Air carrier medium large transport set off noise monitor on SID from sna.

Attributes
ACN	196543
Time
Date	199112
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : sna
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : sna
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : initial climbout : intermediate altitude
Route In Use	departure : noise abatement departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 300 flight time total : 10000
ASRS Report	196543
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	non adherence : published procedure non adherence : clearance non adherence other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Coming out of sna I set off 2 of the noise monitors. I was exactly on my vertical profile at 1000 ft calling for autoplt on and IAS hold when a TCASII TA came on. Our attention was diverted to the potential traffic. Unfortunately, tower gave us a frequency change at this time, diverting our attention more. I go back to instruments and the copilot changes frequencys. I am at 1.3 DME and start my turn. Departure gives us an immediate level off at 2000 ft (1000 ft below required for noise abatement). This is due to the traffic TCASII warned us about. I level off and attempt to return to my appropriate course. Before takeoff I had to add fuel for a WX alternate which made us too heavy to miss the first noise monitor. Then once I had missed my turn due to interruptions by TCASII and tower, I could have corrected to course, but there is no positive course guidance, and if this is so important, then it should be available. Also, having been instructed to level off, even if I were close, and I believe I was, I still would have set off the third monitor. I should not have been cleared for takeoff until that traffic threat was clear.

Original NASA ASRS Text

Title: ACR MLG SET OFF NOISE MONITOR ON SID FROM SNA.

Narrative: COMING OUT OF SNA I SET OFF 2 OF THE NOISE MONITORS. I WAS EXACTLY ON MY VERT PROFILE AT 1000 FT CALLING FOR AUTOPLT ON AND IAS HOLD WHEN A TCASII TA CAME ON. OUR ATTN WAS DIVERTED TO THE POTENTIAL TFC. UNFORTUNATELY, TWR GAVE US A FREQ CHANGE AT THIS TIME, DIVERTING OUR ATTN MORE. I GO BACK TO INSTS AND THE COPLT CHANGES FREQS. I AM AT 1.3 DME AND START MY TURN. DEP GIVES US AN IMMEDIATE LEVEL OFF AT 2000 FT (1000 FT BELOW REQUIRED FOR NOISE ABATEMENT). THIS IS DUE TO THE TFC TCASII WARNED US ABOUT. I LEVEL OFF AND ATTEMPT TO RETURN TO MY APPROPRIATE COURSE. BEFORE TKOF I HAD TO ADD FUEL FOR A WX ALTERNATE WHICH MADE US TOO HVY TO MISS THE FIRST NOISE MONITOR. THEN ONCE I HAD MISSED MY TURN DUE TO INTERRUPTIONS BY TCASII AND TWR, I COULD HAVE CORRECTED TO COURSE, BUT THERE IS NO POSITIVE COURSE GUIDANCE, AND IF THIS IS SO IMPORTANT, THEN IT SHOULD BE AVAILABLE. ALSO, HAVING BEEN INSTRUCTED TO LEVEL OFF, EVEN IF I WERE CLOSE, AND I BELIEVE I WAS, I STILL WOULD HAVE SET OFF THE THIRD MONITOR. I SHOULD NOT HAVE BEEN CLRED FOR TKOF UNTIL THAT TFC THREAT WAS CLR.

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.