Aircraft Accident/Incident Report

Portland, Oregon 97124
Saturday, November 25, 1995 15:23 PST

NTSB Narrative Summary Released at Completion of Accident

THE CAPTAIN REPORTED THAT AT THE BEGINNING OF THE DESCENT FOR LANDING HE TURNED ON THE SEATBELT SIGN AND INFORMED THE CABIN CREW TO SECURE THE CABIN EARLY BECAUSE OF SUSPECTED TURBULENCE. HE DID NOT URGE THE FLIGHT ATTENDANTS TO BE SEATED IMMEDIATELY, BECAUSE NONE OF THE WEATHER INFORMATION HE RECEIVED AT THE TIME INDICATED ANYTHING OTHER THAN THE POSSIBILITY OF LIGHT TURBULENCE. ABOUT 15 MINUTES LATER, WHILE DESCENDING THROUGH FLIGHT LEVEL 200, THE AIRPLANE BRIEFLY ENCOUNTERED WHAT THE CAPTAIN DESCRIBED AS MODERATE TURBULENCE. ONE OF THE FLIGHT ATTENDANTS WAS STILL SECURING THE CABIN AT THE TIME AND FELL BACKWARDS ONTO A STOVE IN THE GALLEY, SUSTAINING A FRACTURED SHOULDER. WEATHER INFORMATION RECEIVED AFTER THE ACCIDENT REVEALED THAT MODERATE TURBULENCE OR SIGNIFICANT WEATHER REPORTS WERE NOT FORECAST FOR THE ALTITUDE OF OCCURRENCE BY THE NATIONAL WEATHER SERVICE.

NTSB Probable Cause Narrative

AN UNEXPECTED ENCOUNTER WITH UNFORECAST MODERATE HIGH LEVEL WINDSHEAR AND TURBULENCE AS THE FLIGHT ATTENDANT WAS PERFORMING HIS DUTIES DURING DESCENT.

Event Information

Type of Event Accident
Event Date 11/25/1995
Event Day of the Week Saturday
Time of Event 1523
Event Time Zone Pacific Standard Time
Event City PORTLAND
Event State OREGON
Event Country --
Zipcode of the event site 97124
Event Date Year 1995
Event Date Month 11
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 Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 4500
Lowest Non-Ceiling Height 2000
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) 10
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 --
Injury Total None 111
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1968
NTSB Notification Source --
NTSB Notification Date Dec 1 1995 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:43PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N953UA
NTSB Number SEA96LA026
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 737-522
Aircraft Series Identifier 737-522
Aircraft Serial Number 26700
Certified Max Gross Weight 122500
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 149
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Nov 6 1995 12:00AM
Airframe hours since last inspection 149
Airframe Hours 7220
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WILMINGTON TRUST CO.
Aircraft Owner Street Address 1100 NORTH MARKET ST.
Aircraft Owner City WILMINGTON
Aircraft Owner State DE
Aircraft Owner Country
Aircraft Owner Zipcode 19890
Operator is an individual? --
Operator Name UNITED AIRLINES, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 66100
Operator City CHICAGO
Operator State IL
Operator Country
Operator Zip code 60666
Operator Code UALA
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 Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code SFO
Departure City SAN FRANCISCO
Departure State CA
Departure Country
Departure Time 1409
Departure Time Zone PST
Destination Same as Local Flt crash at destination city
Destination Airport Code PDX
Destination City
Destination State OR
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --