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Airworthiness directives › 2009-21-04

AD 2009-21-04 Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Model BR700-715A1-30, BR700-715B1-30, and BR700-715C1-30 Turbofan Engines

2009-12-03
2009-10-29
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Engine
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Applicability*9

This AD applies to Rolls-Royce Deutschland Ltd & Co KG model BR700-715A1-30, BR700-715B1-30, and BR700-715C1-30 turbofan engines. These engines are installed on, but not limited to, McDonnell Douglas 717-200 airplanes. Reason (d) Repair Scheme BRG3086 Issue 1 instructs the repair of the High-Pressure (HP) Compressor Front Drum Assembly Damping Grooves. This repair has an impact on the life of the HP Compressor Front Drum Assembly. We are issuing this AD to prevent failure of front HP compressor rotors, which could result in an uncontained engine failure and damage to the airplane.

Compliance

Remove the following HP Compressor drum assemblies from operation before reaching the life limit specified in Table 1 of this AD. Table 1—Flight Cycle Life by Part Number, Serial Number, and Mission for Affected HP Compressor Rotor Front Disc Assemblies Disc assembly part No. Serial No. A1-30 design B1-30 and C1-30 designs A1-30 Hawaiian C1-30 Tropical and derated tropical C1-30 Derated design BRR21918 1,107 6,600 4,500 4,500 3,800 6,600 BRR21918 1,120 6,800 4,700 4,700 4,000 6,800 BRR21918 1,122 7,000 4,900 4,900 4,100 7,000 BRR21918 1,144 7,300 5,000 5,000 4,200 7,300 BRR21918 1,154 6,800 4,700 4,700 4,000 6,800 BRR21918 1,163 6,800 4,700 4,700 4,000 6,800 BRR21918 1,166 6,500 4,500 4,500 3,800 6,500 BRR21918 1,194 6,900 4,800 4,800 4,000 6,900 BRR21918 1,217 7,000 4,900 4,900 4,100 7,000 BRR21918 1,232 7,200 5,000 5,000 4,200 7,200 BRR21918 1,255 7,300 5,100 5,100 4,300 7,300 BRR21918 1,259 7,500 5,200 5,200 4,400 7,500 BRR21918 1,271 7,300 5,100 5,100 4,300 7,300 BRR21918 1,292 7,300 5,100 5,100 4,300 7,300 Other FAA AD Provisions (f) Alternative Methods of Compliance (AMOCs): The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (g) Refer to MCAI Emergency Airworthiness Directive 2007-0050-E, dated February 26, 2007, and Rolls-Royce Deutschland Ltd & Co KG Alert Service Bulletin SB-BR700-72-A900437, Revision 2, dated September 17, 2009, for related information. Contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827 Blankenfelde-Mahlow, Germany; telephone 49 (0) 33-7086-1768; fax 49 (0) 33-7086-3356, or go to: http://www.rolls-royce.com/deutschland/en/default.htm, for a copy of this service information. (h) Contact Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail jason.yang@faa.gov ; telephone (781) 238-7747; fax (781) 238-7199, for more information about this AD. Issued in Burlington, Massachusetts, on October 1, 2009. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E9-25942 Filed 10-28-09; 8:45 am] BILLING CODE 4910-13-P

Required actions

Remove the following HP Compressor drum assemblies from operation before reaching the life limit specified in Table 1 of this AD. Table 1—Flight Cycle Life by Part Number, Serial Number, and Mission for Affected HP Compressor Rotor Front Disc Assemblies Disc assembly part No. Serial No. A1-30 design B1-30 and C1-30 designs A1-30 Hawaiian C1-30 Tropical and derated tropical C1-30 Derated design BRR21918 1,107 6,600 4,500 4,500 3,800 6,600 BRR21918 1,120 6,800 4,700 4,700 4,000 6,800 BRR21918 1,122 7,000 4,900 4,900 4,100 7,000 BRR21918 1,144 7,300 5,000 5,000 4,200 7,300 BRR21918 1,154 6,800 4,700 4,700 4,000 6,800 BRR21918 1,163 6,800 4,700 4,700 4,000 6,800 BRR21918 1,166 6,500 4,500 4,500 3,800 6,500 BRR21918 1,194 6,900 4,800 4,800 4,000 6,900 BRR21918 1,217 7,000 4,900 4,900 4,100 7,000 BRR21918 1,232 7,200 5,000 5,000 4,200 7,200 BRR21918 1,255 7,300 5,100 5,100 4,300 7,300 BRR21918 1,259 7,500 5,200 5,200 4,400 7,500 BRR21918 1,271 7,300 5,100 5,100 4,300 7,300 BRR21918 1,292 7,300 5,100 5,100 4,300 7,300 Other FAA AD Provisions (f) Alternative Methods of Compliance (AMOCs): The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (g) Refer to MCAI Emergency Airworthiness Directive 2007-0050-E, dated February 26, 2007, and Rolls-Royce Deutschland Ltd & Co KG Alert Service Bulletin SB-BR700-72-A900437, Revision 2, dated September 17, 2009, for related information. Contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, Dahlewitz, 15827 Blankenfelde-Mahlow, Germany; telephone 49 (0) 33-7086-1768; fax 49 (0) 33-7086-3356, or go to: http://www.rolls-royce.com/deutschland/en/default.htm, for a copy of this service information. (h) Contact Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail jason.yang@faa.gov ; telephone (781) 238-7747; fax (781) 238-7199, for more information about this AD. Issued in Burlington, Massachusetts, on October 1, 2009. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E9-25942 Filed 10-28-09; 8:45 am] BILLING CODE 4910-13-P

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