Medium large transport made a late turn on SID and conflicted with an small transport. No loss of se...

Attributes
ACN	110147
Time
Date	198905
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ont
State Reference	CA
Altitude	msl bound lower : 1000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ont tower : jfk
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : sid enroute airway : ont
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
ASRS Report	110147
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe other anomaly other other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure other
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Medium large transport departed ontario via prado 2 SID. The SID does not require a restriction as to when the left turn must be started. This is complicated by noise abatement posted at runway requiring no turn before 2000'. This causes large differences in the execution of the SID. Because pomona sector's airspace is violated by the departure yet ral sector releases and talks to the aircraft on initial contact it creates an unsafe condition in the pomona sector. The medium large transport flew 16 mi through pomona's airspace creating an uncontrollable situation with a high performance aircraft in a climb and turn conflicting with low performance aircraft (small transport). A ucr has previously been filed on this procedure.

Original NASA ASRS Text

Title: MLG MADE A LATE TURN ON SID AND CONFLICTED WITH AN SMT. NO LOSS OF SEPARATION.

Narrative: MLG DEPARTED ONTARIO VIA PRADO 2 SID. THE SID DOES NOT REQUIRE A RESTRICTION AS TO WHEN THE LEFT TURN MUST BE STARTED. THIS IS COMPLICATED BY NOISE ABATEMENT POSTED AT RWY REQUIRING NO TURN BEFORE 2000'. THIS CAUSES LARGE DIFFERENCES IN THE EXECUTION OF THE SID. BECAUSE POMONA SECTOR'S AIRSPACE IS VIOLATED BY THE DEP YET RAL SECTOR RELEASES AND TALKS TO THE ACFT ON INITIAL CONTACT IT CREATES AN UNSAFE CONDITION IN THE POMONA SECTOR. THE MLG FLEW 16 MI THROUGH POMONA'S AIRSPACE CREATING AN UNCONTROLLABLE SITUATION WITH A HIGH PERFORMANCE ACFT IN A CLIMB AND TURN CONFLICTING WITH LOW PERFORMANCE ACFT (SMT). A UCR HAS PREVIOUSLY BEEN FILED ON THIS PROC.

Data retrieved from NASA's ASRS site as of August 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.

Medium large transport made a late turn on SID and conflicted with an small transport. No loss of separation.