Naysa AT72 at Tenerife on Aug 4th 2013, turbulence injures 2 cabin crew
Last Update: June 26, 2015 / 14:17:55 GMT/Zulu time
Incident Facts
Date of incident
Aug 4, 2013
Classification
Accident
Cause
Turbulence
Airline
Naysa
Flight number
ZN-123
Departure
Las Palmas, Spain
Destination
Tenerife Sur Reina Sofia, Spain
Aircraft Registration
EC-GQF
Aircraft Type
ATR ATR-72-200
ICAO Type Designator
AT72
The French BEA reported in their weekly bulletin released on Aug 27th 2014, that Spanish Authorities have opened an investigation into the accident stating, the flight attendants were still in the aisle preparing the aircraft for landing when the aircraft lost about 2000 feet of altitude obviously due to turbulence. One flight attendant received serious, the other minor injuries.
On Jun 26th 2015 Spain's CIAIAC released their final report in Spanish concluding the probable cause of the accident was:
The accident likely occurred as result of sudden drop experienced by the aircraft when it passed through a zone of clear air turbulence. The absence of any atmospheric phenomen prevented any possible forcast of turbulent air.
The CIAIAC reported that the aircraft, flown by the captain and a first officer with another first officer on the flight deck, was descending through 8100 feet MSL when within 4 seconds the aircraft unexpectedly lost 134 feet of altitude (average rate of descent 2000fpm) resulting in vertical acceleration between -0.27G and +2.28G and the automatic disconnect of the autopilot and a master warning. Both flight attendants, still working in the galleys, fell resulting in a serious injury to one flight attendant and minor injuries to the other. The aircraft continued for a safe landing without further incident.
The CIAIAC reported that weather forecast reported possible moderate turbulence between surface level and 2000 feet between Gran Canaria and Tenerife Islands. The atmosphere between 5,000 and 10,000 feet MSL appeared stable with consistent winds of about 15 knots, above 10,000 feet there was again a layer of instable convective air associated with altocumulus cloud.
Metars:
GCTS 041000Z 21003KT 140V290 CAVOK 26/17 Q1018 NOSIG
GCTS 040930Z 21004KT 150V260 CAVOK 26/17 Q1018 NOSIG=
GCTS 040900Z VRB01KT CAVOK 25/17 Q1018 NOSIG=
Incident Facts
Date of incident
Aug 4, 2013
Classification
Accident
Cause
Turbulence
Airline
Naysa
Flight number
ZN-123
Departure
Las Palmas, Spain
Destination
Tenerife Sur Reina Sofia, Spain
Aircraft Registration
EC-GQF
Aircraft Type
ATR ATR-72-200
ICAO Type Designator
AT72
This article is published under license from Avherald.com. © of text by Avherald.com.
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