Portland Intl Airport
Aircraft Accident/Incident Report

Portland, Oregon 97218
Sunday, March 20, 1988 16:04 PST

NTSB Narrative Summary Released at Completion of Accident

CREW WAS UNABLE TO LOWER THE LEFT MAIN LNDG GEAR. CREW THEN EXECUTED AN EMERGENCY LANDING ON THE RIGHT MAIN AND NOSE GEAR WITH MINOR DAMAGE TO THE ACFT. THE INVESTIGATION REVEALED THAT THE LEFT MAIN GEAR DOOR ATTACH FITTING HAD A FATIGUE FRACTURE.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 3/20/1988
Event Day of the Week Sunday
Time of Event 1604
Event Time Zone Pacific Standard Time
Event City PORTLAND
Event State OREGON
Event Country --
Zipcode of the event site 97218
Event Date Year 1988
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PORTLAND INTL
Event Location Nearest Airport ID PDX
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 26
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1608 Pacific Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID PDX
Elevation of weather observation facility 26
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 6500
Lowest Non-Ceiling Height 4500
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) 30
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 17
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 78
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5008
NTSB Notification Source --
NTSB Notification Date Mar 20 1988 12:00AM
NTSB Notification Time 1630
Fiche Number and/or location -used to find docket information 36066
Date of most recent change to record Dec 13 2000 11:38AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N515DA
NTSB Number SEA88IA065
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 727-232
Aircraft Series Identifier 727-232
Aircraft Serial Number 21431
Certified Max Gross Weight 185000
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 148
Number of Engines 3
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Mar 8 1988 12:00AM
Airframe hours since last inspection 101
Airframe Hours 29397
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name WILMINGTON TRUST CO.
Aircraft Owner Street Address RODNEY SQ. N
Aircraft Owner City WILMINGTON
Aircraft Owner State DE
Aircraft Owner Country
Aircraft Owner Zipcode 19890
Operator is an individual? --
Operator Name DELTA AIR LINES, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address HARTSFIELD INT'L AIRPORT
Operator City ATLANTA
Operator State GA
Operator Country
Operator Zip code 30320
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 Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code SLC
Departure City SALT LAKE CITY
Departure State UT
Departure Country
Departure Time 1355
Departure Time Zone MST
Destination Same as Local Flt crash at destination city
Destination Airport Code PDX
Destination City PORTLAND
Destination State OR
Destination Country
Specific Phase of Flight Landing
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 20
Runway Length 7000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --