A WX FRONT WITH WINDSHEARS; AND MICROBURSTS HAD JUST PASSED OVER THE ARPT FROM SW TO NE. AFTER TKOF THE FLT WAS ASSIGNED VECTORS TOWARD THE WX FOR NOISE ABATEMENT. THE CREW BELIEVES THEY SHOULD BE TOLD THE REASON FOR VECTORS BE IT FOR TFC OR NOISE ABATEMENT.

Date: 1996-04 · Aircraft: B727 Undifferentiated or Other Model · Phase: climb

Anomalies: inflight-event-encounter-weather-turbulence|other-unspecified

Synopsis

A WX FRONT WITH WINDSHEARS; AND MICROBURSTS HAD JUST PASSED OVER THE ARPT FROM SW TO NE. AFTER TKOF THE FLT WAS ASSIGNED VECTORS TOWARD THE WX FOR NOISE ABATEMENT. THE CREW BELIEVES THEY SHOULD BE TOLD THE REASON FOR VECTORS BE IT FOR TFC OR NOISE ABATEMENT.

Narrative

A WX FRONT WITH WINDSHEAR; MICROBURSTS; VIRGA; BLOWING DUST; CUMULOMAMA AND A TEMP/DEWPOINT OF 74 DEGS/24 DEGS HAD JUST PASSED OVER THE ARPT FROM SW TO NE. DEST WAS SAN JOSE. TKOF RWY 17R. WE WERE GIVEN A NBOUND SID FOR NOISE ABATEMENT (YELLOWSTONE -- LARAMIE). INITIAL L TURN TO 030 DEGS FOLLOWED BY A R TURN TO 065 DEGS BY THE TWR AND HDOF TO DEP; ON 127.05. BY THIS TIME WE WERE LEVEL AT 10000 FT AND WE RECEIVED A L TURN TO 010 DEGS TOWARDS WX. WX RADAR SHOWED GREEN ONLY BUT AREAS OF POSSIBLE ATTENUATION AND IT LOOKED NASTY AHEAD. WE TOLD THE CTLR WE COULDN'T STAY ON THIS HDG VERY LONG FOR WX. (WE TRIED TO GIVE THE CTLR HIS CHOICE OF SOLUTIONS TO THE PROB; TELLING HIM WE NEED A HDG W OR S.) WE INSTEAD RECEIVED A CLB TO 12000 FT INTO THE WX BUT NO TURN. WE TOLD HIM TWICE THAT WE NEEDED A TURN 'NOW.' THE CREW DISCUSSED A 180 DEG TURN; BUT CHOSE TO CONTINUE BASED ON THE RADAR DISPLAY'S LACK OF RED ECHOES. A NEW CTLR'S VOICE CAME ON AND GAVE US A VECTOR NW (310 DEGS TO JOIN THE SID). IT WAS THE CREW'S STRONG BELIEF THAT THIS CTLR DELIBERATELY IGNORED US DUE TO CONFLICT WITH NOSE ABATEMENT PROCS. OTHER CONTRIBUTING FACTORS MAY HAVE BEEN SHIFT CHANGE OR CTLR OVERLOAD/SATURATION. IF NOISE ABATEMENT WAS THE CAUSE; THE CREW SHOULD BE ADVISED SO THAT THEY CAN ABANDON NOISE ABATEMENT PROCS WHEN SAFETY OF FLT IS AT STAKE.

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