Hilfe beim Ariane BBJ V3 Problem

[Janicki]

. VERIFY POSITION Message Enhancements
In FMC U10.6 and previous versions, the VERIFY POSITION scratchpad message told the crew of position data that did not agree. After the message displays, the flight crew identified the best source of position data and then made a decision about the applicable procedure. The VERIFY POSITION message set is expanded in version U10.7 of the FMC OPS. The identity of the position source that disagrees is shown on the display. The message changes help the flight crew identify the unreliable position source. This helps to decrease the flight crew workload. The new messages are better for RNP operations because the decision of the applicable procedure is easier for the flight crew when they know the error source.

9. RTA Accuracy Improvement
The Required Time of Arrival (RTA) was designed for enroute operations. RTA is a part of FMC U10.6 and previous FMC versions. RTA is intended to correct for differences between Estimated Time of Arrival (ETA) and RTA when the aircraft is approximately two hours from the RTA location. FMC U10.7 improves RTA accuracy by modifying the method and frequency of ETA updates, which provides better control to the RTA time in dynamic conditions such as winds and when in descent.

10. Geometric Path Descent:
FMC U10.7 and FMC U10.6 use calculated gradients to give the Geometric Path Descent. This is done for the full descent profile when the FULL mode is selected. The FULL mode is shown in the PERF FACTORS page on LSK 1L (GEO DES). The FULL mode is the default mode and cannot be changed to the APP mode unless the Loadable Defaults Data Base (LDDB) is programmed to allow the APP mode. With FMC U10.7, the LDDB can be programmed to select APP as the default mode. The APP mode uses calculated gradients only during approach and approach transition legs. Cold weather corrections for VNAV path construction are held during approach or approach transition phases. The APP mode uses a "stay high then dive" VNAV descent before approach or approach transition. Operators sent reports that U10.6 had a less than desired speed descent.This will help with that problem.

NOTE: The LDDB is an operator option that is supplied by Smiths Aerospace. To select APP as the default mode, operators must contact Smiths Aerospace to get a modification to their LDDB.

11. LOC Update Inhibit
Customers report that with FMC U10.6, an update to the localizer (LOC) can cause a lack of precision in the FMC position. This occurs when the localizer path is unreliable or the localizer course in the NDB is not accurate. Many facilities record localizer courses in 1.0 degree increments but updates in 0.1 degree increments are necessary for accurate FMC positions. As a result of this difference, the FMC position can be off. A logic change in FMC U10.7 will let LOC be disabled when the Global Position System (GPS) position receives an update. A prompt on the NAV OPTIONS page (4R - LOC UPDATE) will let the LOC update be manually enabled or disabled. The standard condition of the LOC UPDATE prompt is ON. The standard condition lets the same procedures be used for airplanes with GPS as airplanes without GPS.

FMC OPS has these additions.
1. GPS Loss Alerting