Minimum Aviation System Performance Standards for Aircraft ...

3.5.1.6.7 Heading Valid Field
The “Heading Valid” field in the ARV report shall (242AR3.129) be ONE if the
“Heading While Airborne” field contains valid heading information, or ZERO if that
field does not contain valid heading information.
3.5.1.7 Target State (TS) Report
The Target State (TS) Report provides information on the current status of the MCP/FCU
or FMS Selected Altitude and the Selected Heading. Table 3.5.1.7 lists the elements of
this report.
Table 3.5.1.7: Target State (TS) Report Definition
TS
Report
Elem. #
Contents [Resolution or # of bits]
Reference
Section
ID
1
2
Participant Address
Address Qualifier
[24 bits]
[1 bit]
3.3.2.1
3.3.2.2
TOA 3 Time of Applicability [1 s resolution] 3.5.1.7.3
4a Selected Altitude Type [1 bit] 3.5.1.7.4
Selected 4b MCP/FCU or FMS Selected Altitude [16 bits] 3.5.1.7.5
Altitude 4c Barometric Pressure Setting (minus 800 millibars) [16
bits]
3.5.1.7.6
Selected
Heading
5 Selected Heading [16 bits] 3.5.1.7.9
6a Autopilot Engaged [1 bit] 3.5.1.7.11
Mode
Indicators
6b
6c
6d
VNAV Mode Engaged
Altitude Hold Mode
Approach Mode
[1 bit]
[1 bit]
[1 bit]
3.5.1.7.12
3.5.1.7.13
3.5.1.7.14
6e LNAV Mode Engaged [1 bit] 3.5.1.7.15
Reserved (Reserved for Future Growth) [4 bits]
3.5.1.7.1 Conditions for Transmitting TS Report Information
An airborne ADS-B participant of equipage class A2 or A3 shall (242AR3.130) transmit
messages to support the TS report when airborne and target state information is available.
Note: TS Reports are also optional for A1 equipment. If A1 equipment chooses to
support TS reports those reports must meet the requirements specified in §3.5.1.7
and all of its subsections.
3.5.1.7.2 TS Report Update Requirements
The nominal update interval for TS Report information is specified in §3.4.3.3.1.4 and
Table 3.4.3.3.1.1d.
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