An air carrier on the ege localizer FMS 25 encountered a tailwind prior to barza which pitched the a...

Attributes
ACN	1031036
Time
Date	201208
Local Time Of Day	1801-2400
Place
Locale Reference	EGE.Airport
State Reference	CO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Large Transport Low Wing 3 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Pilot Flying
Events
Anomaly	Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

While [we were] on approach into ege; on localizer FMS 25; autopilot on; in LNAV and VNAV on path. [We] picked up a 15 KT tailwind prior to barza fix. Aircraft pitched nose down to stay on path. Aircraft reported GPWS warning (pull up) for terrain under barza fix. In VMC conditions and clear of terrain; we continued the approach to normal landing. Aircraft remained on FMS path the complete approach. The aircraft was reported to have flown below barza fix. Barza fix is not shown in FMS approach. I would suggest we look at the software for localizer FMS runway 25 approach into ege. FMS projected an incorrect path; or the commercial chart is incorrectly marked.

Original NASA ASRS Text

Title: An Air Carrier on the EGE LOC FMS 25 encountered a tailwind prior to BARZA which pitched the aircraft nose down initiating a GPWS PULL UP Warning. The crew took no action because the aircraft was on the VNAV/LNAV Path the entire arrival.

Narrative: While [we were] on approach into EGE; on LOC FMS 25; autopilot ON; in LNAV and VNAV on PATH. [We] picked up a 15 KT tailwind prior to BARZA fix. Aircraft pitched nose down to stay on path. Aircraft reported GPWS Warning (PULL UP) for terrain under BARZA fix. In VMC conditions and clear of terrain; we continued the approach to normal landing. Aircraft remained on FMS PATH the complete approach. The aircraft was reported to have flown below BARZA fix. BARZA fix is not shown in FMS approach. I would suggest we look at the software for LOC FMS Runway 25 approach into EGE. FMS projected an incorrect path; or the commercial chart is incorrectly marked.

Data retrieved from NASA's ASRS site as of July 2013 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.

An air carrier on the ege localizer FMS 25 encountered a tailwind prior to barza which pitched the aircraft nose down initiating a GPWS pull up warning. The crew took no action because the aircraft was on the VNAV/LNAV path the entire arrival.