AD 2009-04-01 Airworthiness Directives; Wytwornia Sprzetu Komunikacyjnego “PZL-Rzeszow” S.A. PZL-10W Turboshaft Engines

This AD applies to Wytwornia Sprzetu Komunikacyjnego “PZL-Rzeszow” S.A. (WSK) PZL-10W turboshaft engines, with the following serial numbers of ALRP-5 fuel metering pumps installed. These engines are installed on, but not limited to, PZL Swidnik W3/W3A helicopters. Affected ALRP-5 Fuel Metering Pump Serial Numbers       PB 99040002 PB 94030003 PA 07927B PB 98050002 PB 93120004 PB 96080005 PA 058701B PA 05913B PB 07010001 PB 99020003 PB 95020005 PB 07010002 PB 97010002 PB 97030004 PA 04891B PA 02914B PB 97060001 PA 11892B PA 11881B PB 99040001 PA 10903B PB 94020003 PB 95050003 PA 02915B PB 93050006 PB 94110002 PA 02903B PA 06918B PB 93080005 PA 06891B PA 07912B PB 93120002 PB 97050002 PB 02935 PB 97070003 PA 07882B Reason (d) European Aviation Safety Agency (EASA) AD No. 2007-0153-E, dated May 25, 2007, states: The review of manufacturing process and service experience has shown that the ALRP-5 fuel metering pump units released to service between May 2006 and April 2007 can be vulnerable for seizing. This vulnerability is demonstrated by occurrence of aluminum and bronze chips at the filter. This condition, if not corrected might lead to seizing of the pump and engine RPM decrease. We are issuing this AD to prevent low-time pump seizure, loss of engine fuel flow and engine power, possibly leading to an autorotation landing.

Unless already done, do the following visual inspections using paragraph (f) of this AD. Initial Inspection (1) Visually inspect the fuel metering pump fine filter before further flight. Fuel Metering Pumps With More Than 30 Hours Time-In-Service (2) For fuel metering pumps with more than 30 hours time-in-service (TIS) on the effective date of this AD, re-inspect the filter within 5 hours TIS after reaching 50 hours TIS since the initial inspection specified in paragraph (e)(1) of this AD. Fuel Metering Pumps With 30 or Fewer Hours Time-In-Service (3) For fuel metering pumps with 30 or fewer hours TIS on the effective date of this AD, re-inspect the filter after each flight day, not to exceed 4 hours TIS between each inspection, until reaching 30 hours TIS. (4) Re-inspect the filter within 5 hours TIS after reaching 50 hours TIS since the last inspection specified in paragraph (e)(3) of this AD. If Filter Fails Inspection (5) If the filter fails any inspection, remove the fuel metering pump from service and install a serviceable fuel metering pump. (f) Visually inspect the pump fine filter as follows: (1) Remove the fine filter from the ALRP-5 pump and visually inspect it. Information on removing the fine filter can be found in PZL-10W Maintenance Manual, Document No. 19.0.400. (2) If there is no evidence of any metal chips on the filter, wash and reinstall the filter, and vent the fuel system. (3) If metal chips are found on the filter, evaluate the chips as follows: (i) Aluminum or bronze chips are not allowed. (ii) Metallic particles seen as reflection of light are allowable in maximum quantity of 10 per filter segment (row) but not more than 30 for the entire filter. Definition (g) For the purpose of this AD, a serviceable fuel metering pump is one that does not have a serial number listed in this AD, is one that has successfully completed the inspections required by this AD, or is one listed in this AD that has been repaired since being listed in WSK Obligatory Bulletin No. E-19W123/DOA/2007, dated May 2007. Alternative Methods of Compliance (AMOCs) (h) 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 (i) Refer to MCAI EASA Airworthiness Directive 2007-0153-E, dated May 25, 2007, for related information. (j) WSK Obligatory Bulletin No. E-19W123/DOA/2007, dated May 2007, and PZL-10W Maintenance Manual, Document No. 19.0.400, pertain to the subject of this AD. Contact WSK “PZL-Rzeszow” S.A., ul. Hetmanska 120, 35-078 Rzeszow, Poland, telephone: 011 48 17 854-62-00 or 854-61-00, for a copy of this service information. (k) Contact Richard Woldan, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: richard.woldan@faa.gov; telephone (781) 238-7136; fax (781) 238-7199, for more information about this AD. Issued in Burlington, Massachusetts, on February 2, 2009. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E9-3044 Filed 2-13-09; 8:45 am] BILLING CODE 4910-13-P

Unless already done, do the following visual inspections using paragraph (f) of this AD. Initial Inspection (1) Visually inspect the fuel metering pump fine filter before further flight. Fuel Metering Pumps With More Than 30 Hours Time-In-Service (2) For fuel metering pumps with more than 30 hours time-in-service (TIS) on the effective date of this AD, re-inspect the filter within 5 hours TIS after reaching 50 hours TIS since the initial inspection specified in paragraph (e)(1) of this AD. Fuel Metering Pumps With 30 or Fewer Hours Time-In-Service (3) For fuel metering pumps with 30 or fewer hours TIS on the effective date of this AD, re-inspect the filter after each flight day, not to exceed 4 hours TIS between each inspection, until reaching 30 hours TIS. (4) Re-inspect the filter within 5 hours TIS after reaching 50 hours TIS since the last inspection specified in paragraph (e)(3) of this AD. If Filter Fails Inspection (5) If the filter fails any inspection, remove the fuel metering pump from service and install a serviceable fuel metering pump. (f) Visually inspect the pump fine filter as follows: (1) Remove the fine filter from the ALRP-5 pump and visually inspect it. Information on removing the fine filter can be found in PZL-10W Maintenance Manual, Document No. 19.0.400. (2) If there is no evidence of any metal chips on the filter, wash and reinstall the filter, and vent the fuel system. (3) If metal chips are found on the filter, evaluate the chips as follows: (i) Aluminum or bronze chips are not allowed. (ii) Metallic particles seen as reflection of light are allowable in maximum quantity of 10 per filter segment (row) but not more than 30 for the entire filter. Definition (g) For the purpose of this AD, a serviceable fuel metering pump is one that does not have a serial number listed in this AD, is one that has successfully completed the inspections required by this AD, or is one listed in this AD that has been repaired since being listed in WSK Obligatory Bulletin No. E-19W123/DOA/2007, dated May 2007. Alternative Methods of Compliance (AMOCs) (h) 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 (i) Refer to MCAI EASA Airworthiness Directive 2007-0153-E, dated May 25, 2007, for related information. (j) WSK Obligatory Bulletin No. E-19W123/DOA/2007, dated May 2007, and PZL-10W Maintenance Manual, Document No. 19.0.400, pertain to the subject of this AD. Contact WSK “PZL-Rzeszow” S.A., ul. Hetmanska 120, 35-078 Rzeszow, Poland, telephone: 011 48 17 854-62-00 or 854-61-00, for a copy of this service information. (k) Contact Richard Woldan, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: richard.woldan@faa.gov; telephone (781) 238-7136; fax (781) 238-7199, for more information about this AD. Issued in Burlington, Massachusetts, on February 2, 2009. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E9-3044 Filed 2-13-09; 8:45 am] BILLING CODE 4910-13-P