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A CL65 after takeoff and gear retraction delcared an emergency and diverted dut to chronic EICAS warning
| Attributes | |
| ACN | 506139 |
| Time | |
| Date | 200103 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower tower : sql.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach landing : roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 110 flight time total : 6000 flight time type : 2000 |
| ASRS Report | 506139 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : eicas warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : fault isolation performance deficiency : repair performance deficiency : testing |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft had a previously reported nosewheel steering problem earlier that day, but I had since completed an sgf round trip without incident. Upon gear retraction, EICAS message 'steering inoperative' posted. We were still in the terminal area of ZZZ and we asked for vectors to resolve a problem from ATC. I ran the QRH, but the message re-posted. I notified company operations ZZZ and coordinated out return to ZZZ with dispatch via commercial radio. We notified ATC that we would be landing without nosewheel steering and would need a runway with favorable winds and that we would be stopping on that runway to wait for a tow to the gate. I declared an emergency. Aircraft landed without incident and we stopped on the runway. The aircraft was towed to the gate. Callback conversation with reporter acn 506138 revealed the following information: the reporter stated the nose steering system on the CL65 is a fly-by-wire or electronic steering with no cables to the cockpit tiller. The reporter stated en route to ZZZ had the EICAS warning 'steering inoperative' and followed the QRH which advises switching nose steering off. The reporter said this airplane had previous reports on nosewheel steering and was signed off with various repairs. The reporter stated prior to arrival at ZZZ an emergency was declared and landing was uneventful. The reporter aid ZZZ maintenance replaced a nose steering control unit. The reporter stated after maintenance the airplane was dispatched to abc and back to ZZZ and the nose steering operated normally. The reporter stated the aircraft was dispatched again to XXX and after takeoff and landing gear retraction the EICAS 'steering inoperative' warning appeared. The reporter said another emergency was declared, landed and towed to the gate. The reporter stated a logbook maintenance report was written and a verbal report given to maintenance. The reporter stated that maintenance never advised the crew what component or action was taken to insure a positive fix.
Original NASA ASRS Text
Title: A CL65 AFTER TAKEOFF AND GEAR RETRACTION DELCARED AN EMER AND DIVERTED DUT TO CHRONIC EICAS WARNING
Narrative: ACFT HAD A PREVIOUSLY RPTED NOSEWHEEL STEERING PROB EARLIER THAT DAY, BUT I HAD SINCE COMPLETED AN SGF ROUND TRIP WITHOUT INCIDENT. UPON GEAR RETRACTION, EICAS MESSAGE 'STEERING INOP' POSTED. WE WERE STILL IN THE TERMINAL AREA OF ZZZ AND WE ASKED FOR VECTORS TO RESOLVE A PROB FROM ATC. I RAN THE QRH, BUT THE MESSAGE RE-POSTED. I NOTIFIED COMPANY OPS ZZZ AND COORDINATED OUT RETURN TO ZZZ WITH DISPATCH VIA COMMERCIAL RADIO. WE NOTIFIED ATC THAT WE WOULD BE LNDG WITHOUT NOSEWHEEL STEERING AND WOULD NEED A RWY WITH FAVORABLE WINDS AND THAT WE WOULD BE STOPPING ON THAT RWY TO WAIT FOR A TOW TO THE GATE. I DECLARED AN EMER. ACFT LANDED WITHOUT INCIDENT AND WE STOPPED ON THE RWY. THE ACFT WAS TOWED TO THE GATE. CALLBACK CONVERSATION WITH RPTR ACN 506138 REVEALED THE FOLLOWING INFO: THE RPTR STATED THE NOSE STEERING SYS ON THE CL65 IS A FLY-BY-WIRE OR ELECTRONIC STEERING WITH NO CABLES TO THE COCKPIT TILLER. THE RPTR STATED ENRTE TO ZZZ HAD THE EICAS WARNING 'STEERING INOP' AND FOLLOWED THE QRH WHICH ADVISES SWITCHING NOSE STEERING OFF. THE RPTR SAID THIS AIRPLANE HAD PREVIOUS RPTS ON NOSEWHEEL STEERING AND WAS SIGNED OFF WITH VARIOUS REPAIRS. THE RPTR STATED PRIOR TO ARR AT ZZZ AN EMER WAS DECLARED AND LNDG WAS UNEVENTFUL. THE RPTR AID ZZZ MAINT REPLACED A NOSE STEERING CTL UNIT. THE RPTR STATED AFTER MAINT THE AIRPLANE WAS DISPATCHED TO ABC AND BACK TO ZZZ AND THE NOSE STEERING OPERATED NORMALLY. THE RPTR STATED THE ACFT WAS DISPATCHED AGAIN TO XXX AND AFTER TKOF AND LNDG GEAR RETRACTION THE EICAS 'STEERING INOP' WARNING APPEARED. THE RPTR SAID ANOTHER EMER WAS DECLARED, LANDED AND TOWED TO THE GATE. THE RPTR STATED A LOGBOOK MAINT RPT WAS WRITTEN AND A VERBAL RPT GIVEN TO MAINT. THE RPTR STATED THAT MAINT NEVER ADVISED THE CREW WHAT COMPONENT OR ACTION WAS TAKEN TO INSURE A POSITIVE FIX.
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.