Narrative:

Departing livermore; ca; on the byron one SID. Our IFR clearance altitude was to climb to 4000 ft. It was the copilot's leg (PF). I had been busy loading passenger and had left the cockpit set-up duties to the copilot. After engine start; part of his pre-departure brief was 'climb to 4000.' the departure was retrieved from the database and inserted into the active flight plan page. I had looked at both SID's earlier in the day and not noticed anything unusual. Upon climbing through 3000 ft a message appeared on the FMS; 'check altitude constraint.' I then noticed the boxed note on the plan view that said; over reiga NDB; 'at or below 3000 ft.' this wording on the paper copy of the SID should be changed. It is not mentioned in the textual description. In contrast; on the livermore one departure; the altitude restr 'climb runway heading to 1200 ft' is in the text and plan view. Adding to the confusion under the text (on both); is altitude; 'maintain assigned altitude.' the proper wording; in both the plan and text; should be the same. There is no mention of a climb restr in the text of the byron one as there is in the livermore one SID.

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Original NASA ASRS Text

Title: C750 FLT CREW OVERSHOT ALT RESTRICTION ON BYRON DEP; LVK. ALT RESTRICTION IS DISPLAYED ON THE PLAN VIEW; BUT NOT IN TEXT.

Narrative: DEPARTING LIVERMORE; CA; ON THE BYRON ONE SID. OUR IFR CLRNC ALT WAS TO CLB TO 4000 FT. IT WAS THE COPLT'S LEG (PF). I HAD BEEN BUSY LOADING PAX AND HAD LEFT THE COCKPIT SET-UP DUTIES TO THE COPLT. AFTER ENG START; PART OF HIS PRE-DEP BRIEF WAS 'CLB TO 4000.' THE DEP WAS RETRIEVED FROM THE DATABASE AND INSERTED INTO THE ACTIVE FLT PLAN PAGE. I HAD LOOKED AT BOTH SID'S EARLIER IN THE DAY AND NOT NOTICED ANYTHING UNUSUAL. UPON CLBING THROUGH 3000 FT A MESSAGE APPEARED ON THE FMS; 'CHK ALT CONSTRAINT.' I THEN NOTICED THE BOXED NOTE ON THE PLAN VIEW THAT SAID; OVER REIGA NDB; 'AT OR BELOW 3000 FT.' THIS WORDING ON THE PAPER COPY OF THE SID SHOULD BE CHANGED. IT IS NOT MENTIONED IN THE TEXTUAL DESCRIPTION. IN CONTRAST; ON THE LIVERMORE ONE DEP; THE ALT RESTR 'CLB RWY HDG TO 1200 FT' IS IN THE TEXT AND PLAN VIEW. ADDING TO THE CONFUSION UNDER THE TEXT (ON BOTH); IS ALT; 'MAINTAIN ASSIGNED ALT.' THE PROPER WORDING; IN BOTH THE PLAN AND TEXT; SHOULD BE THE SAME. THERE IS NO MENTION OF A CLB RESTR IN THE TEXT OF THE BYRON ONE AS THERE IS IN THE LIVERMORE ONE SID.

Data retrieved from NASA's ASRS site as of May 2009 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.