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AD/ATR 42/23 - Rear Pressure Bulkhead Area - Electrical Wire Chafing
Avions de Transport Regional ATR 42 SeriAvions de Transport Regional ATR 42 Series Aeroplanes
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Avions de Transport Regional ATR 42 Series Aeroplanes
| AD/ATR 42/23 | Rear Pressure Bulkhead Area - ElectricalWire Chafing | 6/2008 DM |
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| Applicability: | ATR 42 model aeroplanes, all serial numbers, as follows |
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| ATR 42-200, 42-300 and 42-320 that have embodied ATR modification (Mod) 00639, except aircraft which have received ATR Service Bulletin (SB)ATR42-92-0018 whilst in service. | |
| ATR 42-400 and 42-500, except aeroplanes that have embodied ATR Mod 05780 during production or ATR SB ATR42-92-0018 whilst in service. | |
| Note 1: Mod 00639 has been embodied on production aircraft Manufacturer Serial Number (MSN) 109 and MSN 113 and was factory-incorporated from MSN 116. | |
| Note 2: Mod 05780 is now factory-incorporated on ATR 42-500 from MSN 667. | |
| Requirement: | 1. Perform a one-time inspection of the electrical routing in the rear baggage zone in accordance with the accomplishment instructions of SB ATR42-92-0015, dated 11 February 2008. |
| 2. If ANY damage is found during the Requirement 1 inspection (chafing and/or contact between bundles of cables and the airframe structure): | |
| a. Contact and report the finding(s) to ATR (by means of the accomplishment form enclosed in SB ATR42-92-0015) to obtain an approved repair solution and perform the repair in accordance with the ATR instructions, and | |
| b. Modify the electrical routing and wire bundle protection in accordance with the accomplishment instruction of SB ATR42-92-0018, dated 11 February 2008. | |
| 3. If damage is not found during the Requirement 1 inspection: | |
| a. Report to ATR the result of inspection by using the form enclosed in SB ATR42-92-0015, and | |
| b. Modify the electrical routing and wire bundle protection in accordance with the accomplishment instruction of SB ATR42-92-0018. |
| The use of later revisions of SB ATR42-92-0015 and SB ATR42-92-0018 approved by the European Aviation Safety Agency (EASA) is acceptable for compliance with the requirements of this Directive. |
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