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A canadair CL65 on approach at 4000 ft extended landing gear and only nose gear extended and locked with mains indicating up and locked.
| Attributes | |
| ACN | 537618 |
| Time | |
| Date | 200202 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dfw.airport |
| State Reference | TX |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Ice |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : dfw.tower tower : ord.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 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : atp pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 40 flight time total : 3900 flight time type : 40 |
| ASRS Report | 537618 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : position indication lights other flight crewa other flight crewb |
| Resolutory Action | flight crew : overcame equipment problem flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
On final approach, put the landing gear down and nose gear came down and locked, but both main gear remained up. Put landing gear handle up and all landing gear came up. Put landing gear handle down and the nose gear came down and locked, but both mains stayed up and locked. Checked hydraulic pressure and was ok. Performed manual gear extension checklist and all 3 gear came down and locked. Landed with no other problems. Had emergency equipment standing by for precaution. Callback conversation with reporter revealed the following information: the reporter stated the maintenance crew replaced the landing gear logic box and returned the airplane to service. The reporter said the landing gear was extended manually.
Original NASA ASRS Text
Title: A CANADAIR CL65 ON APCH AT 4000 FT EXTENDED LNDG GEAR AND ONLY NOSE GEAR EXTENDED AND LOCKED WITH MAINS INDICATING UP AND LOCKED.
Narrative: ON FINAL APCH, PUT THE LNDG GEAR DOWN AND NOSE GEAR CAME DOWN AND LOCKED, BUT BOTH MAIN GEAR REMAINED UP. PUT LNDG GEAR HANDLE UP AND ALL LNDG GEAR CAME UP. PUT LNDG GEAR HANDLE DOWN AND THE NOSE GEAR CAME DOWN AND LOCKED, BUT BOTH MAINS STAYED UP AND LOCKED. CHKED HYD PRESSURE AND WAS OK. PERFORMED MANUAL GEAR EXTENSION CHKLIST AND ALL 3 GEAR CAME DOWN AND LOCKED. LANDED WITH NO OTHER PROBS. HAD EMER EQUIP STANDING BY FOR PRECAUTION. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE MAINT CREW REPLACED THE LNDG GEAR LOGIC BOX AND RETURNED THE AIRPLANE TO SVC. THE RPTR SAID THE LNDG GEAR WAS EXTENDED MANUALLY.
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.