N/A Airport
Aircraft Accident/Incident Report

Crane Hill, Alabama 35053
Monday, September 17, 2012 14:00 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot initially delayed the cross-country flight for convective weather, but later took off, encountered weather in a climb, and advised an air traffic controller that he was looking at “ADS-B” (Automatic Dependent Surveillance-Broadcast). As the flight progressed, the airplane climbed to 13,000 feet, and the pilot asked the next controller if there were any reports of icing ahead about 15,000 feet. The controller noted no reports of icing, “but quite a bit of deviation, quite a bit of clouds and precipitation in front of you.” The pilot requested 15,000 feet “to see if I can see things better,” which was approved by the controller. Upon switching to the next controller, the pilot was advised of moderate to extreme precipitation for the next 90 miles. The pilot then stated that in looking at the ADS-B, he needed to deviate. Deviation was approved, and, 2 minutes later, the pilot advised the controller that he was making another deviation, which the controller acknowledged. Eighteen minutes after that, the controller told the pilot to change radio frequency, and the pilot responded, “unable, we’re battling some pretty bad...”. The airplane subsequently made numerous turns and altitude excursions, turning 90 degrees to the right and descending to 14,600 feet, then turning another 90 degrees right and descending to 14,100 feet. After making a sharp left turn, the airplane climbed to 15,500 feet, then made another sharp left turn, and, as it began a final rapid descent to the ground, the pilot issued several mayday calls. An examination of the wreckage revealed no mechanical anomalies that would have precluded normal operation. The expected ADS-B cockpit depiction compared to real-time, ground-based radar indicated significant differences in the depiction of hazardous reflectivity (rain). In the ADS-B product, the airplane was depicted as being clear of moderate or heavy rain as it made its final various turns. However, rea-time radar imagery indicated that the airplane would have been in or near moderate-to-heavy rain. The pilot indicated to the controller that he was using ADS-B in a tactical manner; however, ADS-B is intended to be used in a strategic manner . It is unknown why the pilot lost control of the airplane in moderate-to-heavy rain; he may have become confused and lost situational awareness when turning into what he thought were clearer conditions per the ADS-B depiction but was actually worse weather. ADS-B does not show what the weather is; it shows what the weather was up to 15 to 20 minutes earlier.

NTSB Probable Cause Narrative

The pilot’s loss of control in moderate-to-heavy rain. Contributing to the accident was the pilot’s reliance on ADS-B for tactical weather avoidance.

Event Information

Type of Event Accident
Event Date 9/17/2012
Event Day of the Week Monday
Time of Event 1400
Event Time Zone Central Daylight Time
Event City Crane Hill
Event State ALABAMA
Event Country --
Zipcode of the event site 35053
Event Date Year 2012
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 335835N
Event Location Longitude 0870702W
Event Location Airport N/A
Event Location Nearest Airport ID --
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 1355 Central Daylight Time
Direction of event from weather observation facility (degrees) 250
Weather Observation Facility ID JFX
Elevation of weather observation facility 483
Distance of event from weather observation facility (units?) 11
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.82
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 33383
NTSB Notification Source FAA Southern C-ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Nov 4 2014 2:46PM
User who most recently changed record kenj
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1085A
NTSB Number ERA12FA566
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion Unknown
Aircraft Manufacturer's Full Name MOONEY
Aircraft Model M20M
Aircraft Series Identifier --
Aircraft Serial Number 27-0033
Certified Max Gross Weight --
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 4 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 1590
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SC LEASING LLC
Aircraft Owner Street Address --
Aircraft Owner City WILMINGTON
Aircraft Owner State DE
Aircraft Owner Country USA
Aircraft Owner Zipcode 19808-1645
Operator is an individual? Yes
Operator Name Gary Cohen
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Hendersonville
Operator State TN
Operator Country USA
Operator Zip code 37075
Operator Code --
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code DTN
Departure City Destin
Departure State FL
Departure Country USA
Departure Time 1245
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code M33
Destination City Gallatin
Destination State TN
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 4 2014 2:46PM
User who most recently changed record kenj
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --