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Altitude overshoot on the pdz arrival to lax during reprogramming of autoflt system because of a runway change.
| Attributes | |
| ACN | 496000 |
| Time | |
| Date | 200012 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| State Reference | CA |
| Altitude | msl bound lower : 11400 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : vacating altitude descent : intermediate altitude |
| Route In Use | arrival star : pdz.pdz4 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 24000 flight time type : 1125 |
| ASRS Report | 496000 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Approach control changed landing runway as we neared fix and about to level at 12000 ft. First officer was PNF and while changing runway, he also deleted the arrival. I was PF and looked down twice and thought that he was going to activate. He didn't. Plane was in descent and reverted to vertical speed mode, taking us 500-600 ft below the 12000 ft specified altitude. I activated correct approach, noticed altitude and immediately climbed back to 12000 ft. No conflict. No comment by approach control. No altitude warning in cockpit.
Original NASA ASRS Text
Title: ALT OVERSHOOT ON THE PDZ ARR TO LAX DURING REPROGRAMMING OF AUTOFLT SYS BECAUSE OF A RWY CHANGE.
Narrative: APCH CTL CHANGED LNDG RWY AS WE NEARED FIX AND ABOUT TO LEVEL AT 12000 FT. FO WAS PNF AND WHILE CHANGING RWY, HE ALSO DELETED THE ARR. I WAS PF AND LOOKED DOWN TWICE AND THOUGHT THAT HE WAS GOING TO ACTIVATE. HE DIDN'T. PLANE WAS IN DSCNT AND REVERTED TO VERT SPD MODE, TAKING US 500-600 FT BELOW THE 12000 FT SPECIFIED ALT. I ACTIVATED CORRECT APCH, NOTICED ALT AND IMMEDIATELY CLBED BACK TO 12000 FT. NO CONFLICT. NO COMMENT BY APCH CTL. NO ALT WARNING IN COCKPIT.
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.