These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
Engine (PT6B-37A)Certain serial numbers: PT6B-37A …–PCE-PU0289. Only with: Engines without an installed FCU incorporating a stainless steel air adapter per P&WC SB No. PT6B-72-39107, Revision No. 1.
Engine (PT6B-37A)Certain serial numbers: PT6B-37A …–PCE-PU0275; PT6B-37A PCE-PU0278
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (4)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
Landing gear · skid · corrodedJul 9, 2026
CORROSION WAS IDENTIFIED IN THE SKID TUBE BUSHING AREA WHERE SKID SHOE THROUGH BOLTS ATTACH.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Main rotor · blade · damagedFeb 13, 2021
MAIN ROTOR BLADE DAMAGE. DURING CLIMB EXPERIENCED LOUD THUD PERFORMED PER-CAUTIONARY TO BASE LANDING FOUND HOLE THROUGH BLUE MAIN ROTOR BLADE AND LEADING EDGE DAMAGE. NO FLIGHT CONTROL DEFICIENCIES NOTED. HOLE AND DAMAGE IS LOCATED AT APROX 165 MM FROM ROOT OF BLADE.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Main rotor drive · fitting · crackedMay 18, 2018
FOUND A CRACKED LT TRANSMISSION FITTING, FOUND DURING AN EDDY CURRENT INSPECTION IAW EO 49-5300-EO-2335.
From FAA Service Difficulty Reports; matched by N-number and serial number.
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Fuselage · retainer · corrodedApr 17, 2017
FOUND 2 EACH CRACKS AT STA 2049.5, BL 480 LT AND BL 480 RT. RETAINER AND 2 EACH CRACKS AT FASTENER STA 2049.5 LEFT/RIGHT WL 1150.0.
From FAA Service Difficulty Reports; matched by N-number and serial number.