# SDR CA050829001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2005
- Submitted: September 1, 2005
- Operation: General aviation
- Make and model: Beech A100
- Registry model: [Beech A100](https://openairdocs.org/model/beech-a100) (OpenAirDocs)
- Aircraft time: 20,399 hours
- Engine: Pwa PT6A34
- Propeller: Hartzl HCB4TN3
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Doubler
- Part number: 5042002847
- Condition: Cracked
- Location: Frame
- Part time: 21,356 hours, 26,415 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA050829001

## Discrepancy

(CAN) DURING THE CONTINUING AIRWORTHINESS STRUCTURAL INSPECTION A CRACK WAS FOUND IN THE FLOOR LEVEL DOUBLER FOR THE LT FRAME AT FUSELAGE STATION 207.00, THE CRACK MOVED LATERALLY ACROSS THE DOUBLER FROM THE IB SIDE THOUGH 2 RIVET HOLES AND A BEND. THE PROBABLE CAUSE IS THAT THE DOUBLER HAD A PILOT HOLE THAT WAS DIRECTLY ADJACENT TO A RIVET HOLE WITH NO EDGE DISTANCE. THE CRACK WAS ABOUT 3.5 INCHES LONG.

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