**Regulatory Evaluation**

Docket No. FAA

- 2011

- 0946 Directorate Identifier: 2011

-NE

- 0 2

- AD If you make changes to the values in the table below, you must ensure the totals update accordingly. If they do not, click (or Tab) into an d then out of the changed cell

. **Estimated Costs:** 

Action (e.g., Inspection, replacement) Costs per **Product** (e.g., aircraft, engine,

propeller, appliance) Work

- h ours (include access, testing, and close

- up) Labor

cost ( @ $8 5 /h our) Part s Cost Total Costs ( labor + parts) Number of

**U.S. Registered**  **Products** Total Cost

for U

. S

. Fleet

Remove fan blades 6 .0 $ 510.00 $ 47,830 $48,340.0 0 16 $773,440.00 0.0 $ 0.00 $0 $ 0.00 $ 0.00 0.0 $ 0.00 $ 

### 0 $ 0.00 $ 0.00

$ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 The known number of products in compliance: Total Costs of compliance for U.S. fleet: $773,440 Costs covered under warranty ( if known ) $ **Special considerations for Economic Analysis** (Use this field to explain anything in the Estimated Costs table that was assumed or migh t not be obvious. This field can also be used to explain warranty costs) : 

### For turbochargers with no more than 50 hours time in service since new or overhauled with the part numbers and serial numbers listed in Hartzell Engine Technologies Service Bulletin SB40A , the company will provide warranty

and the following economic assistance: Id entification : up to 1 hour labor (up to $75 maximum) Removal and Installation, if necessary : up to 4 hours labor (up to $300 maximum) Disassembly , Cleaning and Reassembly :

### Within North America

- for units sent to HET there will be no charge for this work and

unit will be returned shipping pre

- paid b y the same method as received. Outside North America

– for units sent to HET there will be no charge for this work and will be returned shipping pre

- paid, less any applicable duties, by

the same method as received. As an alternative, HET will provide a labor allowance of 3 hours labor (up to US $225 maximum) for units sent to the nearest facility listed in Hartzell Eng ine Technologies LLC Service Bulletin SB40A

. **Executive Order 12866:** Could the AD be considered a “significant regulatory action”? YES * NO

* Explanation: **DOT Regulatory Policies and Procedures:** Is the AD significant? YES * NO

* Explanation: **Regulatory Flexib ility Act:**  Will the AD have a significant economic impact on a substantial number of small entities? E xplain for either a Yes or No answer. YES NO Explanation: 

### Small Airplane Directorate data indicates aircraft likel y to have the formentioned turbochargers are f lown (on average) more than 50 hours per year. Hartzell Engine Technologies stated the turbocharger center housing on the Cirrus SR22T failed approximately

9 months after it had been manufactured and in less than 5 hours of service. If it is conservative ly

assumed that turbocharger center housing s manufactured and overhauled in the last two years have not accumulated more than 50 hours of service, then, according to Hartzell Engine Technologies manufacturing data , less than 10 percent of the candidate turbocharger population (a quantity of 264 out of 2761) would require this AD's action. In other words, the chance that each aircraft with the forementioned turbochargers would be subjected to this AD's actions is less than 1 in 10

- minimizing the impact t o an insubstantial number of small entities. **Intrastate Aviation in Alaska:** This AD could affect intrastate aviation in Alaska. Is it appropriate to include specific requirements for aircraft operated in Alaska where aviation might be the only mode of transportation? YES * NO


### * Explanation 

### : Although this AD could affect intrastate avaition in Alaska, it is not appropriate to include specific requirements for aircraft operated in Alaska because the safety concerns outweigh the benefits of making transportation available . In other words,

### this AD concerns a hazardous safety effect and Alaskan aviation needs to be subjected to

the formentioned action to mitigate the risk.