Aircraft Accident/Incident Report

Dominica Dominican Republic
Saturday, September 17, 2011 14:20 AST

NTSB Narrative Summary Released at Completion of Accident

On September 17, 2011, at 2:20 pm AST, an Executive Airlines ATR-72, operated as American Eagle, registered as N399AT, experienced limited aileron control in the left direction. While holding in the landing pattern due to weather delays, the crew noticed an “A/P AILERON MISTRIM” indication. The crew disconnected the autopilot and reported that the aileron control did not respond normally; they had full right aileron travel but limited left aileron travel. After landing, it was discovered that control cable P/N S2211001100000 was broken. This cable was connected to the autopilot actuator P/N 7002260-822, S/N 93074323. The flight was an IFR flight conducted under 14 CFR Part 121 from San Juan, Puerto Rico (TJSJ), to Dominica (TDPD). There were no reported injuries or damage to the aircraft.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 9/17/2011
Event Day of the Week Saturday
Time of Event 1420
Event Time Zone Atlantic Standard Time
Event City Dominica
Event State --
Event Country DOMINICAN REPUBLIC
Zipcode of the event site --
Event Date Year 2011
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Unknown
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions --
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) --
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury --
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All --
Investigating Agency --
NTSB Docket Number (internal use) --
NTSB Notification Source Pilot/Operator Aircraft Accide
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 11 2011 2:12PM
User who most recently changed record hura
Basic weather conditions --
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N399AT
NTSB Number ENG11NA052
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed Unknown
Flight plan Was Activated? --
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AEROSPATIALE
Aircraft Model ATR 72-212
Aircraft Series Identifier --
Aircraft Serial Number 399
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 76
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WELLS FARGO BANK NORTHWEST NA TRUSTEE
Aircraft Owner Street Address MAC U1228-120
Aircraft Owner City SALT LAKE CITY
Aircraft Owner State UT
Aircraft Owner Country USA
Aircraft Owner Zipcode 84111-2580
Operator is an individual? No
Operator Name Executive Airlines
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Carolina
Operator State PR
Operator Country USA
Operator Zip code 00979
Operator Code TRBA
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 International
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 TJSJ
Departure City San Juan
Departure State PR
Departure Country USA
Departure Time 1340
Departure Time Zone AST
Destination Same as Local Flt --
Destination Airport Code TDPD
Destination City Dominica
Destination State --
Destination Country DO
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 11 2011 2:12PM
User who most recently changed record hura
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight --
Air Medical Flight --
Medical Flight --