Installation of SBAS-capable Honeywell IMMR on Boeing 767
Overview
Introduction
As the air traffic is continuously growing, there is a steady increasing demand on improving navigation systems and landing efficiency. The Integrated Multi Mode Receiver (IMMR) is a comprehensive and fully digital navigation receiver that integrates Instrument Landing Systems (ILS), Global Position Systems (GPS), GPS Landing System (GLS) and VHF Omnidirectional Radio Range (VOR) functionality.
Lufthansa Technik’s (LHT) STC enables you to replace existing Multi Mode Receivers in order to extend the functionality of your aircraft by a Satellite Based Augmentation System (SBAS) - capable GPS module as well as ILS.
SBAS is a navigation aid that augments the Global Navigation Satellite System (GNSS) providing a more accurate and reliable navigation service.
The Instrument Landing System (ILS) is a navigational aid and provides position data of the airplane for landing approaches. It is designed to receive and process localizer and glideslope information.
The activation of VOR, GLS and Marker Beacon is not yet a part of the scope of this above listed STC.
The above listed EASA STC has been validated or approved by the following aviation authority agencies:
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FAA (ST04442NY, Date of issue: 2020/01/31)
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TCCA (SA19-103, Date of issue: 2019/10/25)
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Government of Aruba, Ministry of Transport, Communications and Primary Sector (DL/192349-C, Date of issue: 2019/11/27)
Your needs
The IMMR is designed to meet today’s accurate and precise navigation requirements and enables simple functional extensions for the next-generation navigation standards.
According to the ADS-B Out mandate established by the FAA and EASA, aircraft operators need to equip their fleet with serviceable ADS-B Out equipment in order to be still eligible entering the associated airspace (FAA: from January 1, 2020 and EASA: from December 7, 2020 onwards).
To be fully compliant with the FAA ADS-B Out mandate the aircraft needs to be equipped with a SBAS-enabled GPS receiver and transmitting antennas.
LHT’s STC enables you to equip your aircraft with this mandatory navigation function and combines it with the Instrumented Landing System.
Your benefits
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Supports current industry navigation standards
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Improves functional growth capability due to software updates
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Enabling more efficient navigation capabilities
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Enhanced use of optimal flight levels and routes
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Closer aircraft spacing in IFR environment
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Achieve full compliance with the FAA ADS-B Out mandate
Product Description
LHT offers you a sophisticated solution that consists of two separate tasks: the Installation of Satellite Based Augmentation (SBAS) – capable Active Antennas as well as Honeywell’s Integrated Multi Mode Receiver (IMMR).
Installation of SBAS-capable Active GPS Antennas:
LHT’s solution installs two new active GPS antennas capable to receive SBAS-signals at first, which are replacing the existing GPS antennas.
The two new active GPS antennas, compliant with TSO-C190, are installed on the top of the fuselage, in positions identical with the positions of the existing GPS antennas.
The new antennas receive L-band frequency signals from the NAVSTAR GPS satellite constellation as well as from SBAS satellites. The antennas transmit the satellite signals to the existing left and right Multi-Mode Receivers (MMRs).
In order to install the SBAS-capable Active GPS Antennas, the following Pre-Mod conditions are required:
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The aircraft has to be equipped with Rockwell Collins GLU-920, or Honeywell RMA-55B Multi-Mode
- Receivers or Rockwell Collins GLU-925, P/N 822-1821-001
Installation of SBAS-capable Honeywell iMMR:
The second step of LHT’s solution consist of the installation of three Honeywell Integrated Multi-Mode Receivers (IMMR), replacing the three existing Multi-Mode Receivers. The Integrated Multi-Mode Receivers are installed on the Electronic Equipment Racks in the Main Equipment Center. To change the pin-programming of the Center IMMR, the associated wiring is modified.
The IMMR is capable of receiving and processing signals for Satellite Based Augmentation System (SBAS).
Accordingly, the accuracy of the positioning calculation will be increased with this modification. Further functionalities, introduced by the IMMR, will not be enabled with this subject design change.
Your benefits
-
Supports current industry navigation standards
-
Improves functional growth capability due to software updates
-
Enabling more efficient navigation capabilities
-
Enhanced use of optimal flight levels and routes
-
Closer aircraft spacing in IFR environment
-
Achieve full compliance with the FAA ADS-B Out mandate