Philadelphia International Airport
Aircraft Accident/Incident Report

Philadelphia, Pennsylvania 19113
Sunday, November 16, 2008 9:34 EST

NTSB Narrative Summary Released at Completion of Accident

The airplane was on approach for landing. When the landing gear was selected to the extended position, the main landing gear extended properly but the nose landing gear did not. The crew performed a go-around, exited the airport airspace, and unsuccessfully attempted to extend the nose landing gear using several checklists and in consult with ground-based maintenance personnel. A subsequent fly-by of the air traffic control tower confirmed that the nose landing gear doors were open, but that the nose landing gear was not extended. The captain subsequently landed the airplane with the nose landing gear retracted and delayed lowering the nose until the slowest speed possible. The nose of the airplane contacted the runway and the airplane slid for about 525 feet before it stopped. There was no fire, and the passengers deplaned normally at the scene. On-site examination of the airplane and a laboratory examination of the nosegear components revealed that the steering links had been circumferentially loaded in tension beyond their load-carrying capacity. Failure of the steering links allowed the nosewheels to rotate in the wheel well and become wedged within the structure. Hardness testing satisfied the manufacturer's minimum requirements and no determination could be made as to when the overload occurred.

NTSB Probable Cause Narrative

The mechanical overload of the nosewheel steering links for undetermined reasons, which resulted in nose landing gear rotation and its subsequent wedging within the wheel well structure.

Event Information

Type of Event Incident
Event Date 11/16/2008
Event Day of the Week Sunday
Time of Event 934
Event Time Zone Eastern Standard Time
Event City Philadelphia
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 19113
Event Date Year 2008
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 395205N
Event Location Longitude 0751420W
Event Location Airport Philadelphia International
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 --
Airport Elevation 36
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 954 Eastern Standard Time
Direction of event from weather observation facility (degrees) 358
Weather Observation Facility ID PHL
Elevation of weather observation facility 36
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) -3
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 24
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 30
Altimeter Setting at event time (in. Hg) 29.7
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 38
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 27089
NTSB Notification Source FAA Eastern Region ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 21 2010 10:24PM
User who most recently changed record coxp
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N326EN
NTSB Number ERA09IA056
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name DeHavilland
Aircraft Model DHC-8-311
Aircraft Series Identifier --
Aircraft Serial Number 234
Certified Max Gross Weight 43200
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats 2
Passenger Seats 50
Total number of seats on the aircraft 54
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Oct 1 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 33224
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name Wells Fargo bank Northwest NA Trustee
Aircraft Owner Street Address 299 S Main St
Aircraft Owner City Salt Lake City
Aircraft Owner State UT
Aircraft Owner Country USA
Aircraft Owner Zipcode 84111
Operator is an individual? No
Operator Name Piedmont Airlines
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Salisbury
Operator State MD
Operator Country USA
Operator Zip code 21801
Operator Code HNAA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code ABE
Departure City Allentown
Departure State PA
Departure Country USA
Departure Time 750
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code PHL
Destination City Philadelphia
Destination State PA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 26 2010 3:18PM
User who most recently changed record etcs
Since inspection or accident Time of Accident
Event Location Runway Number and Location 27L
Runway Length 10506
Runway Width 200
Sight Seeing flight No
Air Medical Flight No
Medical Flight --