An air carrier L1011 off runway 25R at lax at the same time an air carrier DC10 takeoff from runway 24L and the L1011 failed to make the turn as published on the SID. ATCT local controller saw this, but had already given the aircraft a frequency change to departure control. Coordination between tower and departure control was not timely enough to prevent a loss of separation.

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Attributes
ACN	349879
Time
Date	199610
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	msl bound lower : 1500 msl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax tower : lax
Operator	common carrier : air carrier
Make Model Name	DC-10 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : initial
Route In Use	departure other departure sid : sid
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	L-1011 Tri-Star All Series
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : initial
Route In Use	departure other departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller non radar : 1 controller radar : 13
ASRS Report	349879
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 4800 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X (DC10) runway 24L departure, air carrier Y (L1011) runway 25R departure. Air carrier Y should have turned left to 220 degrees but did not. Lax tower called me to obtain visual separation between these aircraft. I immediately told the other departure radar position to turn air carrier Y, which they told me they had already done. I idented air carrier X, but did not attempt visual separation since course divergence was already in effect. Lax tower is responsible to ensure initial departure separation. The fact that air carrier Y did not turn and the tower was no longer communicating with either aircraft made it impossible for them to do their job - - yet another example of lax tower failing to separate aircraft.

Original NASA ASRS Text

Title: AN ACR L1011 OFF RWY 25R AT LAX AT THE SAME TIME AN ACR DC10 TKOF FROM RWY 24L AND THE L1011 FAILED TO MAKE THE TURN AS PUBLISHED ON THE SID. ATCT LCL CTLR SAW THIS, BUT HAD ALREADY GIVEN THE ACFT A FREQ CHANGE TO DEP CTL. COORD BTWN TWR AND DEP CTL WAS NOT TIMELY ENOUGH TO PREVENT A LOSS OF SEPARATION.

Narrative: ACR X (DC10) RWY 24L DEP, ACR Y (L1011) RWY 25R DEP. ACR Y SHOULD HAVE TURNED L TO 220 DEGS BUT DID NOT. LAX TWR CALLED ME TO OBTAIN VISUAL SEPARATION BTWN THESE ACFT. I IMMEDIATELY TOLD THE OTHER DEP RADAR POS TO TURN ACR Y, WHICH THEY TOLD ME THEY HAD ALREADY DONE. I IDENTED ACR X, BUT DID NOT ATTEMPT VISUAL SEPARATION SINCE COURSE DIVERGENCE WAS ALREADY IN EFFECT. LAX TWR IS RESPONSIBLE TO ENSURE INITIAL DEP SEPARATION. THE FACT THAT ACR Y DID NOT TURN AND THE TWR WAS NO LONGER COMMUNICATING WITH EITHER ACFT MADE IT IMPOSSIBLE FOR THEM TO DO THEIR JOB - - YET ANOTHER EXAMPLE OF LAX TWR FAILING TO SEPARATE ACFT.

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.