Aircraft Accident/Incident Report

Alma, Georgia 31510
Thursday, March 16, 1995 14:35 EST

NTSB Narrative Summary Released at Completion of Accident

WHILE EN ROUTE FROM NASSAU, BAHAMAS TO ATLANTA, GEORGIA THE DOMESTIC PASSENGER FLIGHT, A BOEING 727-200, ENCOUNTERED CLEAR AIR TURBULENCE AT FL370. THE AIRCRAFT HAD EXPERIENCE LIGHT CHOP PRIOR TO REACHING FL370, AND THE FASTEN SEAT BELT SIGN WAS ILLUMINATED. VISUAL METEOROLOGICAL CONDITIONS EXISTED AT FL370, AND THE CREW HAD NO INDICATION THAT THEY MAY ENCOUNTER ANY SEVERE TURBULENCE. BETWEEN 1435:31.42 AND 1435:31.45, WITHOUT WARNING, THE AIRCRAFT ROLLED 52.2 DEGREES RIGHT AND 58.9 DEGREES LEFT. THE VERTICAL ACCELERATION REACHED A MAXIMUM OF 1.93 'G' AND A MINIMUM OF -0.80 'G' WITHIN THE SAME TIME INTERVAL. THE AIRCRAFT LOST 1,500 FEET IN ALTITUDE.

NTSB Probable Cause Narrative

THE AIRCRAFT'S ENCOUNTER WITH UNFORECAST CLEAR AIR TURBULENCE.

Event Information

Type of Event Accident
Event Date 3/16/1995
Event Day of the Week Thursday
Time of Event 1435
Event Time Zone Eastern Standard Time
Event City ALMA
Event State GEORGIA
Event Country --
Zipcode of the event site 31510
Event Date Year 1995
Event Date Month 3
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 Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1452 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 320
Weather Observation Facility ID AMG
Elevation of weather observation facility 200
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 2500
Lowest Non-Ceiling Height 1000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 4
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 5
Injury Total None 132
Injury Total Serious 1
Injury Total All 6
Investigating Agency NTSB
NTSB Docket Number (internal use) 502
NTSB Notification Source --
NTSB Notification Date Mar 16 1995 12:00AM
NTSB Notification Time 1547
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:08PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N295WA
NTSB Number ATL95LA062
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 727-200
Aircraft Series Identifier 727-200
Aircraft Serial Number 22532
Certified Max Gross Weight 191000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 153
Number of Engines 3
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Mar 5 1995 12:00AM
Airframe hours since last inspection 80
Airframe Hours 42820
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DELTA AIR LINES
Aircraft Owner Street Address HARTSFIELD INTL AIRPORT
Aircraft Owner City ATLANTA
Aircraft Owner State GA
Aircraft Owner Country
Aircraft Owner Zipcode 30320
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code DALA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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/Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code NAS
Departure City NASSAU
Departure State BI
Departure Country
Departure Time 1335
Departure Time Zone AST
Destination Same as Local Flt --
Destination Airport Code ATL
Destination City ATLANTA
Destination State GA
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 20 2002 12:42PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --