Air carrier departing south is hit by jet blast from a B757 apparently departing west on a cross run...

Attributes
ACN	406495
Time
Date	199806
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msy
State Reference	LA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : takeoff
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 16000
ASRS Report	406495
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : ground less severe inflight encounter other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control none taken : unable
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other
Situations
Airport	other physical facility

Narrative:

Msy tower cleared us for takeoff runway 19 (air carrier #1). At rotation we were hit by jet blast from an air carrier #2 B757 in position on runway 28. Extreme lateral and longitudinal displacement, 20-30 degrees roll and 50 ft lateral displacement from runway centerline. Extremely hazardous situation. Msy tower should never clear an aircraft for takeoff on runway 28 with an aircraft rolling on runway 19. Callback conversation with reporter revealed the following information: pilot on flight departing runway 19 at msy called and stated that on arrival at destination he called the tower supervisor at msy and complained about getting severe jet blast from the traffic departing runway 28. He said he was about 10-15 ft in the air when the turbulence hit and that they had almost lost it. He also stated the tower supervisor told him that the tower has a local procedure prohibiting simultaneous departures on the 2 runways and that a mistake had been made. The pilot said he had filed a report on the incident with his company and e- mailed a safety report to his union representative. Type aircraft B737.

Original NASA ASRS Text

Title: ACR DEPARTING S IS HIT BY JET BLAST FROM A B757 APPARENTLY DEPARTING W ON A CROSS RWY NOT CONNECTED.

Narrative: MSY TWR CLRED US FOR TKOF RWY 19 (ACR #1). AT ROTATION WE WERE HIT BY JET BLAST FROM AN ACR #2 B757 IN POS ON RWY 28. EXTREME LATERAL AND LONGITUDINAL DISPLACEMENT, 20-30 DEGS ROLL AND 50 FT LATERAL DISPLACEMENT FROM RWY CTRLINE. EXTREMELY HAZARDOUS SIT. MSY TWR SHOULD NEVER CLR AN ACFT FOR TKOF ON RWY 28 WITH AN ACFT ROLLING ON RWY 19. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: PLT ON FLT DEPARTING RWY 19 AT MSY CALLED AND STATED THAT ON ARR AT DEST HE CALLED THE TWR SUPVR AT MSY AND COMPLAINED ABOUT GETTING SEVERE JET BLAST FROM THE TFC DEPARTING RWY 28. HE SAID HE WAS ABOUT 10-15 FT IN THE AIR WHEN THE TURB HIT AND THAT THEY HAD ALMOST LOST IT. HE ALSO STATED THE TWR SUPVR TOLD HIM THAT THE TWR HAS A LCL PROC PROHIBITING SIMULTANEOUS DEPS ON THE 2 RWYS AND THAT A MISTAKE HAD BEEN MADE. THE PLT SAID HE HAD FILED A RPT ON THE INCIDENT WITH HIS COMPANY AND E- MAILED A SAFETY RPT TO HIS UNION REPRESENTATIVE. TYPE ACFT B737.

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.

Air carrier departing south is hit by jet blast from a B757 apparently departing west on a cross runway not connected.