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19961216042759I

Incident
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FAA incident report · Boeing 727243 · Bedford, MA · December 16, 1996

FAA Aviation Safety Information Portal

© OpenStreetMap
Date
December 16, 1996 · 09:45 local
Place
Bedford, MA
Airport
Laurence G Hanscom Fld
Phase of flight
Ground Taxi, Other Airplane
Operating rules
Air carrier (Part 121)
Operator
S1NA
Aircraft
N521DB
Reported as
Boeing 727243
Reported engine
Pratt & Whitney JT8D9
People aboard
2
Fatal injuries
0
Pilot’s flight hours
29,000 total15,000 in this make and model100 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Narrative: sun pacific international, flt #8521, registration N521DB, B-727-243, while taxiing from ramp onto taxiway "sierra" in Bedford, MA, caused jet blast damage to five general aviation aircraft that were tied down on the ramp at 0950 EST. The Boeing 727 was cleared to taxi using taxiway sierra to runway 11. This "would have been" accomplished by taxiing (via straight ahead) to taxiway sierra, via tango, via whiskey, to the approach end of runway 11. The aircraft taxied from the terminal area (straight ahead) to taxiway sierra. As the aircraft made the right turn onto sierra, the right mains went off the hard surface onto the grass area. The grass slowed the aircraft's forward speed, and the pilot added additional thrust to over come the drag encountered by the soft grass and mud. When the aircraft slowed due the grass and mud, the engines were now pointed at a critical angle to the small aircraft in the tie down area. A total of five aircraft were damaged from the jet blast from N521DB. One aircraft was completely flipped over by the blast, the other four aircraft were blown into each other. All five aircraft are owned by executive flyers aviation inc. the PIC ran off taxiway (hard surface) onto grass. privacy data omitted

As the FAA filed it

NARRATIVE: SUN PACIFIC INTERNATIONAL, FLT #8521, REGISTRATION N521DB, B-727-243, WHILE TAXIING FROM RAMP ONTO TAXIWAY "SIERRA" IN BEDFORD, MA, CAUSED JET BLAST DAMAGE TO FIVE GENERAL AVIATION AIRCRAFT THAT WERE TIED DOWN ON THE RAMP AT 0950 EST. THE BOEING 727 WAS CLEARED TO TAXI USING TAXIWAY SIERRA TO RUNWAY 11. THIS "WOULD HAVE BEEN" ACCOMPLISHED BY TAXIING (VIA STRAIGHT AHEAD) TO TAXIWAY SIERRA, VIA TANGO, VIA WHISKEY, TO THE APPROACH END OF RUNWAY 11. THE AIRCRAFT TAXIED FROM THE TERMINAL AREA (STRAIGHT AHEAD) TO TAXIWAY SIERRA. AS THE AIRCRAFT MADE THE RIGHT TURN ONTO SIERRA, THE RIGHT MAINS WENT OFF THE HARD SURFACE ONTO THE GRASS AREA. THE GRASS SLOWED THE AIRCRAFT'S FORWARD SPEED, AND THE PILOT ADDED ADDITIONAL THRUST TO OVER COME THE DRAG ENCOUNTERED BY THE SOFT GRASS AND MUD. WHEN THE AIRCRAFT SLOWED DUE THE GRASS AND MUD, THE ENGINES WERE NOW POINTED AT A CRITICAL ANGLE TO THE SMALL AIRCRAFT IN THE TIE DOWN AREA. A TOTAL OF FIVE AIRCRAFT WERE DAMAGED FROM THE JET BLAST FROM N521DB. ONE AIRCRAFT WAS COMPLETELY FLIPPED OVER BY THE BLAST, THE OTHER FOUR AIRCRAFT WERE BLOWN INTO EACH OTHER. ALL FIVE AIRCRAFT ARE OWNED BY EXECUTIVE FLYERS AVIATION INC. THE PIC RAN OFF TAXIWAY (HARD SURFACE) ONTO GRASS. ^PRIVACY DATA OMITTED^