Deping bur van nuys 7 SID, MD80 flight crew turn early from a socal heading change to intercept the ...

Attributes
ACN	608570
Time
Date	200402
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sct.tracon
State Reference	CA
Altitude	msl single value : 4000
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude climbout : initial
Route In Use	departure sid : van nuys 7
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	608570
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	atc equipment other atc equipment : radar other controllera other flight crewa
Resolutory Action	controller : issued advisory flight crew : returned to intended or assigned course
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor FAA Navigational Facility ATC Human Performance
Primary Problem	Navigational Facility
Situations
ATC Facility	procedure or policy : sct.tracon
Navigational Aid	PMD.VORTAC
Chart	sid : van nuys 7

Narrative:

On departure from burbank after turning 210 degrees per van nuys 7 departure procedure, socal departure told us to turn to 360 degrees and intercept the 218 degree radial to palmdale. The captain turned to 360 degrees and set in the 038 degree course. Shortly after this, he got a VOR capture and turned the aircraft per command bars to intercept course (approximately 030 degree heading). To back him up, I plugged inbound course to pmd into gfms and noticed that we were not yet approaching the course. That's when I remembered this exact thing happened to me last month, so I immediately told the captain that I thought the VOR capture notification was incorrect. He began turning back to 360 degrees. At the same time, departure must have noticed that we had turned to approximately 030 degrees and requested that we turn back to 360 degrees, which the captain was already doing. I responded to socal, told him we were going back to 360 degrees to intercept the course and also told him this false VOR capture had happened to me before. Socal responded that he'd seen it happen before also. Socal never mentioned the incident again. In my opinion, if socal wants us to fly off the departure procedure so soon, they need to give us a 360 heading only. Then once we are high enough over the mountains to get good reception from pmd, we should be cleared to intercept the course inbound. There is so much happening as one takes off on runway 15, turning, climbing, cleaning up, responding to radio calls, that we'd have to ignore the false capture, which we'd not know was false (until we had a chance to tune and identification). Hard choice to make given the information one has at the time. Callback conversation with reporter revealed the following information: reporter advised that subsequent departures from bur via the van nuys 7 prior to lange intersection, confirm a pmd radial deflection when approaching 4,000 ft.

Original NASA ASRS Text

Title: DEPING BUR VAN NUYS 7 SID, MD80 FLT CREW TURN EARLY FROM A SOCAL HDG CHANGE TO INTERCEPT THE PMD 218 DEGS R DUE TO A FALSE SIGNAL WHILE CLBING THROUGH 4,000 FT. FO AND SOCAL DEP RECOGNIZE ERRONEOUS TURN AND CALL FOR CORRECTION.

Narrative: ON DEP FROM BURBANK AFTER TURNING 210 DEGS PER VAN NUYS 7 DEP PROC, SOCAL DEP TOLD US TO TURN TO 360 DEGS AND INTERCEPT THE 218 DEG RADIAL TO PALMDALE. THE CAPT TURNED TO 360 DEGS AND SET IN THE 038 DEG COURSE. SHORTLY AFTER THIS, HE GOT A VOR CAPTURE AND TURNED THE ACFT PER COMMAND BARS TO INTERCEPT COURSE (APPROX 030 DEG HDG). TO BACK HIM UP, I PLUGGED INBOUND COURSE TO PMD INTO GFMS AND NOTICED THAT WE WERE NOT YET APCHING THE COURSE. THAT'S WHEN I REMEMBERED THIS EXACT THING HAPPENED TO ME LAST MONTH, SO I IMMEDIATELY TOLD THE CAPT THAT I THOUGHT THE VOR CAPTURE NOTIFICATION WAS INCORRECT. HE BEGAN TURNING BACK TO 360 DEGS. AT THE SAME TIME, DEP MUST HAVE NOTICED THAT WE HAD TURNED TO APPROX 030 DEGS AND REQUESTED THAT WE TURN BACK TO 360 DEGS, WHICH THE CAPT WAS ALREADY DOING. I RESPONDED TO SOCAL, TOLD HIM WE WERE GOING BACK TO 360 DEGS TO INTERCEPT THE COURSE AND ALSO TOLD HIM THIS FALSE VOR CAPTURE HAD HAPPENED TO ME BEFORE. SOCAL RESPONDED THAT HE'D SEEN IT HAPPEN BEFORE ALSO. SOCAL NEVER MENTIONED THE INCIDENT AGAIN. IN MY OPINION, IF SOCAL WANTS US TO FLY OFF THE DEP PROC SO SOON, THEY NEED TO GIVE US A 360 HDG ONLY. THEN ONCE WE ARE HIGH ENOUGH OVER THE MOUNTAINS TO GET GOOD RECEPTION FROM PMD, WE SHOULD BE CLEARED TO INTERCEPT THE COURSE INBOUND. THERE IS SO MUCH HAPPENING AS ONE TAKES OFF ON RWY 15, TURNING, CLBING, CLEANING UP, RESPONDING TO RADIO CALLS, THAT WE'D HAVE TO IGNORE THE FALSE CAPTURE, WHICH WE'D NOT KNOW WAS FALSE (UNTIL WE HAD A CHANCE TO TUNE AND ID). HARD CHOICE TO MAKE GIVEN THE INFO ONE HAS AT THE TIME. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR ADVISED THAT SUBSEQUENT DEPS FROM BUR VIA THE VAN NUYS 7 PRIOR TO LANGE INTXN, CONFIRM A PMD RADIAL DEFLECTION WHEN APCHING 4,000 FT.

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.

Deping bur van nuys 7 SID, MD80 flight crew turn early from a socal heading change to intercept the pmd 218 degrees right due to a false signal while climbing through 4,000 ft. First officer and socal departure recognize erroneous turn and call for correction.