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An A320 on an lax arrival was changed from 25L to 24R at 12000 ft. While selecting the new runway; the aircraft descended to 8000 ft at 300 KT missing the 9000 ft constraint.
| Attributes | |
| ACN | 776885 |
| Time | |
| Date | 200803 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| 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 |
| Route In Use | arrival star : riivr |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 130 flight time total : 10544 flight time type : 130 |
| ASRS Report | 776885 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance non adherence : far non adherence : published procedure other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Around 12000 ft MSL; socal decided to change our landing runway and cleared us to land on runway 24R instead of runway 25L. PIC selected heading mode and asked me to load new runway into FMS. By the time I finished and looked outside; we were at 8000 ft and doing about 300 KTS instead of being between 9800/9000 ft and 250 KTS. This incident has several causes; fatigue (coming from the east coast); change of runway by socal at a very busy time in the approach and 2 pilots with their heads down in the flight deck at the same time. To alleviate this kind of incident; flight crews should follow procedures and ATC should limit last minute changes when possible; especially around 10000 ft MSL.
Original NASA ASRS Text
Title: AN A320 ON AN LAX ARR WAS CHANGED FROM 25L TO 24R AT 12000 FT. WHILE SELECTING THE NEW RWY; THE ACFT DSNDED TO 8000 FT AT 300 KT MISSING THE 9000 FT CONSTRAINT.
Narrative: AROUND 12000 FT MSL; SOCAL DECIDED TO CHANGE OUR LNDG RWY AND CLRED US TO LAND ON RWY 24R INSTEAD OF RWY 25L. PIC SELECTED HDG MODE AND ASKED ME TO LOAD NEW RWY INTO FMS. BY THE TIME I FINISHED AND LOOKED OUTSIDE; WE WERE AT 8000 FT AND DOING ABOUT 300 KTS INSTEAD OF BEING BTWN 9800/9000 FT AND 250 KTS. THIS INCIDENT HAS SEVERAL CAUSES; FATIGUE (COMING FROM THE EAST COAST); CHANGE OF RWY BY SOCAL AT A VERY BUSY TIME IN THE APCH AND 2 PLTS WITH THEIR HEADS DOWN IN THE FLT DECK AT THE SAME TIME. TO ALLEVIATE THIS KIND OF INCIDENT; FLT CREWS SHOULD FOLLOW PROCS AND ATC SHOULD LIMIT LAST MINUTE CHANGES WHEN POSSIBLE; ESPECIALLY AROUND 10000 FT MSL.
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.