Cl-65 crew had a computer crash that affected multiple navigation and aircraft system. The crew was ...

Attributes
ACN	607471
Time
Date	200401
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : snine
State Reference	MN
Altitude	msl single value : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zmp.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	departure sid : snine
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time last 90 days : 210 flight time total : 1300 flight time type : 800
ASRS Report	607471
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical non adherence : clearance other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : multiple nav systems other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist controller : issued new clearance other
Consequence	other
Supplementary
Problem Areas	Aircraft FAA
Primary Problem	Aircraft

Narrative:

Jan/tue/04, msp direct cwa, fpr: msp.SNINE5.geeze. Cwa. Flight time estimated to be 32 mins. On SNINE5 departure procedure en route to cwa, level at 17000 ft. At 10 mi prior to snine we experienced multiple master caution messages (stall fail, EFIS comp mon, FMS dr, FMS dr exceeds 5 mins). During this time, ZMP notified us that we were off the airway and assigned direct geeze. We related to center that we just experienced multiple navigation failures and requested a heading to geeze. Center assigned us a heading to geeze and we complied navigating via our standby compass (whiskey compass). We then verified our on-course heading with center every few mins in interest of safety. Once handed off to the next controller, we were given another heading direct cwa. With the guidance of this controller, and backed up by our ADF once in range, the remaining flight continued without incidence. Once on the ground in cwa, we contacted our maintenance controller to troubleshoot all previous FMS failures and related master cautions. Aircraft was 'pwred down' and all system were reset in accordance with maintenance control directives. Aircraft was flown to dtw without further incidence. Both captain's and the first officer's FMS screens matched one another throughout the flight. After initial notification (alert) from ZMP of deviation, FMS screens were xrefed to standby compass every few mins. Heading deviations ranged from 10-20 degrees throughout this flight. Please note: until the simultaneous master cautions and ZMP radio call, we had no indication that we were off the departure procedure.

Original NASA ASRS Text

Title: CL-65 CREW HAD A COMPUTER CRASH THAT AFFECTED MULTIPLE NAV AND ACFT SYS. THE CREW WAS REQUIRED TO GET HDGS FROM THE CTLR TO GET TO THEIR DEST. THE ONLY OPERATIVE RELIABLE SOURCE OF INFO WAS THE WHISKEY COMPASS.

Narrative: JAN/TUE/04, MSP DIRECT CWA, FPR: MSP.SNINE5.GEEZE. CWA. FLT TIME ESTIMATED TO BE 32 MINS. ON SNINE5 DEP PROC ENRTE TO CWA, LEVEL AT 17000 FT. AT 10 MI PRIOR TO SNINE WE EXPERIENCED MULTIPLE MASTER CAUTION MESSAGES (STALL FAIL, EFIS COMP MON, FMS DR, FMS DR EXCEEDS 5 MINS). DURING THIS TIME, ZMP NOTIFIED US THAT WE WERE OFF THE AIRWAY AND ASSIGNED DIRECT GEEZE. WE RELATED TO CTR THAT WE JUST EXPERIENCED MULTIPLE NAV FAILURES AND REQUESTED A HDG TO GEEZE. CTR ASSIGNED US A HDG TO GEEZE AND WE COMPLIED NAVING VIA OUR STANDBY COMPASS (WHISKEY COMPASS). WE THEN VERIFIED OUR ON-COURSE HDG WITH CTR EVERY FEW MINS IN INTEREST OF SAFETY. ONCE HANDED OFF TO THE NEXT CTLR, WE WERE GIVEN ANOTHER HDG DIRECT CWA. WITH THE GUIDANCE OF THIS CTLR, AND BACKED UP BY OUR ADF ONCE IN RANGE, THE REMAINING FLT CONTINUED WITHOUT INCIDENCE. ONCE ON THE GND IN CWA, WE CONTACTED OUR MAINT CTLR TO TROUBLESHOOT ALL PREVIOUS FMS FAILURES AND RELATED MASTER CAUTIONS. ACFT WAS 'PWRED DOWN' AND ALL SYS WERE RESET IN ACCORDANCE WITH MAINT CTL DIRECTIVES. ACFT WAS FLOWN TO DTW WITHOUT FURTHER INCIDENCE. BOTH CAPT'S AND THE FO'S FMS SCREENS MATCHED ONE ANOTHER THROUGHOUT THE FLT. AFTER INITIAL NOTIFICATION (ALERT) FROM ZMP OF DEV, FMS SCREENS WERE XREFED TO STANDBY COMPASS EVERY FEW MINS. HDG DEVS RANGED FROM 10-20 DEGS THROUGHOUT THIS FLT. PLEASE NOTE: UNTIL THE SIMULTANEOUS MASTER CAUTIONS AND ZMP RADIO CALL, WE HAD NO INDICATION THAT WE WERE OFF THE DEP PROC.

Data retrieved from NASA's ASRS site as of July 2007 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.

Cl-65 crew had a computer crash that affected multiple navigation and aircraft system. The crew was required to get headings from the controller to get to their destination. The only operative reliable source of information was the whiskey compass.