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A B737-200 on approach experienced a nose gear unsafe warning light. Recycling the gear got green light. On ground maintenance found a failed or intermittent lock actuator.
| Attributes | |
| ACN | 386552 |
| Time | |
| Date | 199711 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mdw |
| State Reference | IL |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tracon : mdw |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 228 flight time total : 7265 flight time type : 2144 |
| ASRS Report | 386552 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | aircraft : equipment problem dissipated |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
During the landing gear extension on approach to ord's midway airport, we received normal gear down indications for the main gear but no nose gear light. We broke off the approach and went around. With the next gear extension attempt on the downwind, normal down and locked indications were received for all 3 landing gear. After landing, maintenance was notified. Callback conversation with reporter revealed the following information: the reporter said the aircraft was a B737-200 and the feedback from maintenance was a failed or intermittent nose gear lock actuator and the actuator mount was also replaced.
Original NASA ASRS Text
Title: A B737-200 ON APCH EXPERIENCED A NOSE GEAR UNSAFE WARNING LIGHT. RECYCLING THE GEAR GOT GREEN LIGHT. ON GND MAINT FOUND A FAILED OR INTERMITTENT LOCK ACTUATOR.
Narrative: DURING THE LNDG GEAR EXTENSION ON APCH TO ORD'S MIDWAY ARPT, WE RECEIVED NORMAL GEAR DOWN INDICATIONS FOR THE MAIN GEAR BUT NO NOSE GEAR LIGHT. WE BROKE OFF THE APCH AND WENT AROUND. WITH THE NEXT GEAR EXTENSION ATTEMPT ON THE DOWNWIND, NORMAL DOWN AND LOCKED INDICATIONS WERE RECEIVED FOR ALL 3 LNDG GEAR. AFTER LNDG, MAINT WAS NOTIFIED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR SAID THE ACFT WAS A B737-200 AND THE FEEDBACK FROM MAINT WAS A FAILED OR INTERMITTENT NOSE GEAR LOCK ACTUATOR AND THE ACTUATOR MOUNT WAS ALSO REPLACED.
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.