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A descending B747-200 is nearly broadsided by a foreign air carrier crossing left to right in cruise at FL290 near lecm, first officer.
| Attributes | |
| ACN | 450824 |
| Time | |
| Date | 199909 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lecm.artcc |
| State Reference | FO |
| Altitude | msl single value : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : lecm.artcc tower : mdw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B747-100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : vacating altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : lecm.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 120 flight time total : 13900 flight time type : 3200 |
| ASRS Report | 450824 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | ATC Human Performance Aircraft Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
We were given a descent from FL350 to FL240. While descending through FL320, controller requested of me to expedite through FL290 due to sbound traffic. While passing through FL290, I noticed a shadow pass through my left side window. (Sky was clear.) air carrier Y called, 'levy, frequency 133.95' and reported a B747 passing 'immediately' under his aircraft. Madrid failed to advise of conflicting traffic, location and altitude. Air carrier Y failed to call traffic on TCASII and neglected to comply with TA/RA advisories. Madrid failed to discuss the situation after the event. My aircraft was equipment with TCASII when initially purchased but unfortunately management and the maintenance department elected to remove it due to economic reasons.
Original NASA ASRS Text
Title: A DSNDING B747-200 IS NEARLY BROADSIDED BY A FOREIGN ACR XING L TO R IN CRUISE AT FL290 NEAR LECM, FO.
Narrative: WE WERE GIVEN A DSCNT FROM FL350 TO FL240. WHILE DSNDING THROUGH FL320, CTLR REQUESTED OF ME TO EXPEDITE THROUGH FL290 DUE TO SBOUND TFC. WHILE PASSING THROUGH FL290, I NOTICED A SHADOW PASS THROUGH MY L SIDE WINDOW. (SKY WAS CLR.) ACR Y CALLED, 'LEVY, FREQ 133.95' AND RPTED A B747 PASSING 'IMMEDIATELY' UNDER HIS ACFT. MADRID FAILED TO ADVISE OF CONFLICTING TFC, LOCATION AND ALT. ACR Y FAILED TO CALL TFC ON TCASII AND NEGLECTED TO COMPLY WITH TA/RA ADVISORIES. MADRID FAILED TO DISCUSS THE SIT AFTER THE EVENT. MY ACFT WAS EQUIP WITH TCASII WHEN INITIALLY PURCHASED BUT UNFORTUNATELY MGMNT AND THE MAINT DEPT ELECTED TO REMOVE IT DUE TO ECONOMIC REASONS.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.