Advanced cockpit air carrier medium large transport experiences track deviation on the flipr 3 SID f...

Attributes
ACN	153729
Time
Date	199008
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : sli airport : lax
State Reference	CA
Altitude	msl bound lower : 28000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zla
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 other departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 195 flight time total : 6500 flight time type : 275
ASRS Report	153729
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 20000 flight time type : 2500
ASRS Report	154363
Events
Anomaly	non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were flying the flipr 3 SID, daggett transition on departure from lax. For unknown reason, the FMC did not program or fly the transition part of the SID between seal beach VORTAC and the daggett VORTAC, instead we were flying direct from seal beach VORTAC to daggett VORTAC (this stuff has happened before). Center told us were off course about 10 mi. We found the problem. I disconnected the autoplt, went back to raw data and made the necessary course correction. There did not appear to be any urgency in the controller so I believe there as no conflict with traffic. Problem: I put too much faith and reliance on gee-wiz (FMC, etc) INS and not backing up with raw data! Supplemental information from acn 154363: after several changes on vectors and direct clrncs the FMC was reprogrammed several times and in the process a dogleg in the departure was inadvertently dropped and showed a direct route. Talking to ZLA on climb out they advised we were east of course. I believe the late hour (2 am local body time) and changes in departure vectors contributed error.

Original NASA ASRS Text

Title: ADVANCED COCKPIT ACR MLG EXPERIENCES TRACK DEVIATION ON THE FLIPR 3 SID FROM LAX.

Narrative: WE WERE FLYING THE FLIPR 3 SID, DAGGETT TRANSITION ON DEP FROM LAX. FOR UNKNOWN REASON, THE FMC DID NOT PROGRAM OR FLY THE TRANSITION PART OF THE SID BTWN SEAL BEACH VORTAC AND THE DAGGETT VORTAC, INSTEAD WE WERE FLYING DIRECT FROM SEAL BEACH VORTAC TO DAGGETT VORTAC (THIS STUFF HAS HAPPENED BEFORE). CENTER TOLD US WERE OFF COURSE ABOUT 10 MI. WE FOUND THE PROB. I DISCONNECTED THE AUTOPLT, WENT BACK TO RAW DATA AND MADE THE NECESSARY COURSE CORRECTION. THERE DID NOT APPEAR TO BE ANY URGENCY IN THE CTLR SO I BELIEVE THERE AS NO CONFLICT WITH TFC. PROB: I PUT TOO MUCH FAITH AND RELIANCE ON GEE-WIZ (FMC, ETC) INS AND NOT BACKING UP WITH RAW DATA! SUPPLEMENTAL INFO FROM ACN 154363: AFTER SEVERAL CHANGES ON VECTORS AND DIRECT CLRNCS THE FMC WAS REPROGRAMMED SEVERAL TIMES AND IN THE PROCESS A DOGLEG IN THE DEP WAS INADVERTENTLY DROPPED AND SHOWED A DIRECT RTE. TALKING TO ZLA ON CLBOUT THEY ADVISED WE WERE E OF COURSE. I BELIEVE THE LATE HR (2 AM LCL BODY TIME) AND CHANGES IN DEP VECTORS CONTRIBUTED ERROR.

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.

Advanced cockpit air carrier medium large transport experiences track deviation on the flipr 3 SID from lax.