Airworthiness Directive 2003-08-05
one-timeAirworthiness Directives; Eurocopter France Model AS350B3 Helicopters
What this AD requires
This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (Eurocopter) model helicopters that requires inspecting the ASU No. 2 printed circuit board (PCB) to determine if the resistor R8 is installed, and if it is not installed, replacing the PCB with an airworthy PCB with that resistor installed. This amendment is prompted by the discovery of a PCB without a critical resistor that polarizes the voltage regulator that regulates electrical power to a critical warning light, a critical caution light, and the main rotor revolutions per minute (RPM) signal to the vehicle engine management display (VEMD). The actions specified by this AD are intended to prevent the malfunction of the two critical lights and the rotor RPM signal to the VEMD, failure of these components to timely alert the pilot to the associated malfunctions, further helicopter damage because of these malfunctions, and subsequent loss of control of the helicopter.
Which aircraft AD 2003-08-05 applies to
Specific model not present in the extracted applicability text. Concerns ASU No. 2 printed circuit board P/N SE 03022 (per Eurocopter SB No. 77.00.07 dated 3/27/2000); inspect within 15 hours TIS for missing resistor R8, which can cause malfunction of the BATT TEMP warning light, ENGINE CHIP caution, and rotor RPM signal to the VEMD; replace PCB within 50 hours TIS if R8 is missing.
Whether AD 2003-08-05 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.