Near midair collision between opposite direction, same altitude traffic.

Attributes
ACN	285581
Time
Date	199410
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : fra
State Reference	FO
Altitude	msl bound lower : 3600 msl bound upper : 4000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	enroute : on vectors enroute airway : fra
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 25000 flight time type : 500
ASRS Report	285581
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 150 flight time total : 25000 flight time type : 4000
ASRS Report	285508
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac non adherence : far non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Frankfurt radar cleared flight to maintain 4000 ft. Approximately 20 NM east of fra, a high speed was authority/authorized. At the same time (within 3 mins) the TCASII RA commanded a descent. We descended approximately 400 ft and visually sighted a small high wing aircraft cross our 12 O'clock position overhead. TCASII showed '0' ft separation prior to our descent from 4000 ft.

Original NASA ASRS Text

Title: NMAC BTWN OPPOSITE DIRECTION, SAME ALT TFC.

Narrative: FRANKFURT RADAR CLRED FLT TO MAINTAIN 4000 FT. APPROX 20 NM E OF FRA, A HIGH SPD WAS AUTH. AT THE SAME TIME (WITHIN 3 MINS) THE TCASII RA COMMANDED A DSCNT. WE DSNDED APPROX 400 FT AND VISUALLY SIGHTED A SMALL HIGH WING ACFT CROSS OUR 12 O'CLOCK POS OVERHEAD. TCASII SHOWED '0' FT SEPARATION PRIOR TO OUR DSCNT FROM 4000 FT.

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.