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ABS Spar Web Investigation

ABS Spar Web Investigation. Report to Wichita ACO/ FAA Small Airplane Directorate Wichita, Kansas July 23, 2009. 1. Mandatory Service Bulletins. MSB 2269 issued August 1989 Barons (except 58P and 58TC) Travel Airs MSB 2360 issued November 1990 Bonanzas H35 and later

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ABS Spar Web Investigation

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  1. ABS Spar Web Investigation Report to Wichita ACO/ FAA Small Airplane Directorate Wichita, Kansas July 23, 2009 ABS-ASF Proprietary Data 7/23/2009 1

  2. Mandatory Service Bulletins MSB 2269 issued August 1989 Barons (except 58P and 58TC) Travel Airs MSB 2360 issued November 1990 Bonanzas H35 and later All Model 33 Debonairs/Bonanzas All Model 36 Bonanzas Required inspection and repairs ABS-ASF Proprietary Data 7/23/2009

  3. Airworthiness Directives AD 90-08-14 Incorporates MSB 2269 (multiengine) AD 92-08-07 Incorporates MSB 2360 (singe engine) One time inspection Required reporting to Beech No record of any data AD 95-04-03 Repetitive inspections No reporting ABS-ASF Proprietary Data 7/23/2009

  4. ABS-ASF Proprietary Data 7/23/2009 4

  5. Current AD Inspection Initial inspection @1500TT No cracks: every 500 hours thereafter Small cracks: every 200 hours thereafter ABS-ASF Proprietary Data 7/23/2009

  6. ABS-ASF Proprietary Data 7/23/2009 6

  7. ABS Member Survey ABS-ASF Proprietary Data 7/23/2009

  8. Location of Cracks ABS-ASF Proprietary Data 7/23/2009

  9. ABS-ASF Proprietary Data 7/23/2009

  10. FAA No-Crack Policy The Old Policy For cracks found in structural components some ADs have allowed continued operational flight if the cracks are smaller than a certain size. Inspection requirements will be more stringent for known cracks. The New Policy Continued operational flight with known cracks in primary structural components should not be allowed. Small Airplane Directorate will adhere to this basic policy. ABS-ASF Proprietary Data 7/23/2009

  11. ABS Position Known issue for two decades Current inspection process has ensured ongoing safety No history of in-flight failure ABS asked FAA for time to investigate ABS-ASF Proprietary Data 7/23/2009

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