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An air carrier flight crew was unable to retract the landing gear normally. After determining the problem was within the retract latching mechanism, the flight crew used the override trigger to retract the gear. B737-300.
| Attributes | |
| ACN | 359298 |
| Time | |
| Date | 199701 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : bos |
| State Reference | MA |
| Altitude | msl bound lower : 100 msl bound upper : 100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tracon : bos |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : initial |
| Route In Use | departure other departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 255 flight time total : 20000 flight time type : 3000 |
| ASRS Report | 359298 |
| 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 |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
After takeoff, landing gear failed to retract normally. Checklist procedure determined landing gear lever latch solenoid failure. Gear retracted through use of landing gear handle override trigger. Dispatcher concurred with decision to proceed to destination. Landed normally. Callback conversation with reporter revealed the following information: this B737-300 captain said that after completing their's and the maintenance center's analysis of the retract problem they were able to simply override the latching mechanism and raise the gear. The gear extended normally on approach to dca. The mechanics in dca found a fault with a cable in the latching mechanism and this was replaced.
Original NASA ASRS Text
Title: AN ACR FLC WAS UNABLE TO RETRACT THE LNDG GEAR NORMALLY. AFTER DETERMINING THE PROB WAS WITHIN THE RETRACT LATCHING MECHANISM, THE FLC USED THE OVERRIDE TRIGGER TO RETRACT THE GEAR. B737-300.
Narrative: AFTER TKOF, LNDG GEAR FAILED TO RETRACT NORMALLY. CHKLIST PROC DETERMINED LNDG GEAR LEVER LATCH SOLENOID FAILURE. GEAR RETRACTED THROUGH USE OF LNDG GEAR HANDLE OVERRIDE TRIGGER. DISPATCHER CONCURRED WITH DECISION TO PROCEED TO DEST. LANDED NORMALLY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS B737-300 CAPT SAID THAT AFTER COMPLETING THEIR'S AND THE MAINT CTR'S ANALYSIS OF THE RETRACT PROB THEY WERE ABLE TO SIMPLY OVERRIDE THE LATCHING MECHANISM AND RAISE THE GEAR. THE GEAR EXTENDED NORMALLY ON APCH TO DCA. THE MECHS IN DCA FOUND A FAULT WITH A CABLE IN THE LATCHING MECHANISM AND THIS WAS 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.