MBB-BK 117 All Series
Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 75; Flight Crew Total 6100; Flight Crew Type 1000
Communication Breakdown; Workload; Troubleshooting
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR
General Maintenance Action
Human Factors; Logbook Entry; Company Policy; Aircraft; Procedure
Upon landing at home base (ZZZ) oil was noted on the cowling of the number 1 engine.  I elected to stay running and send the crew to tell the mechanic to come look at the leak.  The crew returned and informed me that the mechanic was aware of the leak and that it was in limits.My concern was raised as I wondered how can he determine from inside the hangar that this is the same leak; or at the same rate without a visual inspection.I shut down the aircraft and approached the mechanic with those concerns; he stated he was to busy to look into it any further.  I wrote the leak up and informed him of such; he stated 'I'll just sign that off'20 minutes later; without having me run the aircraft up; the mechanic handed me the logbook with the write up signed off with appropriate references that state that the aircraft was run up and the mechanic performed a visual inspection in accordance with the Rotorcraft Flight Manual (RFM).  As I was the only pilot on duty; and I did not run up the aircraft; it is my opinion that my logbook was falsified in order to maintain an in service rate.  I informed management of this and they said there is nothing they could do.
Pilot reported that after writing a discrepancy for an engine oil leak; the technician signed the log book entry as acceptable for service without inspecting; cleaning or operating the engine to determine the airworthiness of the aircraft.