ARINC REPORT – Page 6 OMS DESCRIPTION OMS Architecture The OMS should consist of the following equipment:?. Buy ARINC DESIGN GUIDANCE FOR ONBOARD MAINTENANCE SYSTEM from SAI Global. Avionics maintenance practices continue to improve through On-Board Maintenance System (OMS) recording. This standard defines the OMS.

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This information should include: The word count field should be set to a value equal to the number of words excluding the label in the wordstring.

The report should be transmitted when the member system is reporting an indication to the CMC that may result in a flight deck effect. Each update to the software should be identified arknc a software version reference visible at the initial menu page of the ACMS.

The octet string type is used to model data whose format is not according to BER standards and whose length in bits is a multiple of eight. Software anomalous behavior is believed to contribute to unjustified removals significantly. If the information is to be printed, retrieved, or downlinked, the following information should be added: Requirements for reporting arunc leg numbers as part of LRU fault history are given in section 6. For certain airplane systems, it may be appropriate to divide or combine some of the above flight phases.


Onboard Maintenance Systems Design & Development – Performance

The potential exists for multiple users to independently request access to CMC functions. Encoding for the universal types used in the OMS protocol should be as given in the following sections. Ground tests should be enabled by selections via the OMS user interface.

Specific attention should be focused on areas of equipment, such as engines, auxiliary power units, or environmental control system devices such as airconditioning packs. Ports should be provided for optional remote or portable MATs to facilitate maintenance at other locations. The CMC should format aricn display this page when selected by a user.

Onboard Maintenance Systems for Modern Aviation

Access to current fault level of fault tolerant systems. Engine Start The time interval from the initiation of engine start e.

Short Form for lengths between 0 and octets: This is commonly used where the named sequence is used in multiple places. When an Event command is received, each commanded member system should store software trace and other relevant pre-event data. Unsourced material may be challenged and removed.

ARINC – Wikipedia

It should convert raw data to engineering units and perform basic filtering functions, such as debounce, latching, and data smoothing. Tags of this class are used by developers of other standards to uniquely identify a type within some particular application. The CMC should also have access to the member systems LRU shop fault data for engineering use both on the flight deck as well as in the shop.


The system should provide a default display format and display update rate. Type rainc defines the characteristic per section 6.

The data to be passed from the aircraft to the ground should include failure data, failure history data, reports from the ACMS, and other appropriate aircraft maintenance status data. Downlink of selected maintenance data. The MAT should provide text and graphics for schematics, component location, wiring diagrams, and assembly diagrams as required for OMD.

In addition, the ASN. The desire of some airlines to require flight crew interaction prior to release of maintenance or failure data for downlinking should be provided for by OMS. This class is not referenced directly in the ASN. By using this site, you agree to the Terms of Use and Privacy Policy.

To enhance readability of the tables and charts contained in this section, an exception has been made to the format. Failure monitors should be designed with tolerance and time filters compatible with intended functions and the operating environment.