B757 CLBING TO FL350 CLRED DIRECT LETON RECEIVED A TCASII RA; CLBING THROUGH FL325; ON A B727 AT FL330. THE B727 ALSO RECEIVED A TCASII RA ON THE B757 AND BOTH ACFT FOLLOWED THEIR TCASII RA'S. CTLR WAS EXPECTING MORE OF A TURN FROM THE B757 WHEN HE CLRED HIM DIRECT TO LETON.

1996-08 · NASA ASRS report 344872

Date: 1996-08 · Aircraft: B757 Undifferentiated or Other Model · Phase: climb

Anomalies: atc-issue-all-types|conflict-airborne-conflict|deviation-track-heading-all-types|other-unspecified

Synopsis

B757 CLBING TO FL350 CLRED DIRECT LETON RECEIVED A TCASII RA; CLBING THROUGH FL325; ON A B727 AT FL330. THE B727 ALSO RECEIVED A TCASII RA ON THE B757 AND BOTH ACFT FOLLOWED THEIR TCASII RA'S. CTLR WAS EXPECTING MORE OF A TURN FROM THE B757 WHEN HE CLRED HIM DIRECT TO LETON.

Narrative

ON THE JAWSS DEP AT SJU; SLIGHTLY PRIOR TO REACHING UTAHS WAS CLRED DIRECT LETON. PREVIOUSLY CLRED TO FL350. SELECTED DIRECT LETON ON FMS; VERIFIED AND EXECUTED. AT ABOUT FL320 SAW TCASII TARGET 20 NM 12 O'CLOCK; ABOUT PLUS 900 FT. CLOSER RATE VERY HIGH. AT FL325 I LEVEL ACFT; COINCIDENT WITH TA. IMMEDIATELY AFTER RA RECEIVED: CLB. COMPLIED. IN EXCESS OF 2500 FPM COMMANDED. PULLED UP SMARTLY. SAW ACFT AT ABOUT 10 O'CLOCK; DIVING AND TURNING R. ESTIMATE CLOSURE AT 3/4 MI. NO INJURIES MY ACFT. QUERIED CTR. HE VAGUELY STATED WE WERE CLRED DIRECT TO LETON BUT STILL ON AIRWAY. HE SEEMED TO ANTICIPATE WE WOULD MAKE R TURN; BUT AIRWAY ALMOST STRAIGHT. IN FACT G431 BOWS SLIGHTLY BTWN UTAHS AND LETON TO NE. DIRECT WAS A VERY SLIGHT L TURN. AS FAR AS I CAN TELL; THIS WAS CLRLY A CTR MISTAKE. TCASII SAVED THE DAY. SUPPLEMENTAL INFO FROM ACN 344878: WE WERE IN CRUISE AT FL330. WE RECEIVED A TA ALERT FOLLOWED BY AN RA ALERT; TO DSND XING DSND. THE OTHER ACFT WAS CLBING THROUGH OUR ALT. WE RESPONDED TO THE RA BY DSNDING. WE WERE THEN AT FL320. ATC GAVE US A DSCNT CLRNC.

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

Loading the flight search…

Frequently asked questions

How do I search flights by aircraft type on FlightFinder?

Pick an aircraft model — Boeing 737, Airbus A320, A380, Boeing 787 Dreamliner and more — enter your origin airport, and FlightFinder shows every route that plane flies from there with live fares.

Which aircraft types can I filter by?

We support Boeing 737/747/757/767/777/787, the full Airbus A220/A319/A320/A321/A330/A340/A350/A380 family, Embraer E170/E175/E190/E195, Bombardier CRJ and Dash 8, and the ATR 42/72 turboprops.

Is FlightFinder free to use?

Search and schedules are free. Pro ($4.99/month, $39/year, or $99 one-time lifetime) unlocks the enriched flight card — on-time stats, CO₂ per passenger, amenities, live gate & weather — plus My Trips with push alerts.

Where does the route data come from?

Live schedules come from Amadeus, AeroDataBox and Travelpayouts. Observed routes (which aircraft actually flew a given city pair) are crowdsourced from adsb.lol ADS-B data under the Open Database License.