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Captain and first officer reported the gulfstream G450 aircraft experienced a left engine power rollback on takeoff. A malfunctioning modular avionics unit (mau) card and improperly installed reverser lock-out pin contributed to the event.
| Attributes | |
| ACN | 1310972 |
| Time | |
| Date | 201511 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Gulfstream IV / G350 / G450 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Reverser Lockout |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Experience | Flight Crew Total 11150 Flight Crew Type 125 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 11500 Flight Crew Type 125 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Inflight Event / Encounter Other / Unknown |
Narrative:
The aircraft experienced a loss of power from the left engine due to a pinned thrust reverser (TR). It was determined by maintenance that the engine fadec/electronic engine controller (eec) was sending information to a bad modular avionics unit (mau) card.
Original NASA ASRS Text
Title: Captain and First Officer reported the Gulfstream G450 aircraft experienced a left engine power rollback on takeoff. A malfunctioning Modular Avionics Unit (MAU) Card and improperly installed reverser lock-out pin contributed to the event.
Narrative: The aircraft experienced a loss of power from the left engine due to a pinned Thrust Reverser (TR). It was determined by Maintenance that the engine FADEC/Electronic Engine Controller (EEC) was sending information to a bad Modular Avionics Unit (MAU) Card.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.