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SB20, vicinity Sumburgh, UK 2014
Aircraft SAAB 2000 +
Aircraft damage Minor  +
Airport Sumburgh Airport +
Causal Factor Group Aircraft Operation  + , Aircraft Technical  +
Date of Occurence 15 December 2014  +
EPR MAYDAY declaration  +
Event Type Human Factors + , Loss of Control + , Weather +
Flight Airborne Yes  +
Flight Completed Yes  +
Flight Conditions IMC  +
Flight Diversion Destination Aberdeen Dyce Airport +
Flight Intended Destination Sumburgh Airport +
Flight Origin Aberdeen Dyce Airport +
GPWS Effective  +
GeneralSub Destination Diversion  + , Deficient Crew Knowledge-systems  + , PIC less than 500 hours in Command on Type  + , Deficient Crew Knowledge-automation  + , Copilot less than 500 hours on Type  +
HF Distraction  + , Inappropriate crew response (automatics)  + , Ineffective Monitoring  + , Procedural non compliance  + , Ineffective Monitoring - PIC as PF  + , AP/FD and/or ATHR status awareness  + , Spatial Disorientation  + , Manual Handling  +
ICAO Region EUR  +
ICAO Territory EG  +
Investigation Type Independent  +
LOC AP Status Awareness  + , Flight Control Error  + , Temporary Control Loss  + , Last Minute Collision Avoidance  + , Uncommanded AP disconnect  + , Environmental Factors  + , Extreme Pitch  +
Malfunction of Relevant Safety Net No  +
No damage or injury true  +
Operator Loganair +
Phase of Flight Missed Approach  +
Safety Recommendations Aircraft Airworthiness  +
Spot 59° 52' 38.5677", -1° 17' 30.7187"Latitude: 59.877379916667
Longitude: -1.2918663055556
  +
Synopsis On 15 December 2014, the Captain of a SaabOn 15 December 2014, the Captain of a Saab 2000 lost control of his serviceable aircraft after a lightning strike when he attempted to control the aircraft manually without first disconnecting the autopilot and despite the annunciation of a series of related alerts. The aircraft descended from 4,000 feet to 1,100 feet at up to 9,500 fpm and 80 knots above Vmo. A fortuitous transient data transmission fault caused autopilot disconnection making it possible to respond to EGPWS 'SINK RATE' and 'PULL UP' Warnings. The Investigation concluded that limitations on autopilot disconnection by pilot override were contrary to the type certification of most other transport aircraft.fication of most other transport aircraft.  +
TAWS Effective  +
Take off Commenced Yes  +
Time of Day Night  +
Type of Flight Public Transport (Passenger)  +
ValidationCode 1209  +
Vicinity true  +
WX Lightning Damage  +
Has queryThis property is a special property in this wiki. SB20, vicinity Sumburgh, UK 2014 + , SB20, vicinity Sumburgh, UK 2014 + , SB20, vicinity Sumburgh, UK 2014 + , SB20, vicinity Sumburgh, UK 2014 + , SB20, vicinity Sumburgh, UK 2014 +
Categories Accidents and Incidents  +
Modification dateThis property is a special property in this wiki. 7 December 2016 11:13:56  +
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