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B737-500 flight crew reports anomalous nose landing gear indication during descent. Landing gear extends normally and is verified visually by deadheading crew member.
| Attributes | |
| ACN | 751982 |
| Time | |
| Date | 200708 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 10000 |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 580 flight time total : 20000 flight time type : 15000 |
| ASRS Report | 751892 |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : nose gear indication other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On descent to ZZZ nose gear down green light was on with red nose gear light with gear up. Talked to maintenance and he agreed it was an indication problem and that he was confident the gear would extend; but we should of course verify this with the nose gear viewer. I knew a captain that was riding in the cabin and had the flight attendant have him come up to the cockpit to help us look through the viewer on approach and also help us if we had any further problems. After gear extension he was having problems positioning himself to see into the view port and momentarily opened the cockpit door to verify that the arrows were lined up. Arrows were lined up and cockpit indications were normal. Landed normally.
Original NASA ASRS Text
Title: B737-500 FLT CREW REPORTS ANOMALOUS NOSE LANDING GEAR INDICATION DURING DESCENT. LANDING GEAR EXTENDS NORMALLY AND IS VERIFIED VISUALLY BY DEADHEADING CREW MEMBER.
Narrative: ON DSCNT TO ZZZ NOSE GEAR DOWN GREEN LIGHT WAS ON WITH RED NOSE GEAR LIGHT WITH GEAR UP. TALKED TO MAINT AND HE AGREED IT WAS AN INDICATION PROB AND THAT HE WAS CONFIDENT THE GEAR WOULD EXTEND; BUT WE SHOULD OF COURSE VERIFY THIS WITH THE NOSE GEAR VIEWER. I KNEW A CAPT THAT WAS RIDING IN THE CABIN AND HAD THE FLT ATTENDANT HAVE HIM COME UP TO THE COCKPIT TO HELP US LOOK THROUGH THE VIEWER ON APCH AND ALSO HELP US IF WE HAD ANY FURTHER PROBS. AFTER GEAR EXTENSION HE WAS HAVING PROBS POSITIONING HIMSELF TO SEE INTO THE VIEW PORT AND MOMENTARILY OPENED THE COCKPIT DOOR TO VERIFY THAT THE ARROWS WERE LINED UP. ARROWS WERE LINED UP AND COCKPIT INDICATIONS WERE NORMAL. LANDED NORMALLY.
Data retrieved from NASA's ASRS site as of January 2009 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.