37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 121363 |
Time | |
Date | 198908 |
Day | Thu |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | airport : bfl |
State Reference | CA |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | IMC |
Light | Night |
Aircraft 1 | |
Operator | general aviation : corporate |
Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
Flight Phase | landing other |
Flight Plan | IFR |
Person 1 | |
Affiliation | Other |
Function | flight crew : captain oversight : pic |
Qualification | pilot : instrument pilot : cfi pilot : atp |
Experience | flight time last 90 days : 300 flight time total : 2500 flight time type : 300 |
ASRS Report | 121361 |
Person 2 | |
Affiliation | Other |
Function | flight crew : first officer |
Qualification | pilot : instrument pilot : commercial |
Events | |
Anomaly | other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | none taken : unable |
Consequence | Other |
Supplementary | |
Primary Problem | Chart Or Publication |
Air Traffic Incident | other |
Situations | |
Airport | other physical facility |
Narrative:
Bfl ILS 30R minimums to 200 and 1/2 are predicated on an approach light system which is entirely behind you when you break out if ceiling/visibility is below 400 and 1. This is because of a displaced threshold (and glide slope transmitter) of nearly 3500'. This creates a 'black hole' even if you do see ALS. How can minimums published at 200 and 1/2 be justified when the ALS is virtually useless when WX makes it most important? There is no in-runway lighting (TDZ or cl) and ALS is medium intensity. What justifies flying over 3500' of pavement (plus 800' stopway)?
Original NASA ASRS Text
Title: REPORTER APPARENTLY OBJECTING TO LACK OF CENTERLINE LIGHTING ON RWY BUT APPROVED FOR CAT II APCHES WITH A DISPLACED THRESHOLD.
Narrative: BFL ILS 30R MINIMUMS TO 200 AND 1/2 ARE PREDICATED ON AN APCH LIGHT SYSTEM WHICH IS ENTIRELY BEHIND YOU WHEN YOU BREAK OUT IF CEILING/VISIBILITY IS BELOW 400 AND 1. THIS IS BECAUSE OF A DISPLACED THRESHOLD (AND GLIDE SLOPE TRANSMITTER) OF NEARLY 3500'. THIS CREATES A 'BLACK HOLE' EVEN IF YOU DO SEE ALS. HOW CAN MINIMUMS PUBLISHED AT 200 AND 1/2 BE JUSTIFIED WHEN THE ALS IS VIRTUALLY USELESS WHEN WX MAKES IT MOST IMPORTANT? THERE IS NO IN-RWY LIGHTING (TDZ OR CL) AND ALS IS MEDIUM INTENSITY. WHAT JUSTIFIES FLYING OVER 3500' OF PAVEMENT (PLUS 800' STOPWAY)?
Data retrieved from NASA's ASRS site as of August 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.