37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 394000 |
Time | |
Date | 199802 |
Day | Tue |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | atc facility : czm |
State Reference | FO |
Altitude | msl bound lower : 31000 msl bound upper : 33200 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : muha |
Operator | common carrier : air carrier |
Make Model Name | B727 Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Flight Phase | cruise other |
Route In Use | enroute : other oceanic enroute airway : muha |
Flight Plan | IFR |
Aircraft 2 | |
Operator | common carrier : air taxi |
Make Model Name | Learjet 25 |
Operating Under FAR Part | Part 135 |
Flight Phase | climbout : intermediate altitude |
Route In Use | enroute : other oceanic |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
ASRS Report | 394000 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : instrument |
Events | |
Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance |
Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
Resolutory Action | flight crew : took evasive action |
Consequence | Other |
Miss Distance | horizontal : 0 vertical : 1000 |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | other |
Situations | |
ATC Facility | procedure or policy : unspecified |
Narrative:
At FL310 under radar contact, with havana center, TCASII issued a TA followed immediately by an RA to 'climb, climb.' first officer accomplished the emergency procedure for a corrective RA and climbed to FL332. A lear jet passed approximately 1000 ft directly below us in the opposite direction. Call sign was xx and havana had cleared him to FL410. Havana claimed the lear had reported us in sight but probably had seen yy flight, a B727, 20 mi in front, also at FL310. I believe that without evasive action on our part that a midair collision was probable. Supplemental information from acn 394020: I was cleared to maintain FL290, during climb to FL410. I was told I had traffic at 30 mi at FL310, a B737. I then called traffic in sight overhead at FL310, a B727. After passing B727 traffic, I was cleared to FL410. At FL307 I heard an air carrier report a traffic conflict at their altitude and they were climbing for a resolution to the conflict. I leveled at FL307 and watched the traffic go by at FL330, then resumed my climb to FL410.
Original NASA ASRS Text
Title: B727 IN CRUISE RECEIVED TCASII RA FROM LEAR 25 CLBING AND RPTR CAPT TOOK EVASIVE ACTION. LEAR CAPT HAD IDENTED ANOTHER ACFT AS RPTED TFC FOR VISUAL CLB AND SEPARATION.
Narrative: AT FL310 UNDER RADAR CONTACT, WITH HAVANA CTR, TCASII ISSUED A TA FOLLOWED IMMEDIATELY BY AN RA TO 'CLB, CLB.' FO ACCOMPLISHED THE EMER PROC FOR A CORRECTIVE RA AND CLBED TO FL332. A LEAR JET PASSED APPROX 1000 FT DIRECTLY BELOW US IN THE OPPOSITE DIRECTION. CALL SIGN WAS XX AND HAVANA HAD CLRED HIM TO FL410. HAVANA CLAIMED THE LEAR HAD RPTED US IN SIGHT BUT PROBABLY HAD SEEN YY FLT, A B727, 20 MI IN FRONT, ALSO AT FL310. I BELIEVE THAT WITHOUT EVASIVE ACTION ON OUR PART THAT A MIDAIR COLLISION WAS PROBABLE. SUPPLEMENTAL INFO FROM ACN 394020: I WAS CLRED TO MAINTAIN FL290, DURING CLB TO FL410. I WAS TOLD I HAD TFC AT 30 MI AT FL310, A B737. I THEN CALLED TFC IN SIGHT OVERHEAD AT FL310, A B727. AFTER PASSING B727 TFC, I WAS CLRED TO FL410. AT FL307 I HEARD AN ACR RPT A TFC CONFLICT AT THEIR ALT AND THEY WERE CLBING FOR A RESOLUTION TO THE CONFLICT. I LEVELED AT FL307 AND WATCHED THE TFC GO BY AT FL330, THEN RESUMED MY CLB TO FL410.
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.