Airworthiness directives › 2007-24-14
AD 2007-24-14 Airworthiness Directives; Hartzell Propeller Inc. Model HC-E5N-3( ), HC-E5N-3( )(L), and HC-E5B-5( ) Propellers
Makes named: hartzell. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Hartzell Propeller Inc. model HC-E5N-3( ), HC-E5N-3( )(L), and HC-E5B-5( ) propellers. Hartzell Propeller Inc. model HC-E5N-3( )and HC-E5N-3( )(L) propellers are installed on, but not limited to, Piaggio P-180 Avanti airplanes with propeller serial numbers (SNs) up to and including HF229 or KU92, except those SNs listed in the following Table 1. Hartzell Propeller Inc. HC-E5B( ) propellers are installed on Grumman S-2 Tracker airplanes with propeller SNs up to and including HN14. Table 1.—Propeller SNs Not Affected by This AD HC-E5N-3( )L: HF4, HF5, HF6, HF7, HF18, HF20, HF26, HF28, HF30, HF34, HF45, HF50, HF52, HF74, HF76, HF87, HF93, HF94, HF97, HF101, HF109, HF121, HF122, HF126, HF130, HF133, HF135, HF137, HF140, HF147, HF149, HF152, HF153, HF156, HF158, HF164, HF165, HF179, HF183, HF184, HF188, HF190, HF195, HF205, HF213, HF215, HF225, HF226, HF230, HF231, HF232, HF233, HF234, HF235. HC-E5N-3( ): KU1, KU3, KU14, KU15, KU16, KU19, KU34, KU41, KU45, KU51, KU57, KU69, KU74, KU79, KU84, KU86, KU87, KU89, KU93, KU94, KU95, KU96, KU103. HC-E5B-5( ): HN15.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Propeller Hub Inspection (f) Using Hartzell Service Bulletin (SB) HC-SB-61-295, Revision 2, dated August 1, 2007, do a onetime eddy current inspection of the propeller mounting holes and replace the propeller hub if any crack is found. Inspect as follows: (1) If propeller hub TIS is unknown, or more than 1,800 hours but fewer than 4,500 hours, inspect the mounting holes within 12 calendar months, or within the next 150 hours TIS, or at the next scheduled airframe “A” check inspection. (2) If the propeller hub TIS is 1,800 hours or fewer, or 4,500 hours or more, inspect the mounting holes within 12 calendar months, or within 600 hours TIS, or at the next scheduled airframe “B” check inspection, whichever comes first. Alternative Methods of
Unsafe condition
This AD results from the discovery of a five-bladed propeller hub with a large crack on the mounting flange of the hub. We determined that the hubs at risk are in two populations. The first population is those hubs with unknown hours, or with between 1,800 and 4,500 hours time-in-service (TIS). The second population is all other hubs with fewer than 1,800 or more than 4,500 hours TIS. We are issuing this AD to prevent propeller hub failure, blade separation, damage to the airplane, and possible loss of airplane control.
Read the original on the Federal Register →
You just looked this one up by hand
TrackAD holds all 12,278 of them and matches them against the aircraft you actually look after — airframe, engine, propeller and appliances in one pass — then works out what falls due and when.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1