Aviation Accident Summary FTW85FA050

CLINT, TX, USA

Aircraft #1

N9336F

HUGHES 269B

Analysis

N9336F, CRASHED WHILE ON A TRAINING FLT. THE CERTIFIED FLT INSTRUCTOR & HIS STUDENT WERE KILLED. INVESTIGATION REVEALED THAT THE MAIN DRIVE SHAFT THRUST BEARING HAD FAILED. A SERVICE BULLETIN DATED 1968 MANDATED REPLACEMENT OF THE BEARING AT 300 HR TIME IN SERVICE INTERVAL.

 

Source: NTSB Aviation Accident Database

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