A foreign oceanic controller climbed 1 air carrier widebody transport into the altitude of another air carrier widebody transport with less than standard separation.

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Attributes
ACN	229744
Time
Date	199212
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : flo
State Reference	FO
Altitude	msl bound lower : 37000 msl bound upper : 39000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : atlantic enroute : other oceanic enroute airway : lppo
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : other oceanic enroute : atlantic
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 11000 flight time type : 450
ASRS Report	229744
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	controller : issued new clearance
Consequence	Other
Miss Distance	horizontal : 40000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

We were en route from lfpo to kmia. After passing 40N 30W, we noticed an aircraft ahead at FL350 at about 5 mi on TCASII. We noticed the aircraft start a climb from 350 and level at FL370. We called santa maria radio and inquired to this. They selcaled the other aircraft asked his 38N 40W estimate, then called us back and climbed us to FL390. Flight continued to mia. Supplemental information from acn 229743: during a transatlantic crossing from lhr to mia, santa maria radio cleared us to climb from FL350 to FL370. This resulted in us being ahead of another aircraft on the same route and same altitude with inadequate separation.

Original NASA ASRS Text

Title: A FOREIGN OCEANIC CTLR CLBED 1 ACR WDB INTO THE ALT OF ANOTHER ACR WDB WITH LTSS.

Narrative: WE WERE ENRTE FROM LFPO TO KMIA. AFTER PASSING 40N 30W, WE NOTICED AN ACFT AHEAD AT FL350 AT ABOUT 5 MI ON TCASII. WE NOTICED THE ACFT START A CLB FROM 350 AND LEVEL AT FL370. WE CALLED SANTA MARIA RADIO AND INQUIRED TO THIS. THEY SELCALED THE OTHER ACFT ASKED HIS 38N 40W ESTIMATE, THEN CALLED US BACK AND CLBED US TO FL390. FLT CONTINUED TO MIA. SUPPLEMENTAL INFO FROM ACN 229743: DURING A TRANSATLANTIC XING FROM LHR TO MIA, SANTA MARIA RADIO CLRED US TO CLB FROM FL350 TO FL370. THIS RESULTED IN US BEING AHEAD OF ANOTHER ACFT ON THE SAME RTE AND SAME ALT WITH INADEQUATE SEPARATION.

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.