During landing flare at phl, medium large transport rolled violently when about 6' above the ground.

Attributes
ACN	89287
Time
Date	198806
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : phl
State Reference	PA
Altitude	agl bound lower : 6 agl bound upper : 6
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : phl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 208 flight time total : 4270 flight time type : 510
ASRS Report	89287
Person 2
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	other anomaly
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Air Traffic Incident	other
Situations
Airport	other physical facility

Narrative:

During the roundout phase of landing on runway 29 at phl rolled violently to the left. It took full control deflection to the right to stop the roll and regain control of the aircraft. I suspect either an aircraft was adding power to taxi onto runway 22R or an aircraft on runway 22R was pwred up awaiting takeoff clearance.

Original NASA ASRS Text

Title: DURING LNDG FLARE AT PHL, MLG ROLLED VIOLENTLY WHEN ABOUT 6' ABOVE THE GND.

Narrative: DURING THE ROUNDOUT PHASE OF LNDG ON RWY 29 AT PHL ROLLED VIOLENTLY TO THE LEFT. IT TOOK FULL CONTROL DEFLECTION TO THE RIGHT TO STOP THE ROLL AND REGAIN CONTROL OF THE ACFT. I SUSPECT EITHER AN ACFT WAS ADDING PWR TO TAXI ONTO RWY 22R OR AN ACFT ON RWY 22R WAS PWRED UP AWAITING TKOF CLRNC.

Data retrieved from NASA's ASRS site as of August 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.