PIC of air carrier medium large transport accused of causing jet blast damage to an small aircraft as aircraft taxied out for takeoff at bos. Problem was not observed by the flight crew.

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Attributes
ACN	93031
Time
Date	198808
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos
State Reference	MA
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	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : holding ground other : taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Flight Phase	ground : holding ground other : taxi
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : commercial
Experience	flight time last 90 days : 205 flight time total : 13500 flight time type : 7500
ASRS Report	93031
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8000 flight time type : 1900
ASRS Report	93014
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

We departed gate and received clearance from bos ground control to taxi to runway 9 via the south outer and sierra txwys to hold short of runway 4L. We taxied as cleared, stopping at least once on the south outer before holding short of runway 4L for about 5 mins before being cleared to cross runway 4L. At that time we were #3 or #4 for takeoff on runway 9. Ground control called us before takeoff to ask our aircraft number (west/O explanation). After takeoff departure control requested that I telephone the bos tower and ask for FAA supervisor when we land in dca (west/O explanation). I called as requested and was told that my jet blast had damaged a light aircraft wing tip propeller struck the ground. Throughout the taxi I applied only enough power to start my aircraft moving, then returned to idle power, well within normal operating limits. GA pilots must be made aware of the danger of jet blast and that the danger area extends several hundred feet behind the jet aircraft.

Original NASA ASRS Text

Title: PIC OF ACR MLG ACCUSED OF CAUSING JET BLAST DAMAGE TO AN SMA AS ACFT TAXIED OUT FOR TKOF AT BOS. PROBLEM WAS NOT OBSERVED BY THE FLT CREW.

Narrative: WE DEPARTED GATE AND RECEIVED CLRNC FROM BOS GND CTL TO TAXI TO RWY 9 VIA THE S OUTER AND SIERRA TXWYS TO HOLD SHORT OF RWY 4L. WE TAXIED AS CLRED, STOPPING AT LEAST ONCE ON THE S OUTER BEFORE HOLDING SHORT OF RWY 4L FOR ABOUT 5 MINS BEFORE BEING CLRED TO CROSS RWY 4L. AT THAT TIME WE WERE #3 OR #4 FOR TKOF ON RWY 9. GND CTL CALLED US BEFORE TKOF TO ASK OUR ACFT NUMBER (W/O EXPLANATION). AFTER TKOF DEP CTL REQUESTED THAT I TELEPHONE THE BOS TWR AND ASK FOR FAA SUPVR WHEN WE LAND IN DCA (W/O EXPLANATION). I CALLED AS REQUESTED AND WAS TOLD THAT MY JET BLAST HAD DAMAGED A LIGHT ACFT WING TIP PROP STRUCK THE GND. THROUGHOUT THE TAXI I APPLIED ONLY ENOUGH PWR TO START MY ACFT MOVING, THEN RETURNED TO IDLE PWR, WELL WITHIN NORMAL OPERATING LIMITS. GA PLTS MUST BE MADE AWARE OF THE DANGER OF JET BLAST AND THAT THE DANGER AREA EXTENDS SEVERAL HUNDRED FEET BEHIND THE JET ACFT.

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.