ACR WDB OVERSHOT TURN ON SID.
Synopsis
ACR WDB OVERSHOT TURN ON SID.
Narrative
THE SJC 4--RWY 30L--DEP IS KNOWN AMONG AIRLINE CREWS AS A TOUGH ONE; BUT I HAVE MADE IT SEVERAL TIMES AND WAS COMFORTABLE WITH IT; SO CHOSE TO FLY THE DEP AS THE F/O HAD ONLY 50 HRS IN THE ACFT AND HAD NOT BEEN OUT OF SJC RECENTLY. THE WDB HAS A MOVING MAP DISPLAY FOR LAT NAV AND WHILE AT FIRST SKEPTICAL; I WAS GAINING CONFIDENCE IN IT AND CHOSE TO FOLLOW IT ON DEP (PREVIOUSLY; I HAD GONE TO MANUAL VOR FOR THIS DEP). AFTER DEP AND WHAT SEEMED LIKE ENOUGH TIME TO FLY 2 1/2 MI FOR THE FIRST TURN; THE MAP DISPLAY STILL DID NOT CALL FOR IT. I BROUGHT THE VOR/DME INTO VIEW AND FOUND WE WERE ALREADY 5 MI OUT (THIS TURN IS TO BE COMPLETED IN 4 MI). ADDING TO THE ABOVE PROB; THIS WAS A NEW ADV WDB WITH A THIRD MORE THRUST THAN PREVIOUS MODELS AND THE COMPANY PROC HAD CALLED FOR A FULL PWR TO OFF. THIS ADDED UP TO GREATER GND SPD AND ACCELERATION TO 250 KTS FASTER THAN I HAD PLANNED. ALSO A LOW OVCST PREVENTED ANY GND TRACKING OF KNOWN REFERENCE POINTS. BUT; PROBABLY THE MOST IMPORTANT CAUSE OF THIS INCIDENT WAS A XA00 AM GET UP AFTER A FITFUL FEW HRS OF SLEEP. I'VE NOTED THAT MOST EVERYONE STARTING A PHYSICAL/MENTAL TASK GET A CHANCE TO WARM UP (BASEBALL PITCHERS; GOLFERS; ETC--EVEN A SIMULATOR SESSION STARTS WITH A FEW STEEP TURNS). I BELIEVE THE BOTTOM LINE WAS THAT I WASN'T MENTALLY READY TO GO FLYING. WE SPEND MILLIONS ON HARDWARE FOR SAFETY; BUT THE CREW SCHEDULERS ARE STILL JUST FILLING THE SQUARES REGARDLESS OF ONE'S BODY CLOCK! NOTE: I'VE NOT YET FLOWN THE DEP AGAIN TO WATCH THE MAP DISPLAY; BUT FROM REVIEWING IT IN THE PLAN MODE; IT APPEARS TO BE PROGRAMMED IN ERROR. SUPPLEMENTAL INFO FROM ACN 90649: MY RECOMMENDATIONS TO MY FELLOW PLTS FLYING NEW; HIGH PERFORMANCE ACFT: CONDUCT A DETAILED PRE-DEP BRIEFING WITH THE CAPT WHEN FLYING AN UNFAMILIAR PROC. DISCUSS HOW THE PROC IS TO BE FLOWN; AND WHAT NAV INSTRUMENTS WILL BE USED. DO NOT BE RUSHED BEFORE TKOF!!! TAKE A DELAY AND TALK IT OUT. IF IN DOUBT; DON'T BE AFRAID TO TURN OFF THE FMS AND GO BACK TO BASIC FLYING. USE THE AUTOMATION AS AN EFFECTIVE TOOL. WHEN THE TOOL DOES NOT FIT THE JOB; CHANGE TOOLS. KNOW THE PROFILE YOU MUST FLY FOR THE DEP. BE PREPARED TO KEEP UP WITH THE PERFORMANCE OF YOUR ACFT.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.