Republic Airport
Aircraft Accident/Incident Report

Farmingdale, New York 11735
Wednesday, March 10, 2010 12:55 EST

NTSB Narrative Summary Released at Completion of Accident

The pilot-in-command stated that while passing through 35,000 feet mean sea level, the flightcrew heard a sound similar to a compressor stall, followed by a loss of power to the right engine. He immediately declared an emergency with air traffic control and initiated the checklist items for engine shutdown in-flight. Shortly thereafter, the cabin service representative informed him that the No. 4 outer window pane on the right side of the airplane had separated. The flightcrew made a visual approach back to the departure airport and landed without further incident. A bore scope examination of the engine revealed that it had experienced a compressor stall and flamed out as a result of debris from the No. 4 outer window pane being ingested into the engine. Review of the airplane logbooks revealed that all required inspections had been conducted on the window and no anomalies were noted. Further examination of the window revealed fractures in the outer pane, which originated from an area of preexisting progressive cracking, emanating from the exterior surface of the window. The initial cause of the cracking could not be determined.

NTSB Probable Cause Narrative

Progressive cracking from an undetermined initiation source, which resulted in the failure of the No. 4 cabin window outer pane, and the subsequent foreign object ingestion to the right engine.

Event Information

Type of Event Incident
Event Date 3/10/2010
Event Day of the Week Wednesday
Time of Event 1255
Event Time Zone Eastern Standard Time
Event City Farmingdale
Event State NEW YORK
Event Country --
Zipcode of the event site 11735
Event Date Year 2010
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 404344N
Event Location Longitude 0732448W
Event Location Airport Republic Airport
Event Location Nearest Airport ID FRG
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Eastern Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID FRG
Elevation of weather observation facility 82
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation EST
Lighting Conditions Day
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) 11
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.05
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 5
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 27974
NTSB Notification Source FAA Farmingdale FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Feb 16 2011 2:39PM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N155MM
NTSB Number ERA10IA170
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name GULFSTREAM AMERICAN CORP.
Aircraft Model G-1159A
Aircraft Series Identifier --
Aircraft Serial Number 325
Certified Max Gross Weight 69700
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats 14
Total number of seats on the aircraft 21
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Jan 7 2010 12:00AM
Airframe hours since last inspection 3571
Airframe Hours 7513
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91
Aircraft Owner Name N15MM LLC
Aircraft Owner Street Address CO CORPORATION TRUST CENTER
Aircraft Owner City WILMINGTON
Aircraft Owner State DE
Aircraft Owner Country USA
Aircraft Owner Zipcode 19801-1196
Operator is an individual? No
Operator Name North Eastern Aviation Corporation
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 8200 Republic Airport Suite 8
Operator City Farmingdale
Operator State NY
Operator Country USA
Operator Zip code 11735
Operator Code AOYA
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code FRG
Departure City Farmingdale
Departure State NY
Departure Country USA
Departure Time 1229
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code SUA
Destination City Stuart
Destination State FL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 16 2011 2:39PM
User who most recently changed record kenj
Since inspection or accident Time of Accident
Event Location Runway Number and Location 14
Runway Length 6827
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --