Seattle Tacoma Airport
Aircraft Accident/Incident Report

Seattle, Washington 98188
Thursday, June 30, 1988 7:02 PDT

NTSB Narrative Summary Released at Completion of Accident

CREW NOTED INFLIGHT INDICATIONS OF LOSS OF HYDRAULIC FLUID, THEN CARRIED OUT STANDARD PROCEDURES PER CREW MANUAL. EMERG HYD SYS USED TO LOWER FLAPS FOR LNDG. ACFT LANDED WITH FOUR RIGHT BRAKES LOCKED. THE TIRES BLEW AND THE WHEELS WERE GROUND FLAT. INVESTIGATION REVEALED A RUPTURED #3 HYDRAULIC PUMP PRESSURE LINE AND AN IMPROPERLY RIGGED EMERGENCY HYDRAULIC PUMP CONTROL ARM.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 6/30/1988
Event Day of the Week Thursday
Time of Event 702
Event Time Zone Pacific Daylight Time
Event City SEATTLE
Event State WASHINGTON
Event Country --
Zipcode of the event site 98188
Event Date Year 1988
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SEATTLE TACOMA
Event Location Nearest Airport ID SEA
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 429
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 700 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID SEA
Elevation of weather observation facility 429
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 8000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 11
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
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 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 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5033
NTSB Notification Source --
NTSB Notification Date Jun 30 1988 12:00AM
NTSB Notification Time 706
Fiche Number and/or location -used to find docket information 37159
Date of most recent change to record Dec 13 2000 11:51AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N791FT
NTSB Number SEA88IA121
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 Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name MCDONNELL DOUGLAS
Aircraft Model DC-8-73F
Aircraft Series Identifier DC-8-73F
Aircraft Serial Number 46845
Certified Max Gross Weight 240000
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 5
Number of Engines 4
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection --
Airframe hours since last inspection 2852
Airframe Hours 54083
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name NATIONAL FUNDING CO
Aircraft Owner Street Address 16168 BEACH BLVD.
Aircraft Owner City HUNTINGTON
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92647
Operator is an individual? --
Operator Name EMERY AIR FREIGHT
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 834 WILLOW RUN AIRPORT
Operator City YPSILANTI
Operator State MI
Operator Country
Operator Zip code 48198
Operator Code RAXA
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code HDY
Departure City DAYTON
Departure State OH
Departure Country
Departure Time 241
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
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 16L
Runway Length 11900
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --