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An air carrier pilot descending on the pdx bonvl five STAR was low at the rainr intersection because of confusion created by the text boxes that he was unaccustomed to.
| Attributes | |
| ACN | 793173 |
| Time | |
| Date | 200806 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | intersection : rainr |
| State Reference | OR |
| Altitude | msl single value : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zse.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : bonvl |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 18000 flight time type : 12000 |
| ASRS Report | 793123 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : published procedure non adherence : far non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Chart Or Publication |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Possible altitude deviation on STAR -- descend via -- bonvl 5 arrival landing runways 28 (pdx airport). Captain flying; I was pilot monitoring. On arrival STAR into pdx; we descended to about 12000 ft at rainr intersection. Profile descent altitude at that point is 'at or above 13000 ft MSL.' the captain became confused by the notes (3) that are inside the 'at or above altitude' boxes. (3) and (4) notes are enclosed in 'boxed' notes on the page and at the bonvl intersection restr box. What is meant as a helpful reminder can be confusing! I don't recall seeing this format before (I could be wrong?). Anyway; we may have descended below our altitude and before I could convince the captain of the proper altitudes to fly (at or above for all runways); the controller called and gave us a new altitude of 7000 ft MSL. The rest of the flight was normal.
Original NASA ASRS Text
Title: AN ACR PILOT DSNDING ON THE PDX BONVL FIVE STAR WAS LOW AT THE RAINR INTXN BECAUSE OF CONFUSION CREATED BY THE TEXT BOXES THAT HE WAS UNACCUSTOMED TO.
Narrative: POSSIBLE ALTDEV ON STAR -- DSND VIA -- BONVL 5 ARR LNDG RWYS 28 (PDX ARPT). CAPT FLYING; I WAS PLT MONITORING. ON ARR STAR INTO PDX; WE DSNDED TO ABOUT 12000 FT AT RAINR INTXN. PROFILE DSCNT ALT AT THAT POINT IS 'AT OR ABOVE 13000 FT MSL.' THE CAPT BECAME CONFUSED BY THE NOTES (3) THAT ARE INSIDE THE 'AT OR ABOVE ALT' BOXES. (3) AND (4) NOTES ARE ENCLOSED IN 'BOXED' NOTES ON THE PAGE AND AT THE BONVL INTXN RESTR BOX. WHAT IS MEANT AS A HELPFUL REMINDER CAN BE CONFUSING! I DON'T RECALL SEEING THIS FORMAT BEFORE (I COULD BE WRONG?). ANYWAY; WE MAY HAVE DSNDED BELOW OUR ALT AND BEFORE I COULD CONVINCE THE CAPT OF THE PROPER ALTS TO FLY (AT OR ABOVE FOR ALL RWYS); THE CTLR CALLED AND GAVE US A NEW ALT OF 7000 FT MSL. THE REST OF THE FLT WAS NORMAL.
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.