Featured Technical Cases
Hand-picked troubleshooting reports and expert investigations
Powerplant
Technical Case Study: In-Flight Reduction Gear Box (RGB) Failure and Metal Contamination
During a routine flight, the crew observed a sudden drop in the Reduction Gear Assembly (RGB) oil pressure, indicated by...
Powerplant
T56 Engine Power Section Oil Pressure High Indication Corrected by Main Oil Pump Regulator Adjustment
After engine start, the T56 engine power section oil pressure indication was reading 62 PSI, which exceeded the normal o...
Powerplant
Technical Case Study: Troubleshooting No Ignition During Start (16%-20% RPM)
1. Problem Description During a standard ground start attempt, the engine reached the 16% RPM threshold where ignition ...
Powerplant
Technical Case Study: RPM Hang and Tailpipe Torching (T56 Engine)
Technical Case Study: RPM Hang and Tailpipe Torching (T56 Engine) 1. Problem Description During standard ground star...
Powerplant
Power Fluctuation Due to Temperature Datum System Malfunction
During climb at approximately 20,000 feet, the flight crew reported power fluctuations on engine No.4. The following ...
Avionics & Electrical
No. 3 Generator Failure to Parallel
Issue: After engine start, the No. 3 Generator comes online but fails to parallel with the other generators. The "Gen O...