DCA88MA052

NTSB accident investigation · de Havilland DHC-8 · Seattle, WA · April 16, 1988

Accident · Serious injuriesMajor investigationFinal report
Date
April 15, 1988, 18:32 local (Apr 16, 1988, 01:32 UTC)
Place
Seattle, WA
Injuries
4 serious, 27 minor, 9 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N819PHde Havilland DHC-8
Weather
Visual (VMC) · Day
Status
Completed · report April 24, 1990
Report
Approved by Office Director
NTSB office
Major Investigations Division
Safety recommendations
Yes
FAA report
19880415048859A
Case key
15897

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Fire/explosionClimb - to cruise
Fuel system,filter - leakCause
Maintenance,installation - improperManufacturerCause
Maintenance,inspection - improperManufacturerCause
Maintenance,inspection - improperCompany maintenance personnelCause
Door,inspection - unlatchedFactor
FireApproach - vfr pattern - base leg/base to final
Fire extinguisher,powerplant - disabledFactor
Loss of engine powerApproach - vfr pattern - base leg/base to final
Loss of control - on ground/waterLanding - roll
Hydraulic system,line - burned
Electrical system,electric wiring - burned
Hydraulic system - failure,total
On ground/water collision with objectLanding - roll
Object - airport facility

Analysis

Shortly after tkof from Seattle-tacoma intl airport, the crew noted a rt eng power loss and decided to return for a precautionary lndg. After lowering the lndg gear, a massive fire was discovered in the rt eng nacelle. After lndg, directional control and all braking was lost. The acft departed the left side of the rwy 16L after the left power lever was moved to flt idle. The f/o advised twr that the acft was out of control. The acft rolled onto the ramp area where it struck a rwy designator sign, ground equipment, and jetways B7 and B9. The acft was subsequently destroyed by fire. Investigation revealed that during overhaul the high pressure fuel filter cover was improperly installed on the eng and the improper installation was not discovered drg company installation of the eng on the acft. This led to a massive fuelleak and the nacelle fire. The fire/explosion caused the loss of the eng panels, reducing the effectiveness of the fire suppression system and allowing other systems to be damaged. (For further information-see NTSB/AAR-89/02.)

Aircraft

Registration
N819PH
Reported as
de Havilland DHC-8
Category
Airplane
Serial number
061
Airframe hours
3,106
Engine
P&W PW120A, 2,100 horsepower, turbo prop
Damage
Destroyed
Fire
In-Flight
Flight
Part 121
Operator
Horizon Air
Registered owner
Horison Air, Inc
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · April 10, 1989
Destination
GEG · Spokane, WA
Flight plan
IFR
Airport
SER · Seattle-Tacoma Intl, runway 16L, 11,400 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
38
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
9,328 total · 981 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 8 knots
Visibility
7 statute miles
Lowest ceiling
2,800 ft overcast

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.