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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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A B737 crew programmed the lax riivr one runway 25L. Runway 24R was assigned but crew could not change the FMS fast enough and got high and fast.
| Attributes | |
| ACN | 793522 |
| Time | |
| Date | 200807 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 175 flight time total : 22500 flight time type : 8000 |
| ASRS Report | 793522 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance non adherence : published procedure other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to original clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Airspace Structure |
| Primary Problem | Airspace Structure |
Narrative:
ATC issued clearance to descend via riivr arrival (STAR) changed runway from runway 25L to runway 24R (lax). We crossed assigned fix 700 ft high. Required to cross at 9800 ft to 9000 ft and we crossed at 10500 ft. Also aircraft accelerated to 265 KTS below 10000 ft. Adjusted aircraft speed and flight path. All other restrs were met and complied with. FMC was not able to keep up with changes and restrs; especially with runway change. Took over from autoflt to manual to comply but still crossed 700 ft high and fast below 10000 ft. I should have been ahead of autoflt and taken over in manual flight sooner.
Original NASA ASRS Text
Title: A B737 CREW PROGRAMMED THE LAX RIIVR ONE RWY 25L. RWY 24R WAS ASSIGNED BUT CREW COULD NOT CHANGE THE FMS FAST ENOUGH AND GOT HIGH AND FAST.
Narrative: ATC ISSUED CLRNC TO DSND VIA RIIVR ARR (STAR) CHANGED RWY FROM RWY 25L TO RWY 24R (LAX). WE CROSSED ASSIGNED FIX 700 FT HIGH. REQUIRED TO CROSS AT 9800 FT TO 9000 FT AND WE CROSSED AT 10500 FT. ALSO ACFT ACCELERATED TO 265 KTS BELOW 10000 FT. ADJUSTED ACFT SPEED AND FLT PATH. ALL OTHER RESTRS WERE MET AND COMPLIED WITH. FMC WAS NOT ABLE TO KEEP UP WITH CHANGES AND RESTRS; ESPECIALLY WITH RWY CHANGE. TOOK OVER FROM AUTOFLT TO MANUAL TO COMPLY BUT STILL CROSSED 700 FT HIGH AND FAST BELOW 10000 FT. I SHOULD HAVE BEEN AHEAD OF AUTOFLT AND TAKEN OVER IN MANUAL FLT SOONER.
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.