What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(.4)Beech 99 (B99) departed on VFR flight (flt) & began climb to 10,500', heading 175 deg. At boundary of class b airspace, ATC controller (TRACON) terminated radar service as B99 was at 7,000'; 40 sec later, pilots (plts) of Boeing 737 (B737) contacted TRACON, on cresso 3 arrival (star), & were cleared to descend to 10,000' on converging vector of 020 deg; 50 sec later, TRACON advised B737 of traffic (B99), 3 mi ahead, opposite direction & 1,700' lower. TRACON did not mention traffic was climbing, nor issue safety alert; 18 sec later, TRACON told B737 plts they could 'climb as you wish.' 1st officer (fo, plt flying TCAS equipped B737) responded to a resolution advisory by using autopilot & neglected to press 'level change,' which delayed avoidance maneuver. B737 plts saw B99 at close range; fo maneuvered abruptly to avert collision. B737 flight attendant was injured during maneuver. B99 plt saw B737 behind window post, too late for evasive action. Aircraft passed with estimated 200' vertical & no lateral separation (sepn). TCAS event analysis concluded that if B737 pilots had responded to TCAS advisories, within system design parameters, there would have been 700' vertical sepn w ithout abrupt maneuvering. Star was in heavily traveled area, often used by plts of small VFR aircraft.
As the FAA filed it
(.4)BEECH 99 (B99) DEPARTED ON VFR FLIGHT (FLT) & BEGAN CLIMB TO 10,500', HEADING 175 DEG. AT BOUNDARY OF CLASS B AIRSPACE, ATC CONTROLLER (TRACON) TERMINATED RADAR SERVICE AS B99 WAS AT 7,000'; 40 SEC LATER, PILOTS (PLTS) OF BOEING 737 (B737) CONTACTED TRACON, ON CRESSO 3 ARRIVAL (STAR), & WERE CLEARED TO DESCEND TO 10,000' ON CONVERGING VECTOR OF 020 DEG; 50 SEC LATER, TRACON ADVISED B737 OF TRAFFIC (B99), 3 MI AHEAD, OPPOSITE DIRECTION & 1,700' LOWER. TRACON DID NOT MENTION TRAFFIC WAS CLIMBING, NOR ISSUE SAFETY ALERT; 18 SEC LATER, TRACON TOLD B737 PLTS THEY COULD 'CLIMB AS YOU WISH.' 1ST OFFICER (FO, PLT FLYING TCAS EQUIPPED B737) RESPONDED TO A RESOLUTION ADVISORY BY USING AUTOPILOT & NEGLECTED TO PRESS 'LEVEL CHANGE,' WHICH DELAYED AVOIDANCE MANEUVER. B737 PLTS SAW B99 AT CLOSE RANGE; FO MANEUVERED ABRUPTLY TO AVERT COLLISION. B737 FLIGHT ATTENDANT WAS INJURED DURING MANEUVER. B99 PLT SAW B737 BEHIND WINDOW POST, TOO LATE FOR EVASIVE ACTION. AIRCRAFT PASSED WITH ESTIMATED 200' VERTICAL & NO LATERAL SEPARATION (SEPN). TCAS EVENT ANALYSIS CONCLUDED THAT IF B737 PILOTS HAD RESPONDED TO TCAS ADVISORIES, WITHIN SYSTEM DESIGN PARAMETERS, THERE WOULD HAVE BEEN 700' VERTICAL SEPN W ITHOUT ABRUPT MANEUVERING. STAR WAS IN HEAVILY TRAVELED AREA, OFTEN USED BY PLTS OF SMALL VFR AIRCRAFT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.
Other reports on N313AW · 1
Matched to the same aircraft by N-number and date.