A B737-800 captain reported the new hgs 4000 HUD flight path vector (fpv) was centered on the VASI o...

Narrative:

I reported flight path vector errors concerning the hgs 4000 on the new B737-800. I flew this aircraft today; and inputted the 9999 airport elevation correction as required per the bulletin. I flew the approach in ai mode. The fpv at 200 feet was superimposed exactly on the VASI; instead of on the runway. The same lateral displacement of the fpv continued to below fifty feet AGL until the fpv disappeared during the 'flare' mode. I need to point out that the bulletin indicates the error to be slightly displaced off of the runway centerline. In fact; with the correction; or 'software work-around'; the fpv; was; as I said; imposed over the VASI off the left side of the runway. I have heard from other pilots that the same thing occurs on other newer HUD aircraft. I have yet to fly a new jet in catii or catiii. I seriously doubt the low visibility certifiable of this HUD if the FAA was aware of the actual fpv image in the aircraft on an actual approach. This 'software' issue was supposed to be completed by the end of november.

Original NASA ASRS Text

Title: A B737-800 Captain reported the new HGS 4000 HUD flight path vector (FPV) was centered on the VASI off the left side of the runway and not on the runway surface.

Narrative: I reported flight path vector errors concerning the HGS 4000 on the new B737-800. I flew this aircraft today; and inputted the 9999 airport elevation correction as required per the bulletin. I flew the approach in AI mode. The FPV at 200 feet was superimposed exactly on the VASI; instead of on the runway. The same lateral displacement of the FPV continued to below fifty feet AGL until the FPV disappeared during the 'flare' mode. I need to point out that the bulletin indicates the error to be slightly displaced off of the runway centerline. In fact; WITH the correction; or 'software work-around'; the FPV; was; as I said; imposed over the VASI off the left side of the runway. I have heard from other pilots that the same thing occurs on other newer HUD aircraft. I have yet to fly a new jet in CATII or CATIII. I seriously doubt the low visibility certifiable of this HUD if the FAA was aware of the actual FPV image in the aircraft on an actual approach. This 'software' issue was supposed to be completed by the end of November.

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.

Attributes
ACN	924309
Time
Date	201012
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Component
Aircraft Component	Heads-Up Display
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Track / Heading All Types

A B737-800 captain reported the new hgs 4000 HUD flight path vector (fpv) was centered on the VASI off the left side of the runway and not on the runway surface.