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Starting an approach into pdx, flight crew workload increases. The captain misses arming the altitude alert and the first officer busts the altitude.
| Attributes | |
| ACN | 419250 |
| Time | |
| Date | 199811 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pdx airport : pdx |
| State Reference | OR |
| Altitude | msl bound lower : 2800 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pdx |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Flight Phase | descent : approach descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time total : 14000 flight time type : 2400 |
| ASRS Report | 419250 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : became reoriented flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were 12 mi heading south to intercept runway 10R localizer at pdx. We were cleared to 3000 ft. At 3200 ft I brought the power up to smooth the leveloff. The aircraft started to climb which set off the 250 ft chime. The captain canceled the alarm, but didn't re-arm the altitude alert. At the same time he did this, approach control turned us to intercept runway 10R localizer, giving heading and approach clearance. The captain missed the call so I answered. While doing this, I also pulled the power off to allow the aircraft to descend to 3000 ft. Localizer was captured for runway 10R. Approach control called out traffic -- we were descending through 3000 ft where we should have leveled off. Looking out for the traffic outside, we missed the altitude going through 2800 ft -- approach control told us to level off. We leveled off and never saw the traffic. This is a case of being overloaded for a short time. This event time frame was less than 1 min from beginning to end.
Original NASA ASRS Text
Title: STARTING AN APCH INTO PDX, FLC WORKLOAD INCREASES. THE CAPT MISSES ARMING THE ALT ALERT AND THE FO BUSTS THE ALT.
Narrative: WE WERE 12 MI HDG S TO INTERCEPT RWY 10R LOC AT PDX. WE WERE CLRED TO 3000 FT. AT 3200 FT I BROUGHT THE PWR UP TO SMOOTH THE LEVELOFF. THE ACFT STARTED TO CLB WHICH SET OFF THE 250 FT CHIME. THE CAPT CANCELED THE ALARM, BUT DIDN'T RE-ARM THE ALT ALERT. AT THE SAME TIME HE DID THIS, APCH CTL TURNED US TO INTERCEPT RWY 10R LOC, GIVING HDG AND APCH CLRNC. THE CAPT MISSED THE CALL SO I ANSWERED. WHILE DOING THIS, I ALSO PULLED THE PWR OFF TO ALLOW THE ACFT TO DSND TO 3000 FT. LOC WAS CAPTURED FOR RWY 10R. APCH CTL CALLED OUT TFC -- WE WERE DSNDING THROUGH 3000 FT WHERE WE SHOULD HAVE LEVELED OFF. LOOKING OUT FOR THE TFC OUTSIDE, WE MISSED THE ALT GOING THROUGH 2800 FT -- APCH CTL TOLD US TO LEVEL OFF. WE LEVELED OFF AND NEVER SAW THE TFC. THIS IS A CASE OF BEING OVERLOADED FOR A SHORT TIME. THIS EVENT TIME FRAME WAS LESS THAN 1 MIN FROM BEGINNING TO END.
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.