ZLA controller experienced operational error at approximately FL240 climbing psp departure aircraft through occupied altitude.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	684181
Time
Date	200601
Place
Locale Reference	atc facility : zla.artcc
State Reference	CA
Altitude	msl bound lower : 23000 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	common carrier : air carrier
Make Model Name	MD-83
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zla.artcc
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
ASRS Report	684181
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	aircraft equipment : tcas other controllera
Resolutory Action	flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 6000 vertical : 700
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

While working sector R-39 at the maximum allowable workload; my attention was focused on resolving several potential conflicts with eastbound traffic on rtes between pmd and blh. The air carrier MD83 called climbing out of the psp airport. I scanned out to find an altitude to climb to and missed traffic that was closer in proximity than where I was scanning. The pilot alerted me as to the proximity to other traffic. There was no warning from conflict alert; no advisory from oedp. I would have not known about the situation at all if the air carrier pilot had not made me aware.

Original NASA ASRS Text

Title: ZLA CTLR EXPERIENCED OPERROR AT APPROX FL240 CLBING PSP DEP ACFT THROUGH OCCUPIED ALT.

Narrative: WHILE WORKING SECTOR R-39 AT THE MAX ALLOWABLE WORKLOAD; MY ATTN WAS FOCUSED ON RESOLVING SEVERAL POTENTIAL CONFLICTS WITH EBOUND TFC ON RTES BTWN PMD AND BLH. THE ACR MD83 CALLED CLBING OUT OF THE PSP ARPT. I SCANNED OUT TO FIND AN ALT TO CLB TO AND MISSED TFC THAT WAS CLOSER IN PROX THAN WHERE I WAS SCANNING. THE PLT ALERTED ME AS TO THE PROX TO OTHER TFC. THERE WAS NO WARNING FROM CONFLICT ALERT; NO ADVISORY FROM OEDP. I WOULD HAVE NOT KNOWN ABOUT THE SITUATION AT ALL IF THE ACR PLT HAD NOT MADE ME AWARE.

Data retrieved from NASA's ASRS site as of January 2009 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.