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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier medium large transport climbed in response to a TCASII command caused by a high performance climb of an fgt.
| Attributes | |
| ACN | 236176 |
| Time | |
| Date | 199303 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : hpw |
| State Reference | VA |
| Altitude | msl bound lower : 35000 msl bound upper : 35700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Fighter |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 81 flight time total : 11000 flight time type : 3300 |
| ASRS Report | 236176 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 22000 vertical : 700 |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Level cruise sbound on J-79 at FL350, 84 DME north hpw VOR -- TCASII indicated a TA and almost immediately, an RA, then a 'climb' instruction. Intruder appeared on TCASII screen at 2 O'clock position and at a 0 altitude differential. Autoplt was disengaged and a climb established to approximately 35700 by me. The first officer informed ATC of our maneuver and of the traffic TCASII RA warning. Controller appeared as surprised as we. When asked the specifics of that aircraft, the controller indicated he would have to check on it, but thought it was probably one 'launched' out of patuxent. He later (about 2 mins) said it was an fgt out of patuxent. The intruder was very fast and appeared to make a left turn behind us. First officer saw the aircraft, probably only because his contrail was very evident.
Original NASA ASRS Text
Title: AN ACR MLG CLBED IN RESPONSE TO A TCASII COMMAND CAUSED BY A HIGH PERFORMANCE CLB OF AN FGT.
Narrative: LEVEL CRUISE SBOUND ON J-79 AT FL350, 84 DME N HPW VOR -- TCASII INDICATED A TA AND ALMOST IMMEDIATELY, AN RA, THEN A 'CLB' INSTRUCTION. INTRUDER APPEARED ON TCASII SCREEN AT 2 O'CLOCK POS AND AT A 0 ALT DIFFERENTIAL. AUTOPLT WAS DISENGAGED AND A CLB ESTABLISHED TO APPROX 35700 BY ME. THE FO INFORMED ATC OF OUR MANEUVER AND OF THE TFC TCASII RA WARNING. CTLR APPEARED AS SURPRISED AS WE. WHEN ASKED THE SPECIFICS OF THAT ACFT, THE CTLR INDICATED HE WOULD HAVE TO CHK ON IT, BUT THOUGHT IT WAS PROBABLY ONE 'LAUNCHED' OUT OF PATUXENT. HE LATER (ABOUT 2 MINS) SAID IT WAS AN FGT OUT OF PATUXENT. THE INTRUDER WAS VERY FAST AND APPEARED TO MAKE A L TURN BEHIND US. FO SAW THE ACFT, PROBABLY ONLY BECAUSE HIS CONTRAIL WAS VERY EVIDENT.
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.