NONE · BOEING 747-400 · 1989-12-15 · ANCHORAGE, AK, USA
Event
NTSB number
ANC90FA020
Event ID
20001213X29893
Type
Accident
Date
1989-12-15
Location
ANCHORAGE, AK, USA
Coordinates
61.160522, -149.989074
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
245
Total aboard
245
Aircraft
Make
BOEING
Model
747-400
Registration
PHBFC
FAR Part
129
Engines
4
Damage
SUBS
Conditions
Light
DAYL
Weather
IMC
Probable cause
INADVERTENT ENCOUNTER WITH VOLCANIC ASH CLOUD, WHICH RESULTED IN DAMAGE FROM FOREIGN MATERIAL (FOREIGN OBJECT) AND SUBSEQUENT COMPRESSOR STALLING OF ALL ENGINES. A FACTOR RELATED TO THE ACCIDENT WAS: THE LACK OF AVAILABLE INFORMATION ABOUT THE ASH CLOUD TO ALL PERSONNEL INVOLVED.