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A DC9-30 on approach at 4000 ft declared an emergency due to failure of the nose gear to extend normally. Gear extended manually.
| Attributes | |
| ACN | 441369 |
| Time | |
| Date | 199906 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : msp.airport |
| State Reference | MN |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : m98.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : instrument pilot : multi engine pilot : private pilot : flight engineer |
| Experience | flight time last 90 days : 180 flight time total : 12000 flight time type : 10000 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : nose gear position indication other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Nose gear didn't extend upon approach into msp. Approach was discontinued, emergency procedures were started, dispatch and maintenance control were contacted. An emergency was declared. The emergency gear extension worked. A safe landing was made on runway 12L msp. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a DC9-30 and the nose landing gear failed to extend in the normal hydraulic mode. The reporter said the landing gear was extended using the emergency manual system. The reporter said that the cause of the gear staying locked up in the normal mode is unknown as maintenance has not reported the corrective action.
Original NASA ASRS Text
Title: A DC9-30 ON APCH AT 4000 FT DECLARED AN EMER DUE TO FAILURE OF THE NOSE GEAR TO EXTEND NORMALLY. GEAR EXTENDED MANUALLY.
Narrative: NOSE GEAR DIDN'T EXTEND UPON APCH INTO MSP. APCH WAS DISCONTINUED, EMER PROCS WERE STARTED, DISPATCH AND MAINT CTL WERE CONTACTED. AN EMER WAS DECLARED. THE EMER GEAR EXTENSION WORKED. A SAFE LNDG WAS MADE ON RWY 12L MSP. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A DC9-30 AND THE NOSE LNDG GEAR FAILED TO EXTEND IN THE NORMAL HYD MODE. THE RPTR SAID THE LNDG GEAR WAS EXTENDED USING THE EMER MANUAL SYS. THE RPTR SAID THAT THE CAUSE OF THE GEAR STAYING LOCKED UP IN THE NORMAL MODE IS UNKNOWN AS MAINT HAS NOT RPTED THE CORRECTIVE ACTION.
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.