction instrument. Applicable Federal Aviation Regulations (FAR) must be adhered
to.
The Environmental Qualification Forms for the SG102 and the MT102 is included in the
Appendix, and should be referenced to the categories appropriate to the aircraft type and
environment into which the system is to be installed. The environmental category for the AHRS
should be stipulated on the FAA Form 337, or other approval form.
A “Functional Ground Test Procedures/Report” and an “Operational Flight Check
Procedures/Report” is also included in the appendix, and should be used as a basis for validating
the SG102 equipment configuration and for verifying proper installation and functional
performance. A copy of this form should be submitted along with the FAA Form 337, or other
approval or certification form. A permanent copy must be filed and maintained by the installing
