CTHIn ForceLegislation
AD/DO 228/12 Amdt 1 - De-bonding of Surface Protection on Rudders and Elevators
Dornier 228 Series AeroplanesDornier 228 Series Aeroplanes
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Dornier 228 Series Aeroplanes
| AD/DO 228/12 Amdt 1 | De-bonding of Surface Protectionon Rudders and Elevators | 3/2009 |
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| Applicability: | Model 228-100, -101, -200, -201, -202, -202K, and -212 aircraft; on which the rudder and/or elevator have been replaced or repaired at Fairchild Dornier or RUAG between the year 2000 and 2005. Affected part numbers and serial numbers are listed on page 7 of RUAG Service Bulletin SB-228-270R1. |
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| Requirement: | 1. A detailed visual inspection must be performed on some accessible areas of the inner structure of the rudder and elevator for signs of corrosion, de-bonded primer (yellow-green) and any other deviation of surface protection; in accordance with RUAG Service Bulletin SB-228-270R1, or later LBA/EASA approved revision.2. Any investigation results that indicate corrosion is beyond the acceptable level and/or de-bonded primer is evident, must be reported to the manufacturer for further assessment.3. If necessary, repair the affected parts in accordance with the manufacturer’s repair instruction.Note: LBA AD D-2007-350R1 refers. |
| Compliance: | 1. Within 2 months after 12 March 2009, unless already accomplished.2. Immediately after such findings have been established.3. In accordance with instructions from the manufacturer. |
| This Amendment becomes effective on 12 March 2009. | |
| Background: | The manufacturer reported findings of missing primer on the internal of the elevator and rudder of aircraft S/N 8200. Investigation performed by RUAG showed that the paint removal procedure for the rudder and elevator was changed from a paint stripping with brush and scraper to a procedure where the parts were submerged in a tank filled with hot liquid stripper. This paint stripping process change was not communicated to and not approved by the TC-Holder. |
| Amendment 1 is issued in response to a revision of the related LBA AD and RUAG SB, which introduce changes to applicability and accomplishment instructions. |
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David Punshon
Delegate of the Civil Aviation Safety Authority
23 January 2009