 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-300 experienced nose gear vibration on takeoff and on initial climb could not move the landing gear lever past off position. Declared an emergency and diverted to crp.
| Attributes | |
| ACN | 367063 |
| Time | |
| Date | 199704 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mty |
| State Reference | FO |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : initial other other |
| Route In Use | departure other enroute airway : zhu |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer pilot : commercial |
| Experience | flight time last 90 days : 270 flight time total : 10000 flight time type : 2500 |
| ASRS Report | 367063 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument pilot : flight engineer |
| Experience | flight time last 90 days : 300 flight time total : 8000 flight time type : 900 |
| ASRS Report | 367428 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Gear would not retract. Believed we had possible gear problems in addition to retraction problem because of vibrations on takeoff. Proceeded to USA for longer runway plus emergency consideration. For fuel considerations, we landed in crp instead of iah. Callback conversation with reporter revealed the following information: reporter states the aircraft was a B737-300 and on takeoff from mty they felt a vibration coming from the nose landing gear. The landing gear handle would not move past the off position to up, suggesting some failure in the squat sensing system. He stated that he did not use the override trigger because with the nose gear vibration and the lock solenoid not energized may mean some serious gear problems. He made the decision to leave the gear as is and divert to crp. Maintenance found the landing gear lever solenoid defective and it was replaced. He also said the flight operations manual is not to clear on this situation.
Original NASA ASRS Text
Title: A B737-300 EXPERIENCED NOSE GEAR VIBRATION ON TKOF AND ON INITIAL CLB COULD NOT MOVE THE LNDG GEAR LEVER PAST OFF POS. DECLARED AN EMER AND DIVERTED TO CRP.
Narrative: GEAR WOULD NOT RETRACT. BELIEVED WE HAD POSSIBLE GEAR PROBS IN ADDITION TO RETRACTION PROB BECAUSE OF VIBRATIONS ON TKOF. PROCEEDED TO USA FOR LONGER RWY PLUS EMER CONSIDERATION. FOR FUEL CONSIDERATIONS, WE LANDED IN CRP INSTEAD OF IAH. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THE ACFT WAS A B737-300 AND ON TKOF FROM MTY THEY FELT A VIBRATION COMING FROM THE NOSE LNDG GEAR. THE LNDG GEAR HANDLE WOULD NOT MOVE PAST THE OFF POS TO UP, SUGGESTING SOME FAILURE IN THE SQUAT SENSING SYS. HE STATED THAT HE DID NOT USE THE OVERRIDE TRIGGER BECAUSE WITH THE NOSE GEAR VIBRATION AND THE LOCK SOLENOID NOT ENERGIZED MAY MEAN SOME SERIOUS GEAR PROBS. HE MADE THE DECISION TO LEAVE THE GEAR AS IS AND DIVERT TO CRP. MAINT FOUND THE LNDG GEAR LEVER SOLENOID DEFECTIVE AND IT WAS REPLACED. HE ALSO SAID THE FLT OPS MANUAL IS NOT TO CLR ON THIS SIT.
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.