2008-06 · NASA ASRS report 788550
A11 CTLR DESCRIBED NEAR SEPARATION LOSS WHEN RELIEVED CTLR TURNED SLOW CLIMBING ACFT TOWARD TERRAIN; CORRECTIVE ACTION TAKEN IN TIME.
I ASSUMED N RADAR POS FROM THE PRECEDING CTLR; WHO HAD ONLY 1 ACFT ON FREQ. THIS WAS ACFT X; A HVY B747-200. THESE FREIGHTERS ARE NOTORIOUSLY SLOW CLIMBERS -- ESPECIALLY DURING THE WARMER DAYS OF SUMMER. ACFT X WAS JUST OUT OF 3500 FT WHEN THE CTLR TURNED HIM HDG 120 DEGS TOWARDS A 5500 FT MVA WHICH IS ONLY 2.5 MI WIDE THEN IT BECOMES AN 8000 FT MVA. MY VERY FIRST XMISSION WAS TO TURN ACFT X L HDG 360 DEGS AND THEN A SERIES OF L TURNS AROUND TO 080 DEGS TO 1) MAKE THE MVA REQUIREMENTS; 2) MEET THE REQUIREMENT WITH ZAN TO EXIT THE ELLAM GATE HDG 080 DEGS. THE CTLR I RELIEVED MAY OR MAY NOT HAVE HAD A PLAN TO PREVENT ACFT X FROM IMPACTING THE CHUGACH MOUNTAINS. THOUGH VISIBILITY WAS GOOD AND HE WOULD LIKELY HAVE SAID SOMETHING; THIS WAS AN EMBARRASSING MOVE ON THE CTLR'S PART. IN ADDITION TO TURNING THIS HVY TOWARDS THE RAPIDLY RISING TERRAIN E OF ANC ARPT; THE PRECEDING CTLR DID NOT POINT THIS HVY OUT TO THE UNDERLYING LOW SECTOR WHO WAS WORKING A VFR ACFT Y AT 4100 FT (IN OUR AIRSPACE WITHOUT COORD). AS I TURNED ACFT X FOR HIS CLB; I HAD TO INITIATE A POINTOUT WITH THE N LOW SECTOR TOO.
More incidents for this aircraft family
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
Loading the flight search…
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.
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.
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.
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.