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A later runway change; a busy approach controller and a possible missed clearance cause confusion on the seavu arrival to lax by an A320.
| Attributes | |
| ACN | 719164 |
| Time | |
| Date | 200612 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lsxm.airport |
| State Reference | CA |
| Altitude | msl single value : 6000 |
| Environment | |
| Weather Elements | other |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival star : seavu.one |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 100 flight time total : 9000 flight time type : 6000 |
| ASRS Report | 719164 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 60 flight time total : 8000 flight time type : 2000 |
| ASRS Report | 719163 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance FAA ATC Human Performance Chart Or Publication |
| Primary Problem | Ambiguous |
Narrative:
Conducted normal approach briefing. We were planning the SEAVU1 to runway 25R then changed to SEAVU1 runway 24R. Briefed and rebriefed. Passing palac intersection at 7000 ft per the SID. We descended to 4000 ft for the next crossing (at or above 4000 ft). At 6000 ft at PAL06 we think that approach clearance was not given. The first officer leveled off and I requested approach clearance. We continued for an otherwise normal approach and landing. We think the controller forgot to issue clearance as he was very busy. However he very well may have given us clearance earlier; but neither of us remember hearing or responding. This is a very confusing approach to 3 possible runways. Also in the FMGC there is a point called PAL06 which is not on the STAR or approach charts.
Original NASA ASRS Text
Title: A LATER RWY CHANGE; A BUSY APCH CTLR AND A POSSIBLE MISSED CLRNC CAUSE CONFUSION ON THE SEAVU ARR TO LAX BY AN A320.
Narrative: CONDUCTED NORMAL APCH BRIEFING. WE WERE PLANNING THE SEAVU1 TO RWY 25R THEN CHANGED TO SEAVU1 RWY 24R. BRIEFED AND REBRIEFED. PASSING PALAC INTXN AT 7000 FT PER THE SID. WE DSNDED TO 4000 FT FOR THE NEXT XING (AT OR ABOVE 4000 FT). AT 6000 FT AT PAL06 WE THINK THAT APCH CLRNC WAS NOT GIVEN. THE FO LEVELED OFF AND I REQUESTED APCH CLRNC. WE CONTINUED FOR AN OTHERWISE NORMAL APCH AND LNDG. WE THINK THE CTLR FORGOT TO ISSUE CLRNC AS HE WAS VERY BUSY. HOWEVER HE VERY WELL MAY HAVE GIVEN US CLRNC EARLIER; BUT NEITHER OF US REMEMBER HEARING OR RESPONDING. THIS IS A VERY CONFUSING APCH TO 3 POSSIBLE RWYS. ALSO IN THE FMGC THERE IS A POINT CALLED PAL06 WHICH IS NOT ON THE STAR OR APCH CHARTS.
Data retrieved from NASA's ASRS site as of January 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.