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The number 3 engine began vibrating on climb through FL340. The vibration could be felt through the airframe. The N1 was reducing and fluctuating and the fuel flow was reducing. The engine was shut down and the aircraft returned to Sydney. Maintenance checks found water in the engine fuel control unit. When this was drained the engine operated satisfactorily. The source of the water could not be determined.
Download Final Report
[ Download PDF: 10KB]
General details
Date: 18 December 1992 Investigation status: Completed 
 Investigation type: Occurrence Investigation 
 Occurrence type: Abnormal engine indications 
Release date: 26 May 1993 Occurrence class: Technical 
Report status: Final Occurrence category: Incident 
Aircraft details
Aircraft manufacturer: The Boeing Company 
Aircraft model: 727-77 
Aircraft registration: VH-TBS 
Sector: Jet 
Damage to aircraft: Nil 
Departure point:Sydney
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Last update 23 July 2015