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Air carrier large transport had to make a go around when the flight crew could not confirm the nose gear was down and locked.
| Attributes | |
| ACN | 158519 |
| Time | |
| Date | 199010 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : nas |
| State Reference | FO |
| Altitude | msl bound lower : 1500 msl bound upper : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : nas |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other landing : go around other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 4890 flight time type : 1395 |
| ASRS Report | 158519 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
When configuring for landing (1500' AGL) the second officer noted that we did not have a green light indication for the nose gear. I checked the indicator with the test switch and the light still did not come on. I changed the light bulbs in the indicator but we still couldn't get a good indication. The second officer went to the main cabin to visly check the nose gear but was unable to accomplish the visibility check prior to the captain executing a go around. As we flew by the control tower we had them visly confirm that the gear was extended. The second officer then visly checked that the gear was down and locked. As we maneuvered for another vus approach I selected bright and dim several times on the test switch and we finally got a green light indication. The landing was uneventful and the system was written up in the aircraft logbook.
Original NASA ASRS Text
Title: ACR LGT HAD TO MAKE A GO AROUND WHEN THE FLT CREW COULD NOT CONFIRM THE NOSE GEAR WAS DOWN AND LOCKED.
Narrative: WHEN CONFIGURING FOR LNDG (1500' AGL) THE S/O NOTED THAT WE DID NOT HAVE A GREEN LIGHT INDICATION FOR THE NOSE GEAR. I CHKED THE INDICATOR WITH THE TEST SWITCH AND THE LIGHT STILL DID NOT COME ON. I CHANGED THE LIGHT BULBS IN THE INDICATOR BUT WE STILL COULDN'T GET A GOOD INDICATION. THE S/O WENT TO THE MAIN CABIN TO VISLY CHK THE NOSE GEAR BUT WAS UNABLE TO ACCOMPLISH THE VIS CHK PRIOR TO THE CAPT EXECUTING A GO AROUND. AS WE FLEW BY THE CTL TWR WE HAD THEM VISLY CONFIRM THAT THE GEAR WAS EXTENDED. THE S/O THEN VISLY CHKED THAT THE GEAR WAS DOWN AND LOCKED. AS WE MANEUVERED FOR ANOTHER VUS APCH I SELECTED BRIGHT AND DIM SEVERAL TIMES ON THE TEST SWITCH AND WE FINALLY GOT A GREEN LIGHT INDICATION. THE LNDG WAS UNEVENTFUL AND THE SYS WAS WRITTEN UP IN THE ACFT LOGBOOK.
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.