B727 aircraft on takeoff roll was questioned twice by ATCT local controller. Inappropriate time to be asking questions of flight crew. Again after takeoff controller gave instructions that flight crew didn't hear and had to clarify. Reporter captain says the disruptive communication could have contributed to deviation from noise abatement climb.

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Attributes
ACN	375510
Time
Date	199707
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lgb
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : dfw
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : atp
Experience	flight time total : 6000 flight time type : 1000
ASRS Report	375510
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

B727 in position and hold on runway 30 lgb, several GA aircraft taking off and landing runway 25R. Captain's takeoff due to company policy to comply with strict noise abatement takeoff profile. During takeoff roll at 80 KTS (a PNF callout) tower controller asked us a question about our new clearance. Same controller broke in again just prior to V1. After handoff to departure, controller assigned a heading of 250 degrees and stated 'maintain 250 KTS.' we were at about 800 ft AGL. First officer did not hear airspeed assignment. There was some discussion, climb power was applied a little later than called for in the noise abatement departure profile. The controller was queried about the heading and airspeed assignment. I feel that it was not in the interest of safety that a tower controller would communicate such low priority information during a takeoff roll, a very critical phase of flight. It also added to the number of distractions departing out of a noise sensitive, high traffic density airport that may have contributed to a possible noise abatement departure procedure excursion.

Original NASA ASRS Text

Title: B727 ACFT ON TKOF ROLL WAS QUESTIONED TWICE BY ATCT LCL CTLR. INAPPROPRIATE TIME TO BE ASKING QUESTIONS OF FLC. AGAIN AFTER TKOF CTLR GAVE INSTRUCTIONS THAT FLC DIDN'T HEAR AND HAD TO CLARIFY. RPTR CAPT SAYS THE DISRUPTIVE COM COULD HAVE CONTRIBUTED TO DEV FROM NOISE ABATEMENT CLB.

Narrative: B727 IN POS AND HOLD ON RWY 30 LGB, SEVERAL GA ACFT TAKING OFF AND LNDG RWY 25R. CAPT'S TKOF DUE TO COMPANY POLICY TO COMPLY WITH STRICT NOISE ABATEMENT TKOF PROFILE. DURING TKOF ROLL AT 80 KTS (A PNF CALLOUT) TWR CTLR ASKED US A QUESTION ABOUT OUR NEW CLRNC. SAME CTLR BROKE IN AGAIN JUST PRIOR TO V1. AFTER HDOF TO DEP, CTLR ASSIGNED A HDG OF 250 DEGS AND STATED 'MAINTAIN 250 KTS.' WE WERE AT ABOUT 800 FT AGL. FO DID NOT HEAR AIRSPD ASSIGNMENT. THERE WAS SOME DISCUSSION, CLB PWR WAS APPLIED A LITTLE LATER THAN CALLED FOR IN THE NOISE ABATEMENT DEP PROFILE. THE CTLR WAS QUERIED ABOUT THE HEADING AND AIRSPD ASSIGNMENT. I FEEL THAT IT WAS NOT IN THE INTEREST OF SAFETY THAT A TWR CTLR WOULD COMMUNICATE SUCH LOW PRIORITY INFO DURING A TKOF ROLL, A VERY CRITICAL PHASE OF FLT. IT ALSO ADDED TO THE NUMBER OF DISTRACTIONS DEPARTING OUT OF A NOISE SENSITIVE, HIGH TFC DENSITY ARPT THAT MAY HAVE CONTRIBUTED TO A POSSIBLE NOISE ABATEMENT DEP PROC EXCURSION.

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.