Sandel
Avionics
SN3308 Navigation Display
Installation Manual
90106-IM-G(4) Installation Manual W SIG.doc
Page 27
information. Moving map operations of the SN3308 is to be approved as supplemental
means for VFR or IFR navigation, consistent with the approval of the long-range
navigation system. See appropriate FAA Advisory Circular (AC) or other guidance on
Loran-C, GPS, FMS, or INS for approval methods of such equipment. Applicable
Federal Aviation Regulations (FAR) must be adhered to.
Flight Standards Information Bulletin, FSAW 95-09( )(Amended), titled: “Electronic
Horizontal Situation Indicator (EHSI) Approvals” was originally published for the
purpose of assisting Aviation Safety Inspectors with approval authority and methods for
conducting a field approval for the SN3308. This FSIB describes the qualification of
displays intended for use as essential, not critical, to preclude the need to conducting
additional testing to substantiate immunity to high intensity radiated fields (HIRF)
requirements. FSAW 95-09A has been superseded by a Flight Standards
Memorandum dated 11/10/1998, making the SN3308 eligible for follow-on approval. A
copy of this memorandum has been attached in the Appendix F.
The Environmental Qualification Form for the SN3308 is included within this Installation
Manual, as Appendix B, and should be referenced to the categories appropriate to the
aircraft type and environment into which the SN3308 is to be installed. The
environmental category for the SN3308 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 as Appendix D, and should be used as a basis for
validating the SN3308 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 agency. Another copy must be presented to the aircraft
owner for entry into the aircraft maintenance records, as well as a copy forwarded to
Sandel Avionics along with the Warranty Registration Form, Part Number 10129, to be
filed after completion and installation acceptance. If any difficulty is experienced with
the functionality or operational performance of the SN3308, contact Sandel Avionics for
assistance.
