AD 2005-18-12 Airworthiness Directives; Hartzell Propeller Inc. Propellers

Makes named: hartzell. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Hartzell propeller assemblies with hub model series specified in Table 1 of this AD. These propellers are installed on, but not limited to, the aircraft listed in Table 2 of this AD. Table 1.—List of Applicable Propeller Assemblies by Hub Model Series   HC-92W Hub Model Series BHC-92W Hub Model Series HC-92Z Hub Model Series BHC-92Z Hub Model Series HC-B3P Hub Model Series HC-B3R Hub Model Series HC-B3W Hub Model Series BHC-B3W Hub Model Series HA-B3Z Hub Model Series HC-B3Z Hub Model Series Table 2.—List of Airplanes That Might Use An Affected Propeller Assembly Aircraft manufacturer Aircraft model AERMACCHI (AERONAUTICA MACCHI) AM-3C AERO COMMANDER 560-F680, 680E, 680F, 680FL, 680FLP, 720 AEROSPATIALE (MORANE SAULNIER) 733 AEROSTAR AIRCRAFT CORP. 360 AEROTEK II, INC. (CALLAIR) B1A (CALLAIR) AIR & SPACE 18, 18A BEECH 18 SERIES   C45   35 SERIES   A65, 65, 65-80, 65-A80, 65-B80, 65-88   95, B95, B95A, D95A, E95   70   C18S [(C-45(A, F), UC-45(B, F), AT-7 (A, B, C), JRB-(1, 2, 3, 4), SNB-2(C)]   C18S, AT-11   C-45G,C-45H; TC-45G, H, J; RC-45J   D18S,E18S, G18S, H18; 3N, 3NM, 3TM   E50, F50, G50, H50, J50 BUSHMASTER AIRCRAFT CORP BUSHMASTER 2000 CESSNA 172   175, 175A   190, 195, A, B   421, 421A   A185E, A185F (SEAPLANES ONLY) CESSNA T50 DE HAVILLAND CANADA DHC-2 MKI DORNIER DO28D, DO28D-1 FOUND BROTHERS 100 FOUND BROTHERS FBA-2C GOODYEAR (LOCKHEED MARTIN) GZ20, GZ20A GRUMMAN (GULFSTREAM AERO.) G44, G44A GRUMMAN (MCKINNON) G21A HELIO H-250   H-295, HT-295 (U-10D)   H-395 (L-28A, U-10B)   H-500 ICA (ROMANIA) IAR-831 JOBMASTER   DGA-15P KWAD SUPER-V LAKE (REVO) LA-4 LOCKHEED 12A MESSERSCHMITT 207 MOONEY M20A NAVY N3N-3 NORD 3400, 3402 PACIFIC AEROSPACE (FLETCHER) FU-24, FU-24A PIAGGIO P-166B, C PILATUS PC-6/350; PC-6/350-H1, -H2 PIPER PA-23   PA-24   PA-25 PROCAER F15/B REVO (COLONIAL) C-2 SAAB 91D SAFIR SCHWEIZER (GRUMMAN) G-164 SIMMERING GRAZ PAUKER A.G SGP222 SPARTON 7W UTVA 66 WDL AVIATION (formerly WDL FLUGDIENST) An Airship WEATHERLY 201B, 201C, 620, 620A, 620C

You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Aircraft With Experimental Type Certificates (f) We recommend that you comply with the inspection requirements of this AD, if you have an aircraft with an experimental type certificate, and you have a propeller hub model listed in this AD installed on that aircraft. Inspection of the Propeller (g) If the time-since-overhaul (TSO) of the propeller is 10 years or fewer on the effective date of this AD, no further action is required. (h) If the propeller assembly was inspected using Hartzell Service Bulletin (SB) No. HC-SB-61-136, Revision I, dated April 25, 2003; SB No. 136, Revision H, dated March 12, 1993; or SB No. 136, Revision G, dated November 15, 1991; no further action is required. (i) If the TSO of the propeller assembly is more than 10 years on the effective date of this AD, or if the TSO is unknown, or if the propeller has not complied with Hartzell SB No. HC-SB-61-136, Revision I, dated April 25, 2003; or SB No. 136, Revision H, dated March 12, 1993; or SB No. 136, Revision G, dated November 15, 1991; perform the actions specified in Table 3 of this AD. Use the compliance times specified in Table 3 of this AD. Information on inspecting the propeller assembly for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance bore can be found in the applicable Hartzell maintenance manuals. Table 3.—Compliance Times for Onetime Inspection If the TSO of the propeller assembly on the effective date of this AD is . . . Then . . . Perform the the inspection . . . (1) More 25 years or the TSO is not known (a) Disassemble and clean the propeller assembly (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC-SB-61-136, Revision I, dated April 26, 2003 (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. Within 12 months after the effective date of this AD. (2) Twenty-one to 25 years (a) Disassemble and clean the propeller assembly (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC-SB-61-136, Revision I, dated April 26, 2003 (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. Within 18 months after the effective date of this AD. (3) Sixteen to 20 years (a) Disassemble and clean the propeller assembly (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC-SB-61-136, Revision I, dated April 26, 2003 (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. Within 24 months after the effective date of this AD. (4) Eleven to 15 years (a) Disassemble and clean the propeller assembly (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC-SB-61-136, Revision I, dated April 26, 2003 (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. Within 36 months after the effective date of this AD. Propeller Overhaul (j) Performing an overhaul of the propeller assembly after the effective date of this AD constitutes compliance with the requirements specified in this AD. The latest applicable Maintenance Manuals issued by Hartzell Propeller Inc. contain information on overhauling a propeller assembly. (k) The time-since-overhaul only changes if you overhaul the propeller assembly while performing the requirements specified in this AD. Reporting Requirements (l) Report inspection results to the Manager, Chicago Aircraft Certification Office, FAA, Small Airplane Directorate, 2300 East Devon Ave, Des Plaines, IL 60018, within 15 working days of the inspection. The Office of Management and Budget (OMB) approved the reporting requirements and assigned OMB control number 2120-0056. Alternative Methods of

This AD results from two events where a “Z-shank” blade failed and separated and the results of teardown inspections that detected corrosion in the blade bore. We are issuing this AD to detect corrosion and mechanical damage that can cause failure of a propeller, which could result in loss of control of the airplane.