AD 2005-14-12 Airworthiness Directives; Hartzell Propeller Inc. Models HC-B3TN-2, HC-B3TN-3, HC-B3TN-5, HC-B3MN-3, HC-B4TN-3, HC-B4TN-5, HC-B4MN-5, HC-B4MP-3, HC-B4MP-5, and HC-B5MP-3 Propellers

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

This AD applies to Hartzell Propeller Inc. models HC-B3TN-2, HC-B3TN-3, HC-B3TN-5, HC-B3MN-3, HC-B4TN-3, HC-B4TN-5, HC-B4MN-5, HC-B4MP-3, HC-B4MP-5, and HC-B5MP-3 propellers installed with propeller mounting bolts, part number (P/N) B-3339. These propellers are installed on, but not limited to, the airplanes listed in the following Table 1: Table 1.—Airplanes That Propellers Are Installed on, But Not Limited To   ADVANCED AERO & STRUCTURES, INC. 450. AEROCOMMANDER: 680T, 680V, 681, 690, 690A, 690B, 690C, 695, 695A. AEROSPATIALE (SOCATA): TB-31 (Non U.S. type certificated (TC'd) product). AIR TRACTOR: AT-300, AT-301, AT-302, AT-400, AT-401, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503, AT-503A, AT-602, AT-802. AMERICAN AVIATION (GRUMMAN): G-164, G-164B, G-164B-15T, G-164B-34T, G-164D. AYRES: S-2R, S-2R-R1340, S-2R-R3S, S-2R-G1, S-2R-G5, S-2R-G6, S-2R-G10, S-2R-T6, S-2R-T11, S-2R-T15, S-2R-T34, S-2R-T-45, S-2R-T65, S-2RHG-T65. BAE 137. BEECH (Raytheon): (D, E)18 (C, S), (T, C)45(G, H, J), and E18S-9700 (with turbine conversions), 100, A100, A100A, B100, 1900C, 200(T), 200C(T), B200(T), B200C(T), 300, 300LW, B300, 65-90, -A90, -A90-1, -A90-2, -A90-4, B90, C90, C90A, E90, F90, H90, 99, 99A, A99, A99A, B99, C99, A36 and A36TC (with turbine conversions), 34C, T34C, T34C-1. CASA: C-212-CB, C-212-CC, C-212-CF-CF. CESSNA: 208, 208A, 208B, 402, 421B, 421C, 425, 441, P210N (with turbine conversions). DE HAVILLAND DH114. DE HAVILLAND CANADA: DHC-2, DHC-2 MKIII, DHC-3, DH6-1, DHC-6-100, DHC-6-200, DHC-6-300. DORNIER: 128-6, DO228-100, -101, -200, -201, -202, -212. DOUGLAS DC-3C (with turbine conversions). EMBRAER: EMB-110-P1, -P2, EMB-111, EMB-121A1, EMB-312 (Non U.S. TC'd product). ENAER T-35-TX (Non U.S. TC'd product). FAIRCHILD AIRCRAFT: SA226-AT, -T, -TB, -TC. FAIRCHILD-HILLER (PILATUS) AU-23 (Non U.S. TC'd product). FLUG & FAHRZEUGWERKE AG AS202/32TP (Non U.S. TC'd product). FUJI KM-2D (T-5) (Non U.S. TC'd product). GRUMMAN S-2 (with turbine conversions). GRUMMAN (GULFSTREAM AERO) G73 (with turbine conversions). GRUMMAN (MCKINNON) G21E, G (with turbine conversions). HAFEI AVIATION INDUSTRY CO. Y12, Y12IV (Non U.S. TC'd product). HELIO: HST-550, -550A. ICA (ROMANIA) IAR-825TP (Non U.S. TC'd product). ISRAEL AIRCRAFT INDUSTRIES: 101, 101B. KOREAN AEROSPACE INDUSTRIES KTX-IT (Non U.S. TC'd product). MAULE: M-7-420, MX (T)-7-420. MITSUBISHI: MU-2B, MU-2B-10, -15, -20, -25, -26, -30, -35, -36, -40, -60, MU-2B-25A, -26A, -35A, -36A. NORD 262 (FRAKES), and (NORD) Model 262(A) modified by Supplemental Type Certificate (STC) SA2369SW. NORMAN AEROPLANE: NA 6, NAC 6-65 (Non U.S. TC'd product). POLISH AVIATION (MIELEC): M-28, M-28B. PACIFIC AEROSPACE FU24(A)-950/-954. PACIFIC AEROSPACE (FLETCHER): FU-24 CRESCO 08-600, FU-24 CRESCO 08-750XL. PIAGGIO P-166 DL3. PILATUS: PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, PC-6/C1-H2, PC-7. PIPER: PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, PA-42, PA-42-720, PA-42—720R. PROP JETS INC. 400 (Non U.S. TC'd product). PZL MIELEC: M18, M18A, M18B, M27, PZL-106BT, PZL-130TE. ROCKWELL OV-10. SCHWEIZER (GRUMMAN) G-164, G-164A and G-164B (with turbine conversions). SHORT BROTHERS: SC7 SERIES 3, SD3-30 VARIANT 200, SD3-SHERPA VARIANT 200, SD3-60 VARIANT 200, SD3-60 SHERPA VARIANT 200. SIAI MARCHETTI (AERMACCHI): F.260C, F.260D, SM-1019, SF600 CANGURO. VALMET L-90TP (Non U.S. TC'd product). VULCANAIR (PARTENAVIA): AP68TP-300, AP68TP-600. WALLAROO 605 (Non U.S. TC'd product). WEATHERLY 620TP.

You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Visual Inspections and Torque Checks (f) Perform initial visual inspection and torque check of all eight mounting flange bolts when P/N B-3339 bolts from LFC manufacturing Lot No. 12 or Lot No. 56 are present, within 50 hours time-in-service (TIS) or 12 months after the effective date of the AD, whichever occurs first. For the location of bolt identification marks, see Figure 1 of Hartzell Propeller Inc. Alert Service Bulletin (ASB) No. HC-ASB-61-279, Revision 2, dated May 6, 2005. (g) Thereafter, for all airplanes except Aerospatiale (Nord) Model 262(A) airplanes modified by STC SA2369SW, perform repetitive torque checks on all eight mounting flange bolts when P/N B-3339 bolts from LFC Manufacturing Lot No. 12 or Lot No. 56 are present, within 120 hours TIS since-last-inspection. (h) Thereafter, for Aerospatiale (Nord) Model 262(A) airplanes modified by STC SA2369SW, perform repetitive torque checks on all eight mounting flange bolts when P/N B-3339 bolts from LFC Manufacturing Lot No. 12 or Lot No. 56 are present, within 100 hours TIS since-last-inspection. (i) If any bolt fails the torque check, replace all eight bolts with P/N B-3339 bolts that are not from LFC Manufacturing Lot No. 12 or Lot No. 56, or with FAA-approved equivalent part number bolts. (j) Perform the actions specified in paragraphs (f), (g), (h), and (i) of this AD, using paragraphs 3.A through 3.B.(5) of the Accomplishment Instructions of Hartzell Propeller Inc. ASB No. HC-ASB-61-279, Revision 2, dated May 6, 2005. Mandatory Terminating Action (k) As mandatory terminating action to the repetitive visual inspections and torque checks required by this AD, replace all P/N B-3339, LFC Manufacturing Lot No. 12 and Lot No. 56 bolts with P/N B-3339 bolts that are not from LFC Manufacturing Lot No. 12 or Lot No. 56, or with FAA-approved equivalent part number bolts, within 12 months after the effective date of this AD. Use paragraph 3.C of Accomplishment Instructions of Hartzell Propeller Inc. ASB No. HC-ASB-61-279, Revision 2, dated May 6, 2005, to do the bolt replacement. Alternative Methods of

This AD results from the discovery during routine propeller installation that a bolt from a certain manufacture lot did not properly absorb the installation torque. This AD also results from the discovery that other bolts of the same part number from a different certain manufacture lot had material surface pitting. We are issuing this AD to prevent propeller mounting bolt failures or improperly secured propellers, which could lead to separation of the propeller from the airplane.