Narrative:

During the initial approach phase via the seter two arrival into ont; ATC had cleared us direct petis once crossing the fix bands. With only one set of charts available I confirmed the location of bands with the non-flying pilot who; as per our company operations; keeps the only available chart for reference. Bands is located 21NM from psp on R260; this fix is also a changeover point to pdz where the charted arrival has you turn direct petis once over seter; located 21NM from pdz R078. Both of us confirmed the distance for bands was 21NM. During the time we crossed bands the non-flying pilot was performing other duties necessary for the safety of flight; as the flying pilot I did not have a chart to reference during this time. Bands and seter are both 21nm from their respective NAVAID; I changed over vors and continued on the published approach expecting to turn 21NM from pdz (seter). It was at this time ATC cleared us direct petis. The non-flying pilot referenced the chart after completing his other duties and immediately noticed we had just passed bands. It is increasingly difficult to operate in high workload environments with only one set of charts between two pilots. I feel if we both had our own charts available it would have been much easier to identify the location of the fix together. While crossing over bands; if I had a chart available; I would have been able to cross check my position and likely make the appropriate turn.

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Original NASA ASRS Text

Title: Confusing course configuration on a STAR combined with company policy of only one set of charts for two pilots resulted in a course deviation for a Beechcraft 1900 flight crew.

Narrative: During the initial approach phase via the SETER TWO ARRIVAL into ONT; ATC had cleared us direct PETIS once crossing the fix BANDS. With only one set of charts available I confirmed the location of BANDS with the non-flying pilot who; as per our company operations; keeps the only available chart for reference. BANDS is located 21NM from PSP on R260; this fix is also a changeover point to PDZ where the charted arrival has you turn direct PETIS once over SETER; located 21NM from PDZ R078. Both of us confirmed the distance for BANDS was 21NM. During the time we crossed BANDS the non-flying pilot was performing other duties necessary for the safety of flight; as the flying pilot I did not have a chart to reference during this time. BANDS and SETER are both 21nm from their respective NAVAID; I changed over VORs and continued on the published approach expecting to turn 21NM from PDZ (SETER). It was at this time ATC cleared us direct PETIS. The non-flying pilot referenced the chart after completing his other duties and immediately noticed we had just passed BANDS. It is increasingly difficult to operate in high workload environments with only one set of charts between two pilots. I feel if we both had our own charts available it would have been much easier to identify the location of the fix together. While crossing over BANDS; if I had a chart available; I would have been able to cross check my position and likely make the appropriate turn.

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.