EMB145 captain reports missing a crossing restriction during descent due to FMS design limitations t...

Attributes
ACN	905627
Time
Date	201008
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Component
Aircraft Component	FMS/FMC
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Published Material / Policy

Narrative:

Was cleared to cross 40 NM west of VOR at FL240. Programed FMS for crossing; and also programed expected crossing of intersection at FL110. Was then given direct to the intersection. I then went back to vto page and didn't see that the FMS dumped the crossing restriction at the intersection. Unknown to me; I was using the crossing of 2;300 ft at another intersection on the ILS to the runway instead. Cause FMS limitations. Failure of FAA to require training (and that is not checking; but training. Training that is without stress of failure and losing your job). Install VNAV coupled autopilot. Update FMS so as not to dump crossing restriction after executing a direct to.

Original NASA ASRS Text

Title: EMB145 Captain reports missing a crossing restriction during descent due to FMS design limitations that dump a crossing restriction whenever a direct to function is selected. The reporter believes that inadequate training is part of the problem.

Narrative: Was cleared to cross 40 NM west of VOR at FL240. Programed FMS for crossing; and also programed expected crossing of intersection at FL110. Was then given direct to the intersection. I then went back to VTO page and didn't see that the FMS dumped the crossing restriction at the intersection. Unknown to me; I was using the crossing of 2;300 FT at another intersection on the ILS to the runway instead. Cause FMS limitations. Failure of FAA to require TRAINING (and that is not checking; BUT TRAINING. TRAINING that is without stress of failure and losing your job). Install VNAV coupled autopilot. Update FMS so as not to dump crossing restriction after executing a direct to.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

EMB145 captain reports missing a crossing restriction during descent due to FMS design limitations that dump a crossing restriction whenever a direct to function is selected. The reporter believes that inadequate training is part of the problem.