C130 CREW OFF PJRF TO SMF MISREAD CHART AND PROCEEDED ON INCORRECT RTE.

Date: 2000-11 · Aircraft: Hercules (C-130)

Anomalies: deviation-track-heading-all-types|deviation-discrepancy-procedural-clearance

Synopsis

C130 CREW OFF PJRF TO SMF MISREAD CHART AND PROCEEDED ON INCORRECT RTE.

Narrative

ON NOV/XA/00; I WAS THE OPS SUPVR IN CHARGE AT HNL CERAP. AT ABOUT XA21; MY R3 RADAR CTLR ALERTED ME THAT MIL X (A LOCKHEED C130 HERCULES) WAS OFF COURSE AND DIVERGING FROM THE AIRWAY. THE FILED AND CLRED RTE WAS VIA CLUTS R465 CLUKK FOR THE OCEANIC PORTION OF THE FLT. THE ACFT HAD PASSED CLUTS AT ABOUT XA16; AT WHICH POINT RADAR SVC HAD BEEN TERMINATED; AND COMS XFERRED TO COMMERCIAL RADIO FOR THE OCEANIC PHASE OF THE FLT; IN ACCORDANCE WITH OUR SOP. THE R3 CTLR HAD ALERTLY OBSERVED THE XPONDER TARGET AND LIMITED DATA BLOCK DEVIATING TO THE R OF THE CLRED RTE. SINCE WE NO LONGER HAD VHF COMS WITH THE ACFT; THE R3 CTLR CONTACTED ZOA TO ASCERTAIN IF THEY WERE AWARE OF THE SIT. THE ZOA CTLR SAID THEY WERE IN COMS VIA COMMERCIAL RADIO; AND MIL X HAD RPTED CLUTS; DUFFE NEXT (THE CORRECT RPT WOULD HAVE BEEN CLUTS; CLURE NEXT -- ALL FIXES ON R465 START WITH LETTER 'C'). ZOA WAS AWARE OF THE ACFT'S POS; AND WAS WORKING OUT A REVISED ROUTING. SOLUTIONS: SHORT TERM -- EASY FIX. ON THE VERY SAME FLIP CHART; THE FIX POS FOR THE VERY CROWDED NOPAC RTES ARE BROKEN OUT AND PUT IN A SEPARATE TABLE. I SUGGEST DOING THE SAME FOR THE CENPAC. LONG TERM FIX -- CREATE A NEW CHART IN THE SERIES; WITH THE CENPAC ALONE IN MUCH LARGER SCALE ON ONE SIDE AND THE NOPAC ALONE IN MUCH LARGER SCALE ON THE OTHER. NAV ERRORS IN THE NON RADAR OCEANIC ENVIRONMENT ARE SERIOUS BUSINESS. CONFUSING CHARTS DO NOT HELP. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR DID NOT ADD ANY ADDITIONAL INFO AND DID NOT KNOW IF THE MIL HAS CHANGED TO USING A DIFFERENT CHART. IT WAS POINTED OUT THAT THE NOAA CHART SEEMS TO DISPLAY THE FIXES MORE CLRLY AND DOES NOT HAVE THE CROWDING THAT APPEARS ON THE UNITED STATES GOV CHART.

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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.