H & S Propeller Shop, Inc
FAA Certified Repair Station # MQ5R050N

H&S Propeller cannot over-emphasize the importance of safety around your propeller. We have been taught to treat every installed propeller as a loaded gun, which could go off at any time. While turning the propeller of your aircraft, the whole engine drive train is turning as well. If there happens to be a small amount of fuel in the intake/ fuel injector, and the magneto switch is on-or the magneto’s are not properly grounded,  a small movement of the propeller MAY CAUSE THE ENGINE TO FIRE!!! We have seen this in the past, and want to pass along how important these warnings are.
  If you must turn the propeller, ensure: 1) Magneto switch(s) are OFF. 2) Master switch is turned off. 3) Throttle and Mixture controls are pulled into idle and cut-off positions. 4) Ensure parking brake is set, and wheels are chalked. 5) The area around propeller is clear of persons and objects.We feel the best way to turn the propeller is OPPOSITE the direction of normal rotation. There is much debate on how this is best done, but we feel this is the safest way to ensure the magnetos do not fire. Another bit of information we would like to share is to be careful while performing your  pre-flight inspection…. While pre-flighting the aircraft, we are taught to run our (bare)hands up one side of propeller, and down the other side. Please be careful while doing this. A few customers have reported being cut due to a sharp edge sticking out, which they did not see-and occurred sometime after last flight, and just blindly ran their hands up and down the propeller. Please use your eyes as well, and watch where you are rubbing. It is good to notice a jagged nick in leading edge of prop, but not at the expense of an emergency room visit! 

  Propeller Records.
Maintenance records are a required part of aircraft maintenance. Propeller maintenance recordkeeping responsibility is ultimately assigned to the owner/operator of aircraft operated under 14 CFR part 91 in accordance with part 91, section 91.403. Section 91.417 requires a record of maintenance, including a record of total time in service and time since last overhaul for propellers required to be overhauled on a specific time basis, for each propeller. A propeller logbook is an appropriate document for recording total time in service and time since overhaul. In some cases, lack of records may require premature maintenance activity, overhaul, or possible retirement since most ADs presume if the time in service and time since overhaul is not known, the propeller requires compliance with the most restrictive level called out in the AD. Propeller logbooks are available from various sources, including the propeller manufacturer. Damage as well as details of maintenance to the propeller should be entered into the logbook. The total time in service and time since the last overhaul recorded in the propeller logbook should be updated at minimum at the time of annual inspection when reviewing the aircraft operating maintenance records.
H&S Propeller will be happy to provide you with a new logbook after we overhaul your propeller, just ask!  Also, please ensure that your maintenance facility properly transfers the propeller data, and remembers to sign off inspections.