 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of widebody transport at FL280 received TCASII TA then TA to climb. Flight crew climbed aircraft 400 ft before receiving all clear.
| Attributes | |
| ACN | 189864 |
| Time | |
| Date | 199109 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pke |
| State Reference | CA |
| Altitude | msl bound lower : 28000 msl bound upper : 28400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 190 flight time total : 12200 flight time type : 3500 |
| ASRS Report | 189864 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot conflict : airborne less severe non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were level at FL280 on a vector of 090 degree to climb to a higher altitude. About 1 min earlier we saw an medium large transport passing from our 9 O'clock position to our 2 O'clock position beneath us going on a heading of approximately 110. He appeared to be at FL270. About 1 min later we got a 'traffic, traffic' warning on our TCASII. We both looked at our TCASII to see where the traffic was when we got the 'climb, climb, climb' advisory from the TCASII. The red square was superimposed on our position. We pulled up immediately and at about 300-400 ft above our altitude, we got the 'monitor vertical speed' on the TCASII. Moments later the 'clear of conflict' sounded. I called lax ATC to advise them of what we've done and he replied that the aircraft below us 'slid through his altitude a little bit, 300 ft'. ATC cleared us to FL290 and the flight continued uneventfully.
Original NASA ASRS Text
Title: FLC OF WDB AT FL280 RECEIVED TCASII TA THEN TA TO CLB. FLC CLBED ACFT 400 FT BEFORE RECEIVING ALL CLR.
Narrative: WE WERE LEVEL AT FL280 ON A VECTOR OF 090 DEG TO CLB TO A HIGHER ALT. ABOUT 1 MIN EARLIER WE SAW AN MLG PASSING FROM OUR 9 O'CLOCK POS TO OUR 2 O'CLOCK POS BENEATH US GOING ON A HDG OF APPROX 110. HE APPEARED TO BE AT FL270. ABOUT 1 MIN LATER WE GOT A 'TFC, TFC' WARNING ON OUR TCASII. WE BOTH LOOKED AT OUR TCASII TO SEE WHERE THE TFC WAS WHEN WE GOT THE 'CLB, CLB, CLB' ADVISORY FROM THE TCASII. THE RED SQUARE WAS SUPERIMPOSED ON OUR POS. WE PULLED UP IMMEDIATELY AND AT ABOUT 300-400 FT ABOVE OUR ALT, WE GOT THE 'MONITOR VERT SPD' ON THE TCASII. MOMENTS LATER THE 'CLR OF CONFLICT' SOUNDED. I CALLED LAX ATC TO ADVISE THEM OF WHAT WE'VE DONE AND HE REPLIED THAT THE ACFT BELOW US 'SLID THROUGH HIS ALT A LITTLE BIT, 300 FT'. ATC CLRED US TO FL290 AND THE FLT CONTINUED UNEVENTFULLY.
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.