DAMAGE ASSESSMENT ON A WING OF A BRITTEN-NORMAN BN-2B-26 AT ACC COLUMBIA

ACC COLUMBIA offers support for sheet metal projects, ranging from minor modifications up to huge structural repairs on virtually all types and makes of aircraft at their facilities in Wegberg and Mitterskirchen. Whether you are in need of repairs including documentation and EASA Form One reporting, modifications, damage appraisals, service bulletins or airworthiness directives, the ACC COLUMBIA – Support team is at your service.

Currently, ACC COLUMBIA - Support is performing an extensive damage assessment on the wing of a Britten-Norman BN-2B-26. The aircraft actually is located in a maintenance facility on the coast of Northern Germany. During an inspection, suspected corrosion was revealed. In order to check potential corrosion and possible further damages, the 14.92 m long wing was transported to the Wegberg facility by flat-bed vehicle, was carefully unloaded and taken into our workshop.

First, the wing is opened by disassembling all upper skins to allow the necessary damage assessment. The main spar is then subjected to a detailed inspection regarding corrosion and cracks. Due to many take-offs and landings on the coast in connection with island hopping, the main spar is exposed to extraordinary stress, therefore, you will often find delamination on some of the 4 laminated spar caps with a total length of 13.5 m reaching nearly over the whole wing of the BrittenNorman BN-SB-26. Our specialist evaluates which kind of repair is useful, whether a manufacturer structural repair is necessary and economically worthwhile.

In case any damages are found, the wing will be repaired in the Wegberg facility. ACC COLUMBIA Support is able to disassemble the wing assy and to change the damaged cap, transfer the rivet pattern from the damaged one to the spare part and reassemble it to the wing. After reinstallation, the wing will again be in an airworthiness condition and the repair will be certified with an EASA Form One.

In all branches of the ACC COLUMBIA network, the aim is always to perform high quality repair and modification work by highly trained and motivated personnel taking into consideration all safety standards to meet our customers’ demands.

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