Philadelphia Intl Airport
Aircraft Accident/Incident Report

Philadelphia, Pennsylvania 19153
Tuesady, February 5, 1985 23:51 EST

NTSB Narrative Summary Released at Completion of Accident

AFTER LNDG, THE ACFT WAS PARKED ON THE RAMP FOR APRX 39 MIN TO LOAD CARGO. DRG THAT TIME, LGT FREEZING DRIZZLE WAS FALLING, INTERMITTENTLY MIXED WITH ICE PELLETS & SNW. THE CREW CHECKED THE ACFT SURFACES FROM THE COCKPIT & ENTRY DOOR, BUT OBSERVED NO ICE OR SNW ADHERING TO THE TOPS OF THE WINGS, NOSE SECTION, WINDSHIELD OR ABOVE THE DOOR. THE CAPT DECLINED AN OFFER TO DE-ICE, THO OTR ACFT WERE BEING DE-ICED. THE TAKEOFF WAS NRML (18 DEG NOSE UP ATTITUDE) UNTIL JUST AFTER LIFT-OFF, THEN THE ACFT ENTERED AN UNCOMMANDED L ROLL & BOTH ENGS COMPRESSOR STALLED. THE CAPT CORRECTED WITH L AILERON & RUDDER, THEN BEGAN ABORTING THE TAKEOFF. THE ACFT TOUCHED DWN LEFT OF THE RWY ON THE TAIL SKID & R WING TIP,APRX 5600' FROM THE THRESHOLD & ON A 070 DEG HDG. IT THEN TRAVELED ANOTHER 2025' IN A SWEEPING RIGHT ARC, HITTING 2 RWY SIGNS & CAME TO REST HDG WEST WITH THE R PYLON BENT DOWN. INV REVEALED A THIN LAYER OF ICE (EST 0.15' THICK) WOULD HAVE BEEN ON THE WINGS, RAISING THE ACFT'S STALL SPEED. WHEN DC-9-15 ACFT STALL, ENGS ARE SUSCEPTIBLE TO COMPRESSOR STALLS.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 2/5/1985
Event Day of the Week Tuesday
Time of Event 2351
Event Time Zone Eastern Standard Time
Event City PHILADELPHIA
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 19153
Event Date Year 1985
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport PHILADELPHIA INTL
Event Location Nearest Airport ID PHL
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 21
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 2351
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID PHL
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Night/Dark
Lowest Ceiling Height 1000
Lowest Non-Ceiling Height 1000
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 2
Air Temperature at event time (in degrees celsius) -2
Dew Point at event time (in degress fahrenheit) -4
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 2
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2662
NTSB Notification Source --
NTSB Notification Date Feb 6 1985 12:00AM
NTSB Notification Time 100
Fiche Number and/or location -used to find docket information 28363
Date of most recent change to record Feb 26 2001 8:35AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N926AX
NTSB Number DCA85AA013
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name McDonnell Douglas
Aircraft Model DC-9-15
Aircraft Series Identifier DC-9-15
Aircraft Serial Number 47002
Certified Max Gross Weight 91700
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name --
Aircraft Owner Street Address --
Aircraft Owner City WILMINGTON
Aircraft Owner State OH
Aircraft Owner Country --
Aircraft Owner Zipcode 45177
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code ABEX
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code PHL
Departure City
Departure State
Departure Country
Departure Time 2349
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code ILN
Destination City WILMINGTON
Destination State OH
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 21 2008 4:08PM
User who most recently changed record NTSB\HAMG
Since inspection or accident --
Event Location Runway Number and Location 9L
Runway Length 9500
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --