Oct2017: possibly serious incident with KC-390 jet prototype

[Stratofreighter]

http://www.defesanet.com.br/kc390/notic ... o-Extremo/
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https://translate.google.com/translate? ... edit-text=

http://www.aereo.jor.br/2017/10/19/inci ... 90-pt-znf/
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https://translate.google.com/translate? ... edit-text=

...and certainly the page below provides information from some sources. Rumours or real

http://www.cavok.com.br/blog/incidente- ... tificacao/
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https://translate.google.com/translate? ... edit-text=

If PT-ZNF is not flying again this October month -or end November at the latest
then "overstress-rumours" may have been based on reality....

[Stratofreighter]

https://www.flightglobal.com/news/artic ... ra-446533/

07 March, 2018

One of Embraer’s KC-390 prototypes returned to flight over Brazil on 2 March 2018,
after being grounded for several months
due to unexpected altitude loss during a stall test flight conducted last October 2017,
several flight tracking websites report.

Embraer confirms that the tactical transport involved in last year's mishap has resumed testing.
The company’s first production aircraft is expected to enter service with the Brazilian air force’s 11th Wing in Rio de Janeiro later this year:
a schedule that Embraer says will not be delayed by the prototype’s stall test incident and subsequent months of unavailability.

The company has two KC-390 prototypes,
with the stall test issue having grounded aircraft 001 (PT-ZNF).
The other example continued to fly and conduct tests, Embraer says.

During the testing incident,
the twinjet “experienced an event beyond the planned limit”
while conducting a simulated icing test,
which took the aircraft beyond its airspeed and load factor operating limitations,
the company said last November.

The crew was forced to apply recovery procedures
and return the aircraft to Embraer’s test base at Gavião Peixoto.

Embraer says the aircraft showed no damage to its primary structure,
but some external fairings and access hatches had to be replaced before it could resume testing.

The company confirms that aircraft 001's performance envelope has not been changed as a result of the incident.

https://www.flightglobal.com/news/artic ... ra-446533/