Narrative:

On flight from ind to pit I was rerouted, 'direct wheeling, direct montour,' then issued a clearance to, 'cross 15 mi west of wheeling at 10000' and 250 KTS.' I proceeded direct wheeling and planned my descent in order to make the crossing restriction. The problem was that because of a recent merger we have 2 different types of DME displays. The one I'm used to has the DME for the #2 navigation (my side) displayed directly on the HSI and a remote DME display offset to the side which is a repeater for the #1 navigation. The post-merger aircraft have the DME on the HSI disconnected and in its place they have a remote DME display offset to the side with both DME's displayed side-by-side on the one display. In my normal scan on the pre-merger aircraft (the one I have flown most), the remote DME was always associated with the #1 navigation. On the post-merger aircraft with both DME's on 1 display, I believe I misread it because I normally read left to right and I assume the display closest to my HSI is the DME for my HSI. Not true! What I was really doing was crossing 15 mi west of mmj at 10000', 250 KTS. I estimate that I crossed 15 NM west of wheeling at 12000-13000' and 330 KTS. Nothing was ever said by controller, but I think it was a big error on my part that I must be very careful about in the future. I think a standard cockpit confign would help solve this type problem.

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Original NASA ASRS Text

Title: ACR LGT ALT DEVIATION UNDERSHOT ALT CROSSING RESTRICTION PLUS SPEED DEVIATION.

Narrative: ON FLT FROM IND TO PIT I WAS REROUTED, 'DIRECT WHEELING, DIRECT MONTOUR,' THEN ISSUED A CLRNC TO, 'CROSS 15 MI W OF WHEELING AT 10000' AND 250 KTS.' I PROCEEDED DIRECT WHEELING AND PLANNED MY DSNT IN ORDER TO MAKE THE XING RESTRICTION. THE PROB WAS THAT BECAUSE OF A RECENT MERGER WE HAVE 2 DIFFERENT TYPES OF DME DISPLAYS. THE ONE I'M USED TO HAS THE DME FOR THE #2 NAV (MY SIDE) DISPLAYED DIRECTLY ON THE HSI AND A REMOTE DME DISPLAY OFFSET TO THE SIDE WHICH IS A REPEATER FOR THE #1 NAV. THE POST-MERGER ACFT HAVE THE DME ON THE HSI DISCONNECTED AND IN ITS PLACE THEY HAVE A REMOTE DME DISPLAY OFFSET TO THE SIDE WITH BOTH DME'S DISPLAYED SIDE-BY-SIDE ON THE ONE DISPLAY. IN MY NORMAL SCAN ON THE PRE-MERGER ACFT (THE ONE I HAVE FLOWN MOST), THE REMOTE DME WAS ALWAYS ASSOCIATED WITH THE #1 NAV. ON THE POST-MERGER ACFT WITH BOTH DME'S ON 1 DISPLAY, I BELIEVE I MISREAD IT BECAUSE I NORMALLY READ LEFT TO RIGHT AND I ASSUME THE DISPLAY CLOSEST TO MY HSI IS THE DME FOR MY HSI. NOT TRUE! WHAT I WAS REALLY DOING WAS XING 15 MI W OF MMJ AT 10000', 250 KTS. I ESTIMATE THAT I CROSSED 15 NM W OF WHEELING AT 12000-13000' AND 330 KTS. NOTHING WAS EVER SAID BY CTLR, BUT I THINK IT WAS A BIG ERROR ON MY PART THAT I MUST BE VERY CAREFUL ABOUT IN THE FUTURE. I THINK A STANDARD COCKPIT CONFIGN WOULD HELP SOLVE THIS TYPE PROB.

Data retrieved from NASA's ASRS site as of July 2007 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.