<< >> NASA ASRS Report 165709, December 1990

Initial clearance to air carrier was to fly SID, but as aircraft took runway was given a specific heading to fly and an altitude assignment. Few SID anyway and ATC upset.

Attributes
ACN	165709
Time
Date	199012
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : initial climbout : takeoff
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 18000 flight time type : 1500
ASRS Report	165709
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were cleared on clearance delivery: san diego flipr 4 mission bay transition direct, except after crossing smo 154 degree right turn left heading 220 degrees for vectors to mission bay. Notice that the flipr 4 is a turn to 250 degrees after takeoff. As we taxied onto the runway, controller said to fly 250 degree heading and maintain 8000'. After takeoff the first officer flying crossed the smo 154 degree right and turned left to 220 degrees. This apparently upset the departure controller. If the new clearance we got as we taxied into position voided the old clearance, it was not made clear to us. The heading we were to fly, 250 degrees, was the same one we were supposed to fly. Was the controller issuing a new clearance, or just reaffirming what to do? I still don't know. It does not make good sense to issue a clearance and then routinely change it to a different one. Lax, in general, is poor about radio technique (speaking clearly), using slang and non standard phraseology.

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Original NASA ASRS Text

Title: INITIAL CLRNC TO ACR WAS TO FLY SID, BUT AS ACFT TOOK RWY WAS GIVEN A SPECIFIC HEADING TO FLY AND AN ALT ASSIGNMENT. FEW SID ANYWAY AND ATC UPSET.

Narrative: WE WERE CLRED ON CLRNC DELIVERY: SAN DIEGO FLIPR 4 MISSION BAY TRANSITION DIRECT, EXCEPT AFTER XING SMO 154 DEG R TURN LEFT HDG 220 DEGS FOR VECTORS TO MISSION BAY. NOTICE THAT THE FLIPR 4 IS A TURN TO 250 DEGS AFTER TKOF. AS WE TAXIED ONTO THE RWY, CTLR SAID TO FLY 250 DEG HDG AND MAINTAIN 8000'. AFTER TKOF THE F/O FLYING CROSSED THE SMO 154 DEG R AND TURNED LEFT TO 220 DEGS. THIS APPARENTLY UPSET THE DEP CTLR. IF THE NEW CLRNC WE GOT AS WE TAXIED INTO POS VOIDED THE OLD CLRNC, IT WAS NOT MADE CLR TO US. THE HDG WE WERE TO FLY, 250 DEGS, WAS THE SAME ONE WE WERE SUPPOSED TO FLY. WAS THE CTLR ISSUING A NEW CLRNC, OR JUST REAFFIRMING WHAT TO DO? I STILL DON'T KNOW. IT DOES NOT MAKE GOOD SENSE TO ISSUE A CLRNC AND THEN ROUTINELY CHANGE IT TO A DIFFERENT ONE. LAX, IN GENERAL, IS POOR ABOUT RADIO TECHNIQUE (SPEAKING CLEARLY), USING SLANG AND NON STANDARD PHRASEOLOGY.

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.