ACR X CLB THROUGH OCCUPIED ALT HAD LTSS FROM ACR Y. SYS ERROR.

Date: 1994-01 · Aircraft: Any Unknown or Unlisted Aircraft Manufacturer · Phase: climb

Anomalies: atc-issue-all-types|conflict-airborne-conflict|deviation-track-heading-all-types|deviation-discrepancy-procedural-published-material-policy|deviation-discrepancy-procedural-clearance

Synopsis

ACR X CLB THROUGH OCCUPIED ALT HAD LTSS FROM ACR Y. SYS ERROR.

Narrative

ACR X TOOK OFF FROM OAK RWY 29 (RWY HDG) WITH A 2000 FT RESTR. WE SWITCHED TO DEP CTL AS WE APCHED 2000 FT AND THE CTLR SAID TO DELETE THE 2000 FT RESTR AND CLB TO 10000 FT. WE WERE CLBING AT 4000 FPM. THE VISIBILITY WAS UNLIMITED AS THE TCASII CALLED OUT 'TFC' AT 12 O'CLOCK (TCASII WAS ON 5 MI RANGE). THE CTLR CALMLY SAID TO 'STOP THE CLB AT 4000 FT AND TURN L HDG TO 230 DEGS.' AS HE SAID THIS; THE TCASII WAS SCREAMING 'DSND.' THE TFC TURNED OUT TO BE AN ACR Y MD-80 COMING AT US LEVEL AT 5000 FT AND 250 KTS. WITH THE FIRST 'TFC' CALL ON TCASII; IT APPEARED THAT DEP CTL'S PLAN WAS TO CLB US OVER THE TFC. THE CLOSURE RATE (500 KTS) HOWEVER; MADE THIS IMPOSSIBLE. I CHOPPED THE PWR AND REVERSED CLB AT 4500 FT. IT WAS OBVIOUS I HAD TO TURN R TO AVOID THE JET COMING AT ME WITH ALL HIS LIGHTS ON AT A TREMENDOUS CLOSURE RATE. HE WAS ALSO TURNING W AWAY FROM ME. WE MISSED BY ABOUT 3/4 MI LATERALLY. HOWEVER; IF I HAD FOLLOWED THE CTLR'S INSTRUCTION TO TURN TO 230 DEGS WE WOULD HAVE TURNED RIGHT INTO HIM. I TALKED TO THE SUPVR AFTER LNDG. I EXPLAINED THAT MY BIGGEST CONCERN WAS THE LACK OF URGENCY IN THE CTLR'S VOICE. IT HAPPENED SO QUICKLY THAT I THINK THE CTLR WAS ALMOST DEADLY QUIET WHILE TRYING TO ASSESS HIS SIT. HIS INSTRUCTIONS WERE TOO LITTLE AND MUCH TOO LATE. IF IT HAD BEEN NIGHT OR IMC I WOULD HAVE TURNED L INTO ANOTHER JET WITH DISASTROUS RESULTS. THE TCASII WORKED WELL. THIS IS MY FIRST TIME (20 YRS) TO CONFRONT A JET HEAD-ON AT A HIGH SPD. REACTION TIMES WERE AMAZINGLY SHORT.

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