AD 2007-26-09 Airworthiness Directives; Hartzell Propeller Inc. Compact Series Propellers

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

This AD applies to all Hartzell Propeller Inc. models ( )HC-( )( )Y( )-( )( )( ) compact series constant speed or feathering propellers with Hartzell manufactured “Y” shank aluminum blades. These propellers are used on, but not limited to, the following airplanes:   Manufacturer Airplane Model Aermacchi S.pA. (formerly Siai-Marchetti) S-208 Aero Commander 200B and 200D Aerostar 600 Beech 24, 35, 36, 45, 55, 56TC, 58, 60, and 95 Bellanca 14 and 17 series Cessna 182 and 188 Embraer EMB-200A Maule M5 Mooney M20 and M22 Pilatus Britten Norman, or Britten Norman BN-2, BN-2A, and BN-2A-6 Piper PA-23, PA-24, PA-28, PA-30, PA-31, PA-32, PA-34, PA-36, and PA-39 Pitts S-1T and S-2A Rockwell 112, 114, 200, 500, and 685 series (d) The parentheses appearing in the propeller model number indicates the presence or absence of an additional letter(s) that varies the basic propeller model. This AD applies regardless of whether these letters are present or absent in the propeller model designation.

You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. (g) If the propeller maintenance records show compliance with AD 77-12-06R2, then compliance was previously done and no further action is required. (h) Propellers are considered in compliance with the one-time inspection and rework requirements only, of this AD if: (1) All blades are serial number D47534 and above, or (2) All blades are identified with the letters “PR” or “R” which are ink-stamped on the camber side, or the letters “RD” which are metal-stamped on the blade butt. Models ( )HC-( )( )Y( ) Compact Series “Y” Shank Propellers (i) If propeller models ( )HC-( )( )Y( ) have not been inspected and reworked in accordance with AD 77-12-06R2, then before further flight, do a one-time action to remove, inspect, rework, or replace blades if necessary using Hartzell Service Bulletin (SB) No. 118A, dated February 15, 1977. Propeller Blade Shank Cold Rolling (j) One requirement in Hartzell SB No. 118A is the cold rolling of the propeller blade shank. (1) Cold rolling is a critical requirement in the prevention of cracks in the blade. Propeller repair shops must obtain and maintain proper certification to perform the cold rolling procedure. (2) For a current list of propeller overhaul facilities approved to perform the blade shank cold rolling procedure, contact Hartzell Product Support, telephone (937) 778-4200. (3) Not all propeller repair facilities have the equipment to properly perform a cold roll of the blade shanks. (4) In addition, any rework in the blade shank area will also necessitate the cold rolling of the blade shank area, apart from the one-time cold rolling requirement of this AD. Instrument Panel Modifications (k) If airplanes with propeller models ( )HC-C2YK-( )( )( )/( )( )7666A-( ), installed on (undampered) 200 or more horsepower Lycoming IO-360 series engines, have not been modified using AD 77-12-06R2, then modify the airplane instrument panel according to the following subparagraphs before further flight. Airplanes include, but are not limited to, Mooney M20E and M20F (normal category), Piper PA-28R-200 (normal category), and Pitts S-1T and S-2A (acrobatic category). (1) For normal category airplanes, before further flight, remove the present vibration placard and affix a new placard near the engine tachometer that states: “Avoid continuous operation: Between 2,000 and 2,350 rpm.” (2) For utility and acrobatic category airplanes, before further flight, remove the present vibration placard and affix a new placard near the engine tachometer that states: “Avoid continuous operation: Between 2,000 and 2,350 rpm. Above 2,600 rpm in acrobatic flight.” (3) For normal category airplanes, re-mark the engine tachometer face or bezel with a red arc for the restricted engine speed range, between 2,000 and 2,350 rpm. (4) For acrobatic and utility airplanes, re-mark the engine tachometer face or bezel with a red arc for each restricted engine speed range, i.e., between 2,000 and 2,350 rpm and between 2,600 and 2,700 rpm (red line). Models ( )HC-C2YK-( )( )( )/( )( )8475( )-( ) or ( )( )8477( )-( ) Propellers (l) If propeller models ( )HC-C2YK-( )( )( )/( )( )8475( )-( ) or ( )( )8477( )-( ) have not been inspected and reworked in accordance with AD 74-15-02, then do the following maintenance before further flight. (1) Remove propeller from airplane. (2) Modify pitch change mechanism, and replace blades with equivalent model blades prefixed with letter “F” using Hartzell Service Letter No. 69, dated November 30, 1971 and Hartzell SB No. 101D, dated December 19, 1974. (3) Inspect and repair or replace, if necessary, using Hartzell SB No. 118A, dated February 15, 1977. Alternative Methods of

This AD results from operators requesting clarification of certain portions of AD 2002-09-08. We are issuing this AD to prevent failure of the propeller blade from fatigue cracks in the aluminum blade shank radius, which can result in damage to the airplane and loss of airplane control.