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A metropolitan ii pilot temporarily loses control of his aircraft when he loses 1 inverter for his flight instruments after departure from dtw, mi.
| Attributes | |
| ACN | 430421 |
| Time | |
| Date | 199903 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : dtw.airport |
| State Reference | MI |
| Altitude | msl bound lower : 1000 msl bound upper : 1500 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Snow |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : d10.tracon tower : fmn.tower |
| Operator | common carrier : air carrier |
| Make Model Name | SA-226 TC Metro II |
| Operating Under FAR Part | Part 135 |
| Flight Phase | climbout : initial |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d10.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : single pilot |
| Qualification | pilot : cfi pilot : commercial pilot : multi engine |
| Experience | flight time last 90 days : 70 flight time total : 2300 flight time type : 70 |
| ASRS Report | 430421 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude conflict : airborne less severe inflight encounter : weather non adherence : clearance other anomaly other spatial deviation other spatial deviation |
| Independent Detector | atc equipment other atc equipment : mode c other controllera |
| Resolutory Action | controller : issued new clearance controller : separated traffic flight crew : regained aircraft control |
| Consequence | faa : reviewed incident with flight crew other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance Weather |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
After given a clearance for takeoff from dtw I was given a heading of 310 degrees and a climb to 4000 ft. Shortly upon entering the clouds I realized that my attitude indicator, heading indicator and altitude indicator had failed. I momentarily lost control of the aircraft, causing an ATC deviation, that being a 180 degree turn and a 500 ft loss in altitude. I regained control using copilot's instruments. I was also questioned by ATC and I told them of my predicament. I know that the jet behind me was given a new clearance or deviation because of me. I also know that my controller gave me a new clearance to immediately comply with to avoid a conflict. An immediate climb to 13000 ft and a 220 degree heading. I had to ask for confirmation on this because I was very busy with the aircraft and troubleshooting. I soon discovered an inoperative inverter and switched to backup. This corrected all failures. Upon reaching my destination I was told to call dtw. This I did and I explained in detail what had happened. Dtw did an excellent job in controling the situation. As for myself, one thought about preventing a future occurrence is to xchk my copilot instruments more frequently.
Original NASA ASRS Text
Title: A METRO II PLT TEMPORARILY LOSES CTL OF HIS ACFT WHEN HE LOSES 1 INVERTER FOR HIS FLT INSTS AFTER DEP FROM DTW, MI.
Narrative: AFTER GIVEN A CLRNC FOR TKOF FROM DTW I WAS GIVEN A HDG OF 310 DEGS AND A CLB TO 4000 FT. SHORTLY UPON ENTERING THE CLOUDS I REALIZED THAT MY ATTITUDE INDICATOR, HDG INDICATOR AND ALT INDICATOR HAD FAILED. I MOMENTARILY LOST CTL OF THE ACFT, CAUSING AN ATC DEV, THAT BEING A 180 DEG TURN AND A 500 FT LOSS IN ALT. I REGAINED CTL USING COPLT'S INSTS. I WAS ALSO QUESTIONED BY ATC AND I TOLD THEM OF MY PREDICAMENT. I KNOW THAT THE JET BEHIND ME WAS GIVEN A NEW CLRNC OR DEV BECAUSE OF ME. I ALSO KNOW THAT MY CTLR GAVE ME A NEW CLRNC TO IMMEDIATELY COMPLY WITH TO AVOID A CONFLICT. AN IMMEDIATE CLB TO 13000 FT AND A 220 DEG HDG. I HAD TO ASK FOR CONFIRMATION ON THIS BECAUSE I WAS VERY BUSY WITH THE ACFT AND TROUBLESHOOTING. I SOON DISCOVERED AN INOP INVERTER AND SWITCHED TO BACKUP. THIS CORRECTED ALL FAILURES. UPON REACHING MY DEST I WAS TOLD TO CALL DTW. THIS I DID AND I EXPLAINED IN DETAIL WHAT HAD HAPPENED. DTW DID AN EXCELLENT JOB IN CTLING THE SIT. AS FOR MYSELF, ONE THOUGHT ABOUT PREVENTING A FUTURE OCCURRENCE IS TO XCHK MY COPLT INSTS MORE FREQUENTLY.
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.