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At 2108 Eastern Standard Time on 09 August 2005, a Boeing Company 737-700 aircraft, registered VH-VBD, completed a scheduled flight from Melbourne, Victoria to Sydney, NSW. The pilot then reported that the aircraft had 'heavy' flight controls. An inspection by maintenance engineers revealed that the left lower rear elevator cable was incorrectly routed around a stiffener and that the stiffener and cable section had been damaged as a result of contact between them. The aircraft was withdrawn from service for repairs.

In the last week of July 2005, a contract maintenance organisation had replaced eight elevator control cable sections during a scheduled heavy aircraft maintenance check. The cables were replaced to comply with Boeing Company service bulletin 737-27-1254 revision 1.

While preparing the rear elevator control cables for removal, a cable end was not secured at the lower left rear elevator input quadrant, before removing the cable keeper. When the cable keeper was removed, the unsecured cable section slipped from sight. While recovering the cable, it was inadvertently misrouted around a fuselage stiffener. When the new cable was pulled into place it followed the same incorrect route around the stiffener.  This resulted in contact between the cable and the stiffener.

As a result of the occurrence, the contract maintenance organisation implemented a number of changes to improve maintenance planning and documentation.

Download Final Report
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General details
Date: 09 August 2005 Investigation status: Completed 
Time: 21:08  
Location   (show map):Sydney Aerodrome Investigation type: Occurrence Investigation 
State: New South Wales Occurrence type: Control - Other 
Release date: 05 February 2007 Occurrence class: Operational 
Report status: Final Occurrence category: Incident 
 Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: The Boeing Company 
Aircraft model: 737 
Aircraft registration: VH-VBD 
Type of operation: Air Transport High Capacity 
Damage to aircraft: Nil 
Departure point:Melbourne, VIC
Destination:Sydney, NSW
 
 
 
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Last update 16 February 2016