Duchess 76
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Flight Instructor; Flight Crew Commercial
Flight Crew Last 90 Days 60; Flight Crew Total 1750; Flight Crew Type 100
Communication Breakdown
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Returned To Departure Airport; Flight Crew Took Evasive Action; Flight Crew Overcame Equipment Problem; Flight Crew Landed As Precaution; General Maintenance Action; General Flight Cancelled / Delayed
Aircraft; Human Factors
Flight for Part 141 Multi-Engine Instructor (MEI) applicant. Preflight was claimed complete; both instructor and student walked out to [the] airplane; started engines; and taxied out. Run-up was normal; as was taxi. On takeoff; engine checks were complete and in the green. Upon rotation and climbout; both oil temperatures and cylinder head temperatures were rising rapidly. At 500 feet; instructor told MEI student to return to airport; [the] temperatures were rising too fast. Lowered power output and maintained 700 feet AGL. By the end of the downwind; both temperatures were in the red; oil pressure still in the green. Base to final had normal airspeeds. Landed safely with engines operating.Upon landing and rollout to taxi; engines began to stutter. Mixtures were pulled as we exited the runway and airplane was shut down. Post-shutdown examination showed engine plugs were not taken out. Thus; pre-flight had not been completed. Engine malfunction was due to student not completing pre-flight and instructor placing too much responsibility and trust upon [the] student to complete such actions. It is the student's responsibility to complete the pre-flight; but the instructor's responsibility to ensure pre-flight is completed. Corrective action would be for instructor to check the MEI student's pre-flight responsibilities and checklist items.
BE-76 flight instructor reported an engine temperature problem during takeoff resulting in a return to departure airport.