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A commuter pilot asserts that his 'blue-blocker' sunglasses, whatever they are, blocked the blue indicating lights for engine anti-ice annunciation.
| Attributes | |
| ACN | 218514 |
| Time | |
| Date | 199207 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : jfk |
| State Reference | NY |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Navigation In Use | Other |
| Flight Phase | ground : parked other |
| 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 : 3200 flight time type : 120 |
| ASRS Report | 218514 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | non adherence other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
In cruise flight aircraft entered an area of icing conditions. Per aircraft procedure, engine anti-ice was selected. On descent, aircraft left icing conditions. On ground during shut down I took my blue blocker sunglasses off and noticed the 2 blue engine anti-ice status lights on the center panel were on indicating engine anti-ice was still on. The sunglasses blocked the blue light from the engine anti-ice light bulb making it appear the system was off. This is not the only system in the aircraft that has blue lights associated with them. Several of the EFIS displays have blue marking for navigation and ILS landing system indications, ie, OM. While this occurrence posed little safety hazard the potential is there for further safety problems. Several pilot sunglasses use the blue light blocking technology and many pilots may use these glasses unwittingly.
Original NASA ASRS Text
Title: A COMMUTER PLT ASSERTS THAT HIS 'BLUE-BLOCKER' SUNGLASSES, WHATEVER THEY ARE, BLOCKED THE BLUE INDICATING LIGHTS FOR ENG ANTI-ICE ANNUNCIATION.
Narrative: IN CRUISE FLT ACFT ENTERED AN AREA OF ICING CONDITIONS. PER ACFT PROC, ENG ANTI-ICE WAS SELECTED. ON DSCNT, ACFT LEFT ICING CONDITIONS. ON GND DURING SHUT DOWN I TOOK MY BLUE BLOCKER SUNGLASSES OFF AND NOTICED THE 2 BLUE ENG ANTI-ICE STATUS LIGHTS ON THE CTR PANEL WERE ON INDICATING ENG ANTI-ICE WAS STILL ON. THE SUNGLASSES BLOCKED THE BLUE LIGHT FROM THE ENG ANTI-ICE LIGHT BULB MAKING IT APPEAR THE SYS WAS OFF. THIS IS NOT THE ONLY SYS IN THE ACFT THAT HAS BLUE LIGHTS ASSOCIATED WITH THEM. SEVERAL OF THE EFIS DISPLAYS HAVE BLUE MARKING FOR NAV AND ILS LNDG SYS INDICATIONS, IE, OM. WHILE THIS OCCURRENCE POSED LITTLE SAFETY HAZARD THE POTENTIAL IS THERE FOR FURTHER SAFETY PROBLEMS. SEVERAL PLT SUNGLASSES USE THE BLUE LIGHT BLOCKING TECHNOLOGY AND MANY PLTS MAY USE THESE GLASSES UNWITTINGLY.
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.