Flight crew of medium large transport departing lgb misunderstood departure clearance turn at 1500'. Read back turn at 4500'. Controller querried flight at 3000'.

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Attributes
ACN	173737
Time
Date	199103
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lgb
State Reference	CA
Altitude	msl bound lower : 3000 msl bound upper : 4500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sna tower : cak
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 180 flight time total : 8000 flight time type : 1200
ASRS Report	173737
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 180 flight time total : 3000 flight time type : 310
ASRS Report	173738
Events
Anomaly	altitude deviation : overshoot conflict : airborne less severe non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : became reoriented other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Clearance was read back climb to 3000' upon runway heading at 4500' turn left to 180 degree heading. After takeoff level at 3000' departure said we had missed our turn. We had told him we were instructed to turn at 4500'. He then gave us a tight turn to 170 degree and issued traffic. TCAS gave us a resolution to descend 2000 FPM. We then saw the traffic no descent was required. Supplemental information from acn 173738. Clearance was given left turn to 180 degree at 1500' MSL; readback was left to 180 degree at 4500' MSL with clearance to 3000' MSL.

Original NASA ASRS Text

Title: FLT CREW OF MLG DEPARTING LGB MISUNDERSTOOD DEP CLRNC TURN AT 1500'. READ BACK TURN AT 4500'. CTLR QUERRIED FLT AT 3000'.

Narrative: CLRNC WAS READ BACK CLB TO 3000' UPON RWY HDG AT 4500' TURN L TO 180 DEG HDG. AFTER TKOF LEVEL AT 3000' DEP SAID WE HAD MISSED OUR TURN. WE HAD TOLD HIM WE WERE INSTRUCTED TO TURN AT 4500'. HE THEN GAVE US A TIGHT TURN TO 170 DEG AND ISSUED TFC. TCAS GAVE US A RESOLUTION TO DSND 2000 FPM. WE THEN SAW THE TFC NO DSNT WAS REQUIRED. SUPPLEMENTAL INFO FROM ACN 173738. CLRNC WAS GIVEN L TURN TO 180 DEG AT 1500' MSL; READBACK WAS L TO 180 DEG AT 4500' MSL WITH CLRNC TO 3000' MSL.

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.