An air carrier pilot notes a track deviation because of a confusing pre departure clearance format indicated direct to a fix when in fact a transition via intxns was correct.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	711971
Time
Date	200610
Local Time Of Day	0001 To 0600
Place
Locale Reference	intersection : mckey
State Reference	CA
Altitude	msl single value : 31000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Route In Use	departure sid : offshore5
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 210 flight time total : 8000 flight time type : 1900
ASRS Report	711971
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : published procedure non adherence : clearance non adherence : far other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Chart Or Publication FAA ATC Facility
Primary Problem	ATC Facility

Narrative:

Filed and cleared (via pre departure clearance; which is in my hand as I write this) sfo OFFSH5 sxc sna. Loaded OFFSH5 departure; no transition; direct sxc; direct sna into FMGC during preflight; and confirmed route with captain. OFFSH5 departure ends at mckey intersection; with no transition. A few mins after passing mckey; ZLA inquired if we were on an assigned heading. We replied that we were going direct to sxc; as cleared. ZLA responded that we should have been on the sxc transition; which would have taken us from mckey to daisy intersection. We were then given a 120 degree heading to join the flw R123 for the tandy arrival to sna.

Original NASA ASRS Text

Title: AN ACR PLT NOTES A TRACK DEV BECAUSE OF A CONFUSING PDC FORMAT INDICATED DIRECT TO A FIX WHEN IN FACT A TRANSITION VIA INTXNS WAS CORRECT.

Narrative: FILED AND CLRED (VIA PDC; WHICH IS IN MY HAND AS I WRITE THIS) SFO OFFSH5 SXC SNA. LOADED OFFSH5 DEP; NO TRANSITION; DIRECT SXC; DIRECT SNA INTO FMGC DURING PREFLT; AND CONFIRMED RTE WITH CAPT. OFFSH5 DEP ENDS AT MCKEY INTXN; WITH NO TRANSITION. A FEW MINS AFTER PASSING MCKEY; ZLA INQUIRED IF WE WERE ON AN ASSIGNED HDG. WE REPLIED THAT WE WERE GOING DIRECT TO SXC; AS CLRED. ZLA RESPONDED THAT WE SHOULD HAVE BEEN ON THE SXC TRANSITION; WHICH WOULD HAVE TAKEN US FROM MCKEY TO DAISY INTXN. WE WERE THEN GIVEN A 120 DEG HDG TO JOIN THE FLW R123 FOR THE TANDY ARR TO SNA.

Data retrieved from NASA's ASRS site as of January 2009 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.