737-300 encounters wake turbulence behind airbus heavy.

Attributes
ACN	307029
Time
Date	199506
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mex
State Reference	FO
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : mex
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Airbus Industrie Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : cfi pilot : commercial
Experience	flight time last 90 days : 190 flight time total : 11400 flight time type : 3600
ASRS Report	307029
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : atp
Events
Anomaly	inflight encounter other other anomaly
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

Conducting a visual approach to runway 23L sidestep runway 23R at mex. At about 3000 ft AGL aircraft encountered unexpected wake vortex. Aircraft rolled rapidly to right approximately 45-55 degrees. Recovery initiated in accordance with company training for advanced maneuvers. 2 mins later we were told of a heavy airbus landing on runway 23L. Had mexican ATC warned of the heavy, I could have flown above the GS. Callback conversation with reporter revealed the following: report was used for structured callback and following information was obtained. Reporter had just completed the new program initiated by his company for advanced maneuvers training. The experience with the airbus was almost identical to the simulator training he had completed. He said it was almost like a time warp where for a nanno second he felt he was back in the simulator. He feels that is why he handled the situation so well and with very little stress. He feels strongly that all air carrier's should institute such a program.

Original NASA ASRS Text

Title: 737-300 ENCOUNTERS WAKE TURB BEHIND AIRBUS HVY.

Narrative: CONDUCTING A VISUAL APCH TO RWY 23L SIDESTEP RWY 23R AT MEX. AT ABOUT 3000 FT AGL ACFT ENCOUNTERED UNEXPECTED WAKE VORTEX. ACFT ROLLED RAPIDLY TO R APPROX 45-55 DEGS. RECOVERY INITIATED IN ACCORDANCE WITH COMPANY TRAINING FOR ADVANCED MANEUVERS. 2 MINS LATER WE WERE TOLD OF A HVY AIRBUS LNDG ON RWY 23L. HAD MEXICAN ATC WARNED OF THE HVY, I COULD HAVE FLOWN ABOVE THE GS. CALLBACK CONVERSATION WITH REPORTER REVEALED THE FOLLOWING: RPT WAS USED FOR STRUCTURED CALLBACK AND FOLLOWING INFO WAS OBTAINED. RPTR HAD JUST COMPLETED THE NEW PROGRAM INITIATED BY HIS COMPANY FOR ADVANCED MANEUVERS TRAINING. THE EXPERIENCE WITH THE AIRBUS WAS ALMOST IDENTICAL TO THE SIMULATOR TRAINING HE HAD COMPLETED. HE SAID IT WAS ALMOST LIKE A TIME WARP WHERE FOR A NANNO SECOND HE FELT HE WAS BACK IN THE SIMULATOR. HE FEELS THAT IS WHY HE HANDLED THE SIT SO WELL AND WITH VERY LITTLE STRESS. HE FEELS STRONGLY THAT ALL ACR'S SHOULD INSTITUTE SUCH A PROGRAM.

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.