MD11 crew had a TCASII RA in egtt class a airspace.

Attributes
ACN	482281
Time
Date	200007
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : egtt.artcc
State Reference	FO
Altitude	msl bound lower : 28000 msl bound upper : 28500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : egtt.artcc
Operator	common carrier : air carrier
Make Model Name	MD-11
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : atlantic
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : egtt.artcc
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : atlantic
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 80 flight time total : 8700 flight time type : 4500
ASRS Report	482281
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne critical inflight encounter : turbulence inflight encounter : weather inflight encounter other non adherence : clearance non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment : tcas other controllera other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 6000 vertical : 700
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

First officer was monitoring london control, captain and relief officer were receiving oceanic clearance from shanwick radio when crew received aural 'traffic' alert, followed immediately by 'climb, climb, climb' and attendant visual cues and warnings. PF (captain) disconnected autoplt, added power and climbed according to commands. Climb continued until 'monitor vertical speed' alert. Descent back to FL280 was commenced at 'clear of conflict' alert. Altitude gain not accurately noted, but estimated between 500-1000 ft. London controller asked if we had gotten a TCASII alert as he noted our climb. At the same time he saw other aircraft's altitude readout jump from FL270 to FL273. After questioning the other aircraft, the controller relayed that the pilot said he was in 'bumpy air' and had climbed to FL273 as a result of it. Although our aircraft was deviating around a buildup, flight conditions were VMC and smooth. London control later called and said a report would be filed 'taking action' against the other aircraft for violating our airspace. Target aircraft was not acquired visually until less than 1 mi and then only by relief officer. Visibility VMC and dusk. Flight continued to destination (ewr) without further incident.

Original NASA ASRS Text

Title: MD11 CREW HAD A TCASII RA IN EGTT CLASS A AIRSPACE.

Narrative: FO WAS MONITORING LONDON CTL, CAPT AND RELIEF OFFICER WERE RECEIVING OCEANIC CLRNC FROM SHANWICK RADIO WHEN CREW RECEIVED AURAL 'TFC' ALERT, FOLLOWED IMMEDIATELY BY 'CLB, CLB, CLB' AND ATTENDANT VISUAL CUES AND WARNINGS. PF (CAPT) DISCONNECTED AUTOPLT, ADDED PWR AND CLBED ACCORDING TO COMMANDS. CLB CONTINUED UNTIL 'MONITOR VERT SPD' ALERT. DSCNT BACK TO FL280 WAS COMMENCED AT 'CLR OF CONFLICT' ALERT. ALT GAIN NOT ACCURATELY NOTED, BUT ESTIMATED BTWN 500-1000 FT. LONDON CTLR ASKED IF WE HAD GOTTEN A TCASII ALERT AS HE NOTED OUR CLB. AT THE SAME TIME HE SAW OTHER ACFT'S ALT READOUT JUMP FROM FL270 TO FL273. AFTER QUESTIONING THE OTHER ACFT, THE CTLR RELAYED THAT THE PLT SAID HE WAS IN 'BUMPY AIR' AND HAD CLBED TO FL273 AS A RESULT OF IT. ALTHOUGH OUR ACFT WAS DEVIATING AROUND A BUILDUP, FLT CONDITIONS WERE VMC AND SMOOTH. LONDON CTL LATER CALLED AND SAID A RPT WOULD BE FILED 'TAKING ACTION' AGAINST THE OTHER ACFT FOR VIOLATING OUR AIRSPACE. TARGET ACFT WAS NOT ACQUIRED VISUALLY UNTIL LESS THAN 1 MI AND THEN ONLY BY RELIEF OFFICER. VIS VMC AND DUSK. FLT CONTINUED TO DEST (EWR) WITHOUT FURTHER INCIDENT.

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.