Airworthiness directives › 2009-10-14
AD 2009-10-14 Airworthiness Directives; Hartzell Propeller Inc. Steel Hub Turbine Propellers
Makes named: hartzell. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the Hartzell Propeller Inc. steel hub turbine propellers listed in Table 1 of this AD, with any counterweight slug attachment bolts, part number (P/N) B-3386-14H, LFC manufacturing lot 224, installed. These propellers are installed on, but not limited to, the airplanes listed in Table 1 of this AD. Table 1—Propeller Models Applicability Propeller model Airplane manufacturer Airplane model HC-B3TN-5K AERO COMMANDER 680T, 680V, 681. HC-B3TN-5DL, -5FL, -5NL AERO COMMANDER 690(A, B, C), 695A. HC-A3MVF-7B AEROSPACE TECHNOLOGIES N22B, N24A, N22S, N22C. HC-A3VF-7, -7B AEROSPACE TECHNOLOGIES N22B, N24A, N22S, N22C. HC-B5MP-3A, -3C AIR TRACTOR AT-502A. HC-B5MP-3C AIR TRACTOR AT-503, 602. HC-B5MA-3D(T) AIR TRACTOR AT-802. HC-B5MP-3F AIR TRACTOR AT-802. HC-B5MA-5A ANTONOV AN-38. HC-B3TN-5V AYRES S-2R. HC-B4TN-5NL, -5PL AYRES S-2R(-1340), -G(5, 6, 10), -R3S, -R1820, -T(6, 11, 15, 34, 45, 65). HC-B5MP-3C AYRES S-2R(HG)-T65. HC-B3TN-3AE AYRES S-2R-T( ). HC-B3TN-5K BAE (JETSTREAM) 137. HC-B4MP-3A BEECH 1900C. HC-B4MP-3B BEECH 300, 300LW. HC-B3TF-7A BEECH A36, A36TC. HC-B4MP-3C BEECH B300, B300C. HC-B4MN-5AL CASA C-212-CC, -CF. HC-B3TF-7A CESSNA 206. HC-B3TF-7 CESSNA 402. HC-B3MN-3 CESSNA 208, 208A, 208B. HC-B3TN-3AEY, -3AF CESSNA 208, 208A, 208B. HC-B3TF-7A CESSNA P210N. HC-B3TN-3AEY DE HAVILLAND CANADA DHC-3. HC-B4TN-5NL DE HAVILLAND CANADA DHC-3. HC-B5MA-3M DE HAVILLAND CANADA DHC-4. HC-B4TN-5ML DORNIER DO228-100, -101, -200, -201, -202, -212. HC-B4TN-5L DORNIER DO228-200, -201, -202, -212. HC-B5MA-3(J, M, C) DOUGLAS DC-3C. HC-B5MA-2 EMBRAER EMB-314. HC-B4TN-5EL, -5HL, -5KL FAIRCHILD AIRCRAFT SA-226T(B). HC-B3TF-7, -7A FLUG & FAHRZEUGWERKE AG AS202/32TP. HC-B3TF-7A FUJI KM-2D (T-5). HC-B5MP-5 GRUMMAN S-2. HC-B5MA-5H GRUMMAN S-2F3AT. HC-3BTF-7A MAULE M-7-420, MX(T)-7-420. HC-B4TN-5DL, -5GL, -5JL MITSUBISHI MU-2B-25A, -26A, -30, -35A, -36A, -40 (MU-2P), -60 (MU-2N). HC-B5MP-3(A) NORD 262 FRAKES. HC-B5MP-3C NORMAN AEROPLANE NAC 6-65. HC-B5MP-3D POLISH AVIATION (MIELEC) M-28, -28B. HC-B5MP-3G POLISH AVIATION (MIELEC) M-28B. HC-B3TN-5U PZL MIELEC M18. HC-B4TN-5NL PZL MIELEC M18. HC-B5MP-5BL PZL MIELEC M18. HC-B5MP-3C PZL MIELEC M18, M18A, M18B. HC-B4MN-5B ROCKWELL OV-10 (LEFT SIDE). HC-B4MN-5BL ROCKWELL OV-10 (RIGHT SIDE). HC-B5MP-3A SHORT BROTHERS SD3-30. HC-B5MP-3C SHORT BROTHERS SD3-60-200, SD3-SHERPA-200. HC-B3TF-7A SIAI MARCHETTI (AERMACCHI) F.260C, D. HC-B3TF-7A SIAI MARCHETTI (AERMACCHI) SM-1019. HC-B3TF-7A SIAI MARCHETTI (VULCANAIR) SF600 CANGURO. 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.
Compliance
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
Unsafe condition
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.
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