23628 Federal Register / Vol. 74, No. 96 / Wednesday, May 20, 2009 / Rules and Regulations 

TABLE 1—PROPELLER MODELS APPLICABILITY—Continued 

Propeller model Airplane manufacturer Airplane model 

HC–B5MP–3(F) .................... THRUSH AIRCRAFT ...................................................... S–2R–T660. 

HC–B3TN–5FL, –5NL .......... TWIN COMMANDER ...................................................... 690A, 690B, 690C. 

HC–B3TF–7A ....................... VALMET .......................................................................... L–90TP. 

HC–B3TF–7A ....................... VULCANAIR (PARTENAVIA) ......................................... AP68TP–300, –600. 

Unsafe Condition 

(d) This AD results from two reports of 

failure of the bolts that attach the propeller 

blade counterweight slug, and separation of 

the counterweight slug which led to 

propeller vibration and damage to the 

propeller spinner. Investigation by Hartzell 

Propeller Inc. revealed that the bolts failed 

due to a bolt manufacturing defect. We are 

issuing this AD to prevent separation of the 

propeller blade counterweight slug, which 

could lead to injury and damage to the 

airplane. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed within 

50 flight hours after the effective date of this 

AD, unless the actions have already been 

done. 

Identification and Removal of All Propeller 

Blade Counterweight Slug Bolts, P/N B– 

3386–14H, LFC Manufacturing Lot 224, 

From Service, and Installation of 

Serviceable Bolts 

(f) Identify and remove all propeller blade 

counterweight slug bolts, P/N B–3386–14H, 

LFC manufacturing lot 224, from service, and 

install serviceable bolts. 

(g) Use paragraphs 3.A.(1) through 

3.A.(4)(b)5 of the Accomplishment 

Instructions of Hartzell Propeller Inc. ASB 

No. HC–ASB–61–313, Revision 2, dated 

March 27, 2009, to do the identification, 

removals from service, and installations. 

Definition 

(h) For the purpose of this AD, a 

serviceable propeller blade counterweight 

slug bolt is a P/N B–3386–14H bolt with an 

LFC manufacturing lot other than lot 224. 

Alternative Methods of Compliance 

(i) The Manager, Chicago Aircraft 

Certification Office, has the authority to 

approve alternative methods of compliance 

for this AD if requested using the procedures 

found in 14 CFR 39.19. 

Related Information 

(j) Contact Tim Smyth, Senior Aerospace 

Engineer, Chicago Aircraft Certification 

Office, FAA, Small Airplane Directorate, 

2300 East Devon Avenue, Des Plaines, IL 

60018–4696; e-mail: timothy.smyth@faa.gov; 

telephone (847) 294–8110; fax (847) 294– 

7132, for more information about this AD. 

Material Incorporated by Reference 

(k) You must use Hartzell Propeller Inc. 

ASB No. HC–ASB–61–313, Revision 2, dated 

March 27, 2009, to perform the actions 

required by this AD. The Director of the 

Federal Register approved the incorporation 

by reference of this service bulletin in 

accordance with 5 U.S.C. 552(a) and 1 CFR 

part 51. Contact Hartzell Propeller Inc. 

Technical Publications Department, One 

Propeller Place, Piqua, OH 45356; telephone 

(937) 778–4200; fax (937) 778–4391, for a 

copy of this service information. You may 

review copies at the FAA, New England 

Region, 12 New England Executive Park, 

Burlington, MA; or at the National Archives 

and Records Administration (NARA). For 

information on the availability of this 

material at NARA, call 202–741–6030, or go 

to: http://www.archives.gov/federal-register/ 

cfr/ibr-locations.html. 

Issued in Burlington, Massachusetts, on 

May 8, 2009. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–11518 Filed 5–19–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 117 

[USCG–2009–0228] 

Drawbridge Operating Regulations; 

Back Bay of Biloxi, Biloxi, MS 

AGENCY: Coast Guard, DHS. 

ACTION: Notice canceling temporary 

deviation from regulations. 

SUMMARY: The Coast Guard is canceling 

the temporary deviation concerning the 

operation of the I–110 bascule span 

bridge across the Back Bay of Biloxi, 

mile 3.0, in Biloxi, Harrison County, 

Mississippi. The deviation allowed the 

bridge to remain closed to navigation for 

two (2) two-hour periods daily to 

facilitate the movement of vehicular 

traffic. 

DATES: The temporary deviation 

published on April 13, 2009 (74 FR 

16781) is cancelled as of May 20, 2009. 

ADDRESSES: The docket for this 

cancelled deviation is available for 

inspection or copying at the Docket 

Management Facility (M–30), U.S. 

Department of Transportation, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. You may also 

find this docket on the Internet by going 

to http://www.regulations.gov, selecting 

the Advanced Docket Search option on 

the right side of the screen, inserting 

USCG–2009–0228 in the Docket ID box, 

pressing Enter, and then clicking on the 

item in the Docket ID column. 

FOR FURTHER INFORMATION CONTACT: 

David Frank, Bridge Administration 

Branch, telephone (504) 671–2128. 

Background and Purpose 

On April 13, 2009, we published a 

temporary deviation entitled 

‘‘Drawbridge Operating Regulations; 

Back Bay of Biloxi, Biloxi, Mississippi’’ 

in the Federal Register (74 FR 16781). 

The temporary deviation concerned 

allowing the I–110 bridge across the 

Back Bay of Biloxi, mile 3.0, in Biloxi, 

Harrison County, Mississippi to remain 

closed to navigation for two (2) twohour periods daily to facilitate the 

movement of vehicular traffic. This 

deviation from the operating regulations 

was authorized under 33 CFR 117.35. 

Cancellation 

The deviation was established to 

facilitate the flow of increased vehicular 

traffic on the I–110 bridge caused by the 

allision to the Popps Ferry Rd. bridge. 

The Popps Ferry Rd. bridge was 

damaged in an allision on March 20, 

2009 when two sections of the roadway 

were destroyed. The bridge was 

returned to service on April 25, 2009, 

thus reducing the vehicular traffic on 

the I–110 bridge during the morning and 

afternoon rush hours. 

Dated: April 29, 2009. 

David M. Frank, 

Bridge Administrator. 

[FR Doc. E9–11689 Filed 5–19–09; 8:45 am] 

BILLING CODE 4910–15–P