|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : isp|
|Altitude||msl bound lower : 1700|
msl bound upper : 2000
|Controlling Facilities||tracon : n90|
|Operator||general aviation : personal|
|Make Model Name||Small Aircraft, Low Wing, 1 Eng, Retractable Gear|
|Flight Phase||descent : approach|
|Function||flight crew : single pilot|
|Qualification||pilot : commercial|
pilot : cfi
pilot : instrument
|Experience||flight time last 90 days : 40|
flight time total : 1500
flight time type : 30
|Affiliation||government : faa|
|Function||controller : approach|
|Qualification||controller : radar|
|Anomaly||aircraft equipment problem : less severe|
altitude deviation : overshoot
non adherence : clearance
|Independent Detector||aircraft equipment other aircraft equipment : unspecified|
other flight crewa
|Resolutory Action||flight crew : returned to intended course or assigned course|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
While being vectored for ILS 6 into islip, I attempted to lower landing gear and did not get '3 green' (landing gear down and locked) indication. ATC clearance: maintain 2000 until established. Due to concern with gear, inadvertently descended to 1700 ft (note: ATC advised of altitude as I was returning to assigned altitude) then recovered. Tower verified gear down, returned to republic airport and landed without incident. When on ground, discovered that reason for not getting '3 green lights' was due to fact that navigation lights were on (small aircraft sel) and lights cannot be seen in daylight. Landing gear lights should show up in daylight even with navigation lights on!
Original NASA ASRS Text
Title: PLT OF AN SMA SEL ACFT DSNDED BELOW ASSIGNED VECTORING ALT DUE TO THE DISTR OF NOT OBSERVING LNDG GEAR DOWN INDICATION LIGHTS.
Narrative: WHILE BEING VECTORED FOR ILS 6 INTO ISLIP, I ATTEMPTED TO LOWER LNDG GEAR AND DID NOT GET '3 GREEN' (LNDG GEAR DOWN AND LOCKED) INDICATION. ATC CLRNC: MAINTAIN 2000 UNTIL ESTABLISHED. DUE TO CONCERN WITH GEAR, INADVERTENTLY DSNDED TO 1700 FT (NOTE: ATC ADVISED OF ALT AS I WAS RETURNING TO ASSIGNED ALT) THEN RECOVERED. TWR VERIFIED GEAR DOWN, RETURNED TO REPUBLIC ARPT AND LANDED WITHOUT INCIDENT. WHEN ON GND, DISCOVERED THAT REASON FOR NOT GETTING '3 GREEN LIGHTS' WAS DUE TO FACT THAT NAV LIGHTS WERE ON (SMA SEL) AND LIGHTS CANNOT BE SEEN IN DAYLIGHT. LNDG GEAR LIGHTS SHOULD SHOW UP IN DAYLIGHT EVEN WITH NAV LIGHTS ON!
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.