Safety Recommendations A-03-58 through -61

The National Transportation Safety Board recommends that the Federal Aviation Administration:

• Require that Pratt & Whitney Canada PT6A-60 series engine starter-generators be electrically isolated from the rest of the engine. (A-03-58)
• Require that Pilatus PC-12 and PC-12/45 airplanes up to serial number (SN) 231 be equipped with a central advisory and warning system that will display engine magnetic chip detector warnings during all phases of flight. (A-03-59)
• Require on Pilatus PC-12 and PC-12/45 airplanes the installation of a magnetic chip detector, in accordance with Pilatus Service Bulletin No. 79-005, or an equivalent device, in the accessory gear box oil-drain to monitor the Pratt & Whitney Canada PT6A-67B engine's entire oil system, as soon as the necessary parts become available. (A-03-60)
• Evaluate all single-engine, turbopropeller, normal-category airplanes to ensure that the magnetic chip detectors (MCD), or equivalent devices, are installed to monitor the engine's entire oil system, and that warnings are enabled during all phases of flight. (A-03-61)

FMI: www.ntsb.gov/recs/letters/2004/A03_58_61.pdf