389037
The prototype was re-engined with Gnome-Rhône 14M radial engine s before it made its maiden flight at Avord on 21 September 1937 .
 Avord
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Avord