Incident ATR 72-202 SP-LFA, 04 Dec 2006
ASN logo
ASN Wikibase Occurrence # 194406
 
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:04-DEC-2006
Time:04:59
Type:Silhouette image of generic AT72 model; specific model in this crash may look slightly different    
ATR 72-202
Owner/operator:Eurolot
Registration: SP-LFA
MSN: 246
Fatalities:Fatalities: 0 / Occupants: 18
Other fatalities:0
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/timeContributorUpdates
26-Mar-2017 11:10 Slawek Added
26-Mar-2017 14:51 Slawek Updated [Source]

Corrections or additions? ... Edit this accident description

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2023 Flight Safety Foundation

701 N. Fairfax St., Ste. 250
Alexandria, Virginia 22314
www.FlightSafety.org