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A saab 340 on approach at 2000 ft declared an emergency due to the landing gear unsafe light illuminated, caused by a landing gear position sensor.
| Attributes | |
| ACN | 409684 |
| Time | |
| Date | 199807 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dtw |
| State Reference | MI |
| Altitude | msl bound lower : 2000 msl bound upper : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : dtw |
| Operator | common carrier : air carrier |
| Make Model Name | SF 340B |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other |
| 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 |
| Experience | flight time last 90 days : 100 flight time total : 3300 flight time type : 900 |
| ASRS Report | 409684 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
On approach to landing I experienced a landing gear unsafe condition. After complying with the checklist I requested crash fire rescue equipment standing by for landing. I landed the aircraft without incident. Callback conversation with reporter revealed the following information: the reporter stated the maintenance manager advised the reporter the landing gear problem was an indicator failure and not mechanical. The reporter said it may have been a gear position sensor failure or sensor out of adjustment. However, the position or gear location was unknown.
Original NASA ASRS Text
Title: A SAAB 340 ON APCH AT 2000 FT DECLARED AN EMER DUE TO THE LNDG GEAR UNSAFE LIGHT ILLUMINATED, CAUSED BY A LNDG GEAR POS SENSOR.
Narrative: ON APCH TO LNDG I EXPERIENCED A LNDG GEAR UNSAFE CONDITION. AFTER COMPLYING WITH THE CHKLIST I REQUESTED CFR STANDING BY FOR LNDG. I LANDED THE ACFT WITHOUT INCIDENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE MAINT MGR ADVISED THE RPTR THE LNDG GEAR PROB WAS AN INDICATOR FAILURE AND NOT MECHANICAL. THE RPTR SAID IT MAY HAVE BEEN A GEAR POS SENSOR FAILURE OR SENSOR OUT OF ADJUSTMENT. HOWEVER, THE POS OR GEAR LOCATION WAS UNKNOWN.
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.