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A321 flight crew accepts controller's modification to published departure and is unable to make crossing restr due to performance limitation of aircraft departing lax.
| Attributes | |
| ACN | 522510 |
| Time | |
| Date | 200108 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A321 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : loop 2 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 11000 flight time type : 1600 |
| ASRS Report | 522510 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : published procedure non adherence : clearance |
| Resolutory Action | controller : provided flight assist controller : issued new clearance |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Originally filed LAXX3 departure out of lax, but was reclred via loop 2. Departed runway 24L at XA10Z. Performed modified climb reducing takeoff power at 3000 ft AGL rather than normal 1000 ft AGL due to poor climb performance of A321 aircraft and altitude restrs on loop 2 departure. Controller gave an early turn back to lax VOR to proceed with departure. When established direct to VOR informed controller aircraft was unable to make restr over lax. Controller gave heading of 090 degrees followed by a 010 degree heading to resume SID and then gave a number to call upon arrival in phl. Cause of the problem is the poor performance of the A321 at high gross weights. Dispatchers are aware and file LAXX3 departure and training department has modified departure procedures to insure compliance with restrs. ATC should not change filed procedure and then give early turns when departing. A321 has been operating into lax for quite some time and ATC should be aware of poor performance of aircraft and should be informing ATC of this problem so further altdevs will not occur.
Original NASA ASRS Text
Title: A321 FLT CREW ACCEPTS CTLR'S MODIFICATION TO PUBLISHED DEP AND IS UNABLE TO MAKE XING RESTR DUE TO PERFORMANCE LIMITATION OF ACFT DEPARTING LAX.
Narrative: ORIGINALLY FILED LAXX3 DEP OUT OF LAX, BUT WAS RECLRED VIA LOOP 2. DEPARTED RWY 24L AT XA10Z. PERFORMED MODIFIED CLB REDUCING TKOF PWR AT 3000 FT AGL RATHER THAN NORMAL 1000 FT AGL DUE TO POOR CLB PERFORMANCE OF A321 ACFT AND ALT RESTRS ON LOOP 2 DEP. CTLR GAVE AN EARLY TURN BACK TO LAX VOR TO PROCEED WITH DEP. WHEN ESTABLISHED DIRECT TO VOR INFORMED CTLR ACFT WAS UNABLE TO MAKE RESTR OVER LAX. CTLR GAVE HEADING OF 090 DEGS FOLLOWED BY A 010 DEG HDG TO RESUME SID AND THEN GAVE A NUMBER TO CALL UPON ARR IN PHL. CAUSE OF THE PROB IS THE POOR PERFORMANCE OF THE A321 AT HIGH GROSS WTS. DISPATCHERS ARE AWARE AND FILE LAXX3 DEP AND TRAINING DEPT HAS MODIFIED DEP PROCS TO INSURE COMPLIANCE WITH RESTRS. ATC SHOULD NOT CHANGE FILED PROC AND THEN GIVE EARLY TURNS WHEN DEPARTING. A321 HAS BEEN OPERATING INTO LAX FOR QUITE SOME TIME AND ATC SHOULD BE AWARE OF POOR PERFORMANCE OF ACFT AND SHOULD BE INFORMING ATC OF THIS PROB SO FURTHER ALTDEVS WILL NOT OCCUR.
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.