Sct controller described a conflict event involving traffic off psp; the reporter noting the MVA rul...

Narrative:

Air carrier X was released on the departure. The current rule at psp is that the MVA's are the depicted terrain; so we are not allowed to vector away from the higher terrain. Air carrier X started his turn onto the SID; traffic was called; air carrier X had traffic in sight. Being below the MVA; I could not turn him. Air carrier X reported that he had to take evasive action to avoid the traffic. I turned air carrier X when able; and due to his evasive action; he had descended below the next MVA. Air carrier X was asked if he could maintain his own terrain separation; and did. Recommendation; something needs to be done about the instruction 'the MVA's are your depicted terrain'. We should be able to vector away from the higher terrain on departures. We also need 'multilateration'; I believe it's called; in the banning pass. This is a highly traveled pass that is not under radar coverage from either side. It would not have stopped this event; but it would many others.

Original NASA ASRS Text

Title: SCT controller described a conflict event involving traffic off PSP; the reporter noting the MVA rules prohibited a directed turn which contributed to the event.

Narrative: Air Carrier X was released on the departure. The current rule at PSP is that the MVA's are the depicted terrain; so we are not allowed to vector away from the higher terrain. Air Carrier X started his turn onto the SID; traffic was called; Air Carrier X had traffic in sight. Being below the MVA; I could not turn him. Air Carrier X reported that he had to take evasive action to avoid the traffic. I turned Air Carrier X when able; and due to his evasive action; he had descended below the next MVA. Air Carrier X was asked if he could maintain his own terrain separation; and did. Recommendation; something needs to be done about the instruction 'the MVA's ARE your depicted terrain'. We should be able to vector away from the higher terrain on departures. We also need 'multilateration'; I believe it's called; in the Banning Pass. This is a highly traveled pass that is not under RADAR coverage from either side. It would not have stopped this event; but it would many others.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	889235
Time
Date	201005
Local Time Of Day	1201-1800
Place
Locale Reference	PSP.Airport
State Reference	CA
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Climb
Route In Use	SID CATHEDRAL ONE
Flight Plan	IFR
Person 1
Function	Handoff / Assist Approach Departure
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy

Sct controller described a conflict event involving traffic off psp; the reporter noting the MVA rules prohibited a directed turn which contributed to the event.