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B767 descends towards opposite direction departing B737 due to cessna above 767, not sighted. Traffic issued by sct controller.
| Attributes | |
| ACN | 460745 |
| Time | |
| Date | 200001 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : pdz.vor |
| State Reference | CA |
| Altitude | msl bound lower : 9000 msl bound upper : 10300 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | descent : approach |
| Route In Use | arrival star : kayoh |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : prado |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 18 controller time certified in position1 : 15 |
| ASRS Report | 460745 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical inflight encounter : weather other anomaly other |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued advisory flight crew : took evasive action |
| Miss Distance | horizontal : 4500 vertical : 500 |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance Aircraft ATC Human Performance |
| Primary Problem | Aircraft |
Narrative:
B767 on kayoh 4 arrival assigned 10000 ft. B737 on prado 5 departure assigned 9000 ft. Third aircraft, cessna on VFR flight, following at B767's 12 O'clock position, 7-10 mi, opposite direction, climbing out of 10300 ft. Traffic exchanged. Cessna reports B767 in sight. B767 does not see cessna, advises ATC of an RA via TCASII. Despite warning from ATC of company traffic, B767 descends into B737's path to comply with TCASII RA with cessna which is already above B767 with B767 in sight.
Original NASA ASRS Text
Title: B767 DSNDS TOWARDS OPPOSITE DIRECTION DEPARTING B737 DUE TO CESSNA ABOVE 767, NOT SIGHTED. TFC ISSUED BY SCT CTLR.
Narrative: B767 ON KAYOH 4 ARR ASSIGNED 10000 FT. B737 ON PRADO 5 DEP ASSIGNED 9000 FT. THIRD ACFT, CESSNA ON VFR FLT, FOLLOWING AT B767'S 12 O'CLOCK POS, 7-10 MI, OPPOSITE DIRECTION, CLBING OUT OF 10300 FT. TFC EXCHANGED. CESSNA RPTS B767 IN SIGHT. B767 DOES NOT SEE CESSNA, ADVISES ATC OF AN RA VIA TCASII. DESPITE WARNING FROM ATC OF COMPANY TFC, B767 DSNDS INTO B737'S PATH TO COMPLY WITH TCASII RA WITH CESSNA WHICH IS ALREADY ABOVE B767 WITH B767 IN SIGHT.
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.