Widebody transport holding between runways cleared to move into takeoff position as medium large transport was landing behind the widebody transport. Jet blast encounter caused medium large transport to roll into a 30 degree bank. Flight crew recovered and landed.

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Attributes
ACN	144892
Time
Date	199005
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 50
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
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 : commercial
Experience	flight time last 90 days : 200 flight time total : 8500 flight time type : 4500
ASRS Report	144892
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : atp
Events
Anomaly	other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

During landing at sfo on runway 28L (of which only 7000' was available) a widebody transport was holding short of 28R on the median taxiway. During our transition for landing flare over the approach lights (in the TDZ on 28L) widebody transport was cleared into position on 28R. Needless to say due to the close proximity of these parallel runways his jet blase (primarily from his #2 engine) rolled our medium large transport aircraft into a 30 degree bank very close to the ground. We were very nearly confronted with an extremely hazardous landing roll due to controller negligence.

Original NASA ASRS Text

Title: WDB HOLDING BETWEEN RWYS CLEARED TO MOVE INTO TKOF POSITION AS MLG WAS LNDG BEHIND THE WDB. JET BLAST ENCOUNTER CAUSED MLG TO ROLL INTO A 30 DEGREE BANK. FLT CREW RECOVERED AND LANDED.

Narrative: DURING LNDG AT SFO ON RWY 28L (OF WHICH ONLY 7000' WAS AVAILABLE) A WDB WAS HOLDING SHORT OF 28R ON THE MEDIAN TXWY. DURING OUR TRANSITION FOR LNDG FLARE OVER THE APCH LIGHTS (IN THE TDZ ON 28L) WDB WAS CLRED INTO POS ON 28R. NEEDLESS TO SAY DUE TO THE CLOSE PROX OF THESE PARALLEL RWYS HIS JET BLASE (PRIMARILY FROM HIS #2 ENG) ROLLED OUR MLG ACFT INTO A 30 DEG BANK VERY CLOSE TO THE GND. WE WERE VERY NEARLY CONFRONTED WITH AN EXTREMELY HAZARDOUS LNDG ROLL DUE TO CTLR NEGLIGENCE.

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.