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ASN Wikibase Occurrence # 174854
Last updated: 23 January 2022
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Date:07-JUN-2013
Time:
Type:Silhouette image of generic B738 model; specific model in this crash may look slightly different
Boeing 737-838 (WL)
Owner/operator:Jetconnect
Registration: ZK-ZQG
MSN: 34190/3683
Fatalities:Fatalities: 0 / Occupants: 0
Other fatalities:0
Aircraft damage: Minor
Category:Incident
Location:Auckland International Airport (AKL) -   New Zealand
Phase: Standing
Nature:-
Departure airport:-
Destination airport:-
Investigating agency: TAIC New Zealand
Narrative:
On 7 June 2013 a Boeing 737-838 operated by Jetconnect Limited was undergoing scheduled maintenance at Auckland International Airport. During an inspection of the forward electronics and equipment compartment area under the flight deck, metal filings were found next to the stabiliser trim cable drum. On closer inspection a rag was found trapped under the stabiliser trim cable windings on the forward cable drum.

The rag had made the cable windings bulge outwards, which caused the cables to contact the cable guides, creating the metal filings and damaging the guides. The rag had increased the cable tension of the stabiliser trim system, which resulted in damage to a number of cable pulleys through which it was rigged. The control cables had also started to wear through contact with the steel bolts that held the cable guide spacers in place.

The New Zealand Transport Accident Investigation Commission (TAIC) found that it was highly likely the rag originated from the Qantas Sydney maintenance hangar, and that the presence of the rag trapped in the cable drum windings compromised the integrity of the aeroplane's stabiliser trim system manual control.

The key lesson learnt from the inquiry into this occurrence was that all personnel must take care not to leave anything behind inside an aircraft after completing maintenance or cleaning tasks, especially in areas or near systems critical to flight safety.

Sources:

https://taic.org.nz/inquiries?SkinSrc=[G_]skins/taicAviation/skin_aviation

Accident investigation:
cover
  
Investigating agency: TAIC New Zealand
Status: Investigation completed
Duration:
Download report: Final report
Other occurrences involving this aircraft

28 May 2021 VH-VYZ Qantas 0 Darwin International Airport, NT min


Images:

Photo of ZK-ZQG courtesy AirHistory.net


Brisbane - International (YBBN / BNE)
22 June 2012; (c) Peter Gates

Revision history:

Date/timeContributorUpdates
26-Mar-2015 21:22 harro Added

Corrections or additions? ... Edit this accident description