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Date: | Monday 4 December 2006 |
Time: | 04:59 |
Type: | ATR 72-202 |
Owner/operator: | Eurolot |
Registration: | SP-LFA |
MSN: | 246 |
Fatalities: | Fatalities: 0 / Occupants: 18 |
Aircraft damage: | Unknown |
Location: | EPBY -
Poland
|
Phase: | Initial climb |
Nature: | Passenger - Scheduled |
Departure airport: | EPBY |
Destination airport: | EPWA |
Confidence Rating: | Information is only available from news, social media or unofficial sources |
Narrative:Total Loss of A/C control and orientation in clouds shortly after departure at 3000ft following both AHRS(Attitude and Headning Reference System) failure. AHRS 2 already inoperative on the ground before departure(did not recognize by the crew) and AHRS 1 switched off by First Officer who incorrectly understood Captain order to reset Autopilot, so crew has lost all flight instruments except Standby Indicators. Bank varied from 44°R to 22°L when pitch varied from -28°down to +32°up and G load varied from +0,37g to +2,61g and speed reached 253,2kt. The crew finally resumed control of A/C when exit clouds at FL 200 and landed at destination uneventfully.
Reasons:
1.Poor CRM between CPT and FO,
2.Procedures on the ground(AHRS alignment) did not followed
3.Short rest time during night(4hr sleep only)
Sources:
Final Report of State Commission on Aircraft Accidents Investigation (SCAAI)
ftp://193.23.63.158/Komisja/rejestr_2006/2006_359_RK.pdf Visualization of the accident prepared by Polish SCAAI
https://www.youtube.com/watch?v=tLaWW2V4twA Revision history:
Date/time | Contributor | Updates |
26-Mar-2017 11:10 |
Slawek |
Added |
26-Mar-2017 14:51 |
Slawek |
Updated [Source] |