Teterboro Airport
Aircraft Accident/Incident Report

Teterboro, New Jersey 07608
Friday, August 21, 2009 3:05 EDT

NTSB Narrative Summary Released at Completion of Accident

The airplane was operating as a corporate flight transporting medical specimens on a night, visual approach in visual meteorological conditions when the accident occurred. The flight was scheduled to be a single-pilot operation conducted under the provisions of 14 Code of Federal Regulations Part 91, and the pilot-in-command (PIC) had been assigned to the flight. Although the second-in-command (SIC), also a Quest Diagnostics pilot, was not assigned to the flight, he asked the PIC if he could accompany him on the flight to gain familiarization with operations into Teterboro Airport. Typically, the PIC flies the airplane from the left seat; however, the PIC on this flight allowed the SIC to occupy the left seat and fly the airplane. The investigation could not determine if the pilots had coordinated responsibilities for the flight before departure or if the PIC was providing additional training to the SIC during the flight. Radar data indicated that, while on the base leg of the traffic pattern, the airplane had an airspeed of about 204 knots, which exceeded the maximum flap extension speed by more than 50 knots and the maximum landing gear extension speed by more than 80 knots. According to the SIC, during this critical portion of the approach to landing, the nonflying PIC remained focused on providing familiarization of the airport and city environment to the SIC, who was flying the airplane, and the PIC failed to monitor the airplane’s airspeed. After the SIC recognized the airplane’s excessive approach speed close to the runway environment, he attempted to slow the airplane. However, he inadvertently retarded the propeller levers and feathered the propellers instead of retarding the throttle levers. Recognizing the resultant loss of thrust, the PIC challenged the SIC’s actions and stated that both engines had experienced power loss. The airplane’s unfeathering accumulators had been removed; therefore, it was not possible for either pilot to quickly unfeather the propellers and reestablish engine power. Approaching the runway centerline at both low altitude and high airspeed and with the propellers feathered, the pilots were unable to slow the airplane and descend before overflying the runway. The airplane crossed the runway threshold at 300 feet and 186 knots (90 knots more than the approach speed of 96 knots), departed airport property, struck objects, and burst into flames. Chairman Hersman and Member Rosekind did not approve this brief. Chairman Hersman filed a dissenting statement, which Member Rosekind joined. Member Rosekind filed a dissenting statement, which Chairman Hersman joined. Member Sumwalt filed a concurring statement, which Vice Chairman Hart and Member Weener joined. The statements can be found in the public docket for this accident.

NTSB Probable Cause Narrative

The complete loss of thrust due to the second-in-command’s (SIC) inadvertent feathering of both propellers during a high-speed, low-altitude approach. Contributing to the accident was the pilot-in-command’s inadequate monitoring of the SIC’s performance. Chairman Hersman and Member Rosekind did not approve this probable cause. Chairman Hersman filed a dissenting statement, which Member Rosekind joined. Member Rosekind filed a dissenting statement, which Chairman Hersman joined. Member Sumwalt filed a concurring statement, which Vice Chairman Hart and Member Weener joined. The statements can be found in the public docket for this accident.

Event Information

Type of Event Accident
Event Date 8/21/2009
Event Day of the Week Friday
Time of Event 305
Event Time Zone Eastern Daylight Time
Event City Teterboro
Event State NEW JERSEY
Event Country --
Zipcode of the event site 07608
Event Date Year 2009
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 405100N
Event Location Longitude 0740323W
Event Location Airport Teterboro Airport
Event Location Nearest Airport ID TEB
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 9
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 330 Eastern Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID TEB
Elevation of weather observation facility 9
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EDT
Lighting Conditions Night
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
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) 27
Dew Point at event time (in degress fahrenheit) 23
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.88
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 28457
NTSB Notification Source NTSB Comm Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 7 2011 4:21PM
User who most recently changed record rows
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N167TB
NTSB Number ERA09LA469
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name RAYTHEON AIRCRAFT COMPANY
Aircraft Model 58
Aircraft Series Identifier --
Aircraft Serial Number TH-1905
Certified Max Gross Weight 5400
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 27 2009 12:00AM
Airframe hours since last inspection 67
Airframe Hours 3497
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Street Address --
Aircraft Owner City READING
Aircraft Owner State PA
Aircraft Owner Country USA
Aircraft Owner Zipcode 19605
Operator is an individual? No
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City READING
Operator State PA
Operator Country USA
Operator Zip code 19605
Operator Code --
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code PTW
Departure City Pottstown
Departure State PA
Departure Country USA
Departure Time 252
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code TEB
Destination City Teterboro
Destination State NJ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 18 2011 10:42AM
User who most recently changed record broda
Since inspection or accident Time of Accident
Event Location Runway Number and Location 01
Runway Length 7000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --