 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Departure turn overshot in a snowstorm during an equipment malfunction on a departing F100 from ord, il.
| Attributes | |
| ACN | 607085 |
| Time | |
| Date | 200402 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | agl bound lower : 400 agl bound upper : 1000 |
| Environment | |
| Weather Elements | Snow |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon tower : ord.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| ASRS Report | 607085 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 607081 |
| Events | |
| Anomaly | aircraft equipment problem : critical inflight encounter : weather non adherence : clearance other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : flt ctl computer other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : became reoriented flight crew : overcame equipment problem other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Weather Flight Crew Human Performance Environmental Factor |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Taking off on runway 4L at ord during a snowstorm, we were assigned an initial heading of 070 degrees. The WX was IMC and the first officer was flying. As we initiated the turn, we received multiple warnings about the flight instruments. I scanned all 3 attitude and speed indications and found they were all in agreement. By the time I checked headings, we had overshot our assigned 070 degree heading by 40 degrees. Just as I caught this, the tower controller gave us a 160 degree heading and turned us over to departure control. We quickly determined that the instruments on my side were functioning properly, so I took control of the aircraft. The malfunction was the first officer's flight control computer (FCC). We had several visual and aural warnings associated with this failure. First officer's flight director failure, #2 autothrottle failure, speed limit flags on both pfd's, no windshear guidance, no autoland, and an FCC fault. Supplemental information from acn 607081: right at the moment I began my turn, the first officer's flight control computer (FCC) failed causing multiple instrumentation failures, and several annunciators to illuminate (flashing). I was momentarily distraction by the immediate failure and I turned past my heading of 070 degrees to about 110 degrees. Ord tower never made any mention of the error.
Original NASA ASRS Text
Title: DEP TURN OVERSHOT IN A SNOWSTORM DURING AN EQUIP MALFUNCTION ON A DEPARTING F100 FROM ORD, IL.
Narrative: TAKING OFF ON RWY 4L AT ORD DURING A SNOWSTORM, WE WERE ASSIGNED AN INITIAL HDG OF 070 DEGS. THE WX WAS IMC AND THE FO WAS FLYING. AS WE INITIATED THE TURN, WE RECEIVED MULTIPLE WARNINGS ABOUT THE FLT INSTS. I SCANNED ALL 3 ATTITUDE AND SPD INDICATIONS AND FOUND THEY WERE ALL IN AGREEMENT. BY THE TIME I CHKED HDGS, WE HAD OVERSHOT OUR ASSIGNED 070 DEG HDG BY 40 DEGS. JUST AS I CAUGHT THIS, THE TWR CTLR GAVE US A 160 DEG HDG AND TURNED US OVER TO DEP CTL. WE QUICKLY DETERMINED THAT THE INSTS ON MY SIDE WERE FUNCTIONING PROPERLY, SO I TOOK CTL OF THE ACFT. THE MALFUNCTION WAS THE FO'S FLT CTL COMPUTER (FCC). WE HAD SEVERAL VISUAL AND AURAL WARNINGS ASSOCIATED WITH THIS FAILURE. FO'S FLT DIRECTOR FAILURE, #2 AUTOTHROTTLE FAILURE, SPD LIMIT FLAGS ON BOTH PFD'S, NO WINDSHEAR GUIDANCE, NO AUTOLAND, AND AN FCC FAULT. SUPPLEMENTAL INFO FROM ACN 607081: RIGHT AT THE MOMENT I BEGAN MY TURN, THE FO'S FLT CTL COMPUTER (FCC) FAILED CAUSING MULTIPLE INSTRUMENTATION FAILURES, AND SEVERAL ANNUNCIATORS TO ILLUMINATE (FLASHING). I WAS MOMENTARILY DISTR BY THE IMMEDIATE FAILURE AND I TURNED PAST MY HDG OF 070 DEGS TO ABOUT 110 DEGS. ORD TWR NEVER MADE ANY MENTION OF THE ERROR.
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.