Trouble Light | Possible Cause | Remedy | ||
|---|---|---|---|---|
ENGINE | LANE A minor fault. LANE B minor fault. LANE A & B minor faults. | Retrieve and review ECU data. ECU
Troubleshooting | ||
LAND AIRCRAFT + ENGINE | LANE A or B major fault. | |||
FUEL PRESS | Low fuel pressure (35.5 ≤ FP < 40.5) | Coarse Fuel Filter clogged. | ||
If lights turn on with full power/high altitude and goes away with reduced power/lower altitude when flying on a hot day, this can be a sign of vapor lock. | ||||
Fuel leak. | ||||
Fuel Pressure Regulator failure. | ||||
Weak/Failed Fuel pump. | ||||
Low fuel level. | ||||
High fuel pressure (46.5 < FP ≤ 50.0) | Fuel fine filter clogged. | |||
Blockage between regulator and fuel tank. | ||||
LAND AIRCRAFT + FUEL PRESS | Excessively Low fuel pressure (FP < 38.5) | See FUEL PRESS light trouble shooting section for low fuel pressure possible cause and remedy. | ||
Excessively High fuel pressure (FP > 50.0) | See FUEL PRESS light trouble shooting section for high fuel pressure possible cause and remedy. | |||
ALTERNATOR | Engine RPM less than 2400 after start. | Follow startup procedure. | ||
Battery not charging with engine running. | Diagnose issue using wiring schematics. | |||
Low voltage on main bus (less than 13 VDC). | Diagnose issue using wiring schematics. | |||
Alternator B failure. | Replace alternator. See Rotax Maintenance Manual (Heavy Maintenance) for Rotax Engine Type 912 i Series alternator replacement. | |||
ALTERNATOR Flashing | DAC software. | Check and update DAC software version as necessary. | ||
LAND AIRCRAFT + ALTERNATOR + ENGINE | Alternator A failure. | Replace alternator. See Rotax Maintenance Manual (Heavy Maintenance) for Rotax Engine Type 912 i Series alternator replacement. | ||
Low voltage on main bus (less than 13 VDC) | Diagnose issue using wiring schematics. Electrical System Wiring Diagrams | |||
LAND AIRCRAFT + ALTERNATOR + BATTERY + ENGINE | Alternator A failure. | Replace alternator. See Rotax Maintenance Manual (Heavy Maintenance) for Rotax Engine Type 912 i Series alternator replacement. | ||
Battery voltage is low (11-12 VDC). | Test battery and replace if necessary. | |||
Battery not charging with engine running. | Diagnose issue using wiring schematics. | |||
Alternator B failure. | Replace alternator. See Rotax Maintenance Manual (Heavy Maintenance) for Rotax Engine Type 912 i Series alternator replacement. | |||
BATTERY | Battery voltage is low (11-12 VDC). | Test battery and replace if necessary.Battery
Diagnostic | ||
Battery not charging with engine running. | ||||
Master Switch is OFF. | Turn Master Switch ON. | |||
30 amp circuit breaker pulled. | Reset 30 amp circuit breaker. | |||
LAND AIRCRAFT + BATTERY | Battery voltage is very low (less than 11 VDC). | Test battery and replace. | ||
Master Switch is OFF. | Turn Master Switch ON. | |||
30 amp circuit breaker is pulled. | Reset 30 amp circuit breaker. | |||
INSTR 3 fuse is blown. | Replace INSTR 3 fuses. | |||
Electrical connection loose or disconnected. | Inspect electrical connections. Check wiring T9913 to 30 amp circuit breaker. Check for continuity between D9069P and D9069J at Fuse Box X3 connector pin 3. Inspect wiring through SM9062. Check wiring from T9110 30 amp circuit breaker to Overhead Console connector A2 between D9079P and D9079J. Check wiring T9054 from battery positive terminal to T9053 aircraft master solenoid A1. | |||
LAND AIRCRAFT + BATTERY + ALTERNATOR | Alternator B failure. | Replace Alternator B. | ||
Battery voltage is low (11-12 VDC). | Test battery and replace if necessary. | |||
Battery not charging with engine running. | ||||
SECURE WING/TAIL | LH or RH wing not secured. | Secure LH/RH wing. | ||
LH or RH wing lock switch malfunction | Check for wire connections at the switch. Verify actuator deactivates light switch. Replace winglock switch if necessary. Wing Lock | |||
LH or RH horizontal tail tip not secured. | Secure LH/RH HT tip. | |||
LH or RH horizontal tail tip lock switch malfunction. | Check for wire connections and switch deactivates light switch. Replace tail lock switch if necessary. Remove Horizontal Tail Tip Lock Switches Install Horizontal Tail Tip Lock Switches | |||
PURGE BILGE | More than 1 gallon in bilge. | Run bilge pump. | ||