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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

Report to Wichita ACO/

FAA Small Airplane Directorate

Wichita, Kansas

July 23, 2009

ABS-ASF Proprietary Data 7/23/2009

1


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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


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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



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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



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ABS Member Survey

ABS-ASF Proprietary Data 7/23/2009


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Location of Cracks

ABS-ASF Proprietary Data 7/23/2009



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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


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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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