Malfunctioning fgcs distract flight crew of gulfstream iv flying SID from vny. May have exceeded cro...

Attributes
ACN	818128
Time
Date	200901
Local Time Of Day	1801-2400
Place
Locale Reference	VNY.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Gulfstream IV / G350 / G450
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	SID NUAL
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	Captain
Qualification	Flight Crew Commercial Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 13500 Flight Crew Type 1400
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial
Experience	Flight Crew Last 90 Days 120 Flight Crew Total 6200 Flight Crew Type 400
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Published Material / Policy

Narrative:

We were departing from vny at night; VMC. We were cleared to depart runway 16R; NUAL6.dag departure. Shortly after gear retraction; the pilot flying reached for and pressed the 'pitch trim' switch. I asked what he had; and he said he lost electric trim. Shortly after that; the 'yaw damper' light illuminated. I tried to reset the trim switch which would not reset. 5 seconds or so later; the FGC-1 'fail cas' message illuminated. I reached up and selected FGC-2. There was no change; so I re-selected FGC-1 and was able to restore the 'pitch trim' and 'yaw damper.' by the time this was accomplished; we were leveling at 4;000 ft and initiating a turn from 160 degrees to 110 degrees. The SID requires crossing the vny 2.2 DME at or below 1;700 ft; which we may have violated. It became apparent after restoring FGC-1 that the pilot flying had lost his FD when FGC-1 initially failed. All systems functioned normally for the remainder of the flight.

Original NASA ASRS Text

Title: Malfunctioning FGCs distract flight crew of Gulfstream IV flying SID from VNY. May have exceeded crossing restriction.

Narrative: We were departing from VNY at night; VMC. We were cleared to depart Runway 16R; NUAL6.DAG Departure. Shortly after gear retraction; the Pilot Flying reached for and pressed the 'Pitch Trim' switch. I asked what he had; and he said he lost electric trim. Shortly after that; the 'Yaw Damper' light illuminated. I tried to reset the trim switch which would not reset. 5 seconds or so later; the FGC-1 'Fail CAS' message illuminated. I reached up and selected FGC-2. There was no change; so I re-selected FGC-1 and was able to restore the 'Pitch Trim' and 'Yaw Damper.' By the time this was accomplished; we were leveling at 4;000 FT and initiating a turn from 160 degrees to 110 degrees. The SID requires crossing the VNY 2.2 DME at or below 1;700 FT; which we may have violated. It became apparent after restoring FGC-1 that the Pilot Flying had lost his FD when FGC-1 initially failed. All systems functioned normally for the remainder of the flight.

Data retrieved from NASA's ASRS site as of April 2012 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.

Malfunctioning fgcs distract flight crew of gulfstream iv flying SID from vny. May have exceeded crossing restriction.