Narrative:

Turn on SID without clearance. Departing lax runway 7L on the perch SID, approaching 2000 ft, we were told to contact departure. Assigned frequency from clearance delivery 124.3 (concurred with SID). However, the controller on that frequency told us 'assigned frequency in error, contact socal on 125.2.' by this time we were passing 2000 ft, and per SID started our right turn to 250 degrees. When we established communication on 125.2, controller (after a few seconds) asked if we were in a turn, and if so whether it was assigned on takeoff. He gave us a vector of 180 degrees, we complied and queried him about the depicted turn passing 2000 ft (however also shown as lax 8 DME on the SID verbiage). After further review and discussion, it was evident that the heading (070 degrees) should have been maintained by us on departure, we should not have considered the delay in establishing communication as authority/authorized to fly the loss of communication procedure (which in itself is ambiguous, 2000 ft, or 8 DME). Controller reported no conflict at the time. Supplemental information from acn 603951: on the pre-departure clearance received from ACARS, the departure frequency was 125.2. After takeoff, tower directed us to contact departure control. We switched over to 125.2, called, but did not get an answer. We then followed the 'lost communication procedures' on the SID which directed us to turn right to 250 degrees at 2000 ft MSL. We started the right turn and a controller came on the frequency and said contact departure control on frequency 124.3.

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Original NASA ASRS Text

Title: B767 CREW WAS FLYING THE PERCH NINE SID. THEY WERE GIVEN A WRONG DEP FREQ. IN THE DELAY, THEY BEGAN TO FLY THE LOST COM PROC. THE CHART SHOWS A TURN REACHING 2000 FT, AND THE LOST COM PROC SMALL PRINT VERBIAGE, SHOWS REACHING LAX 8 DME.

Narrative: TURN ON SID WITHOUT CLRNC. DEPARTING LAX RWY 7L ON THE PERCH SID, APCHING 2000 FT, WE WERE TOLD TO CONTACT DEP. ASSIGNED FREQ FROM CLRNC DELIVERY 124.3 (CONCURRED WITH SID). HOWEVER, THE CTLR ON THAT FREQ TOLD US 'ASSIGNED FREQ IN ERROR, CONTACT SOCAL ON 125.2.' BY THIS TIME WE WERE PASSING 2000 FT, AND PER SID STARTED OUR R TURN TO 250 DEGS. WHEN WE ESTABLISHED COM ON 125.2, CTLR (AFTER A FEW SECONDS) ASKED IF WE WERE IN A TURN, AND IF SO WHETHER IT WAS ASSIGNED ON TKOF. HE GAVE US A VECTOR OF 180 DEGS, WE COMPLIED AND QUERIED HIM ABOUT THE DEPICTED TURN PASSING 2000 FT (HOWEVER ALSO SHOWN AS LAX 8 DME ON THE SID VERBIAGE). AFTER FURTHER REVIEW AND DISCUSSION, IT WAS EVIDENT THAT THE HEADING (070 DEGS) SHOULD HAVE BEEN MAINTAINED BY US ON DEP, WE SHOULD NOT HAVE CONSIDERED THE DELAY IN ESTABLISHING COM AS AUTH TO FLY THE LOSS OF COM PROC (WHICH IN ITSELF IS AMBIGUOUS, 2000 FT, OR 8 DME). CTLR RPTED NO CONFLICT AT THE TIME. SUPPLEMENTAL INFO FROM ACN 603951: ON THE PRE-DEP CLRNC RECEIVED FROM ACARS, THE DEP FREQ WAS 125.2. AFTER TKOF, TWR DIRECTED US TO CONTACT DEP CTL. WE SWITCHED OVER TO 125.2, CALLED, BUT DID NOT GET AN ANSWER. WE THEN FOLLOWED THE 'LOST COM PROCS' ON THE SID WHICH DIRECTED US TO TURN R TO 250 DEGS AT 2000 FT MSL. WE STARTED THE R TURN AND A CTLR CAME ON THE FREQ AND SAID CONTACT DEP CTL ON FREQ 124.3.

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.