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Commuter light transport dispatched to an airport when WX was reported below landing mins and forecast to be below landing mins at time of arrival.
| Attributes | |
| ACN | 189769 |
| Time | |
| Date | 199109 |
| Day | Fri |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | CA |
| 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 |
| Flight Phase | climbout : takeoff ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 240 flight time total : 2400 flight time type : 1500 |
| ASRS Report | 189769 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
The WX at our destination was W1 X 1/4 F and visual range was 1000 variable 2600. Forecast was C2 X 1/4 F. The captain said based on RVR (which governs) he interpreted the 1000 variable 2600 (visual range) to be okay to launch. I said I thought it needed to be 1800 or above excluding variable; or we could file to another airport and then check WX en route and go from there. He said that we could do that but he was positive that the variable was a 'combination thereof' of reported and forecast WX and it was good enough. Since we carried enough fuel for the flight plus alternate plus reserve, I felt absolutely no compromise on safety was made. I would appreciate your interpretation on far 135.219 in this case and an overall interpretation of this far.
Original NASA ASRS Text
Title: COMMUTER LTT DISPATCHED TO AN ARPT WHEN WX WAS RPTED BELOW LNDG MINS AND FORECAST TO BE BELOW LNDG MINS AT TIME OF ARR.
Narrative: THE WX AT OUR DEST WAS W1 X 1/4 F AND VISUAL RANGE WAS 1000 VARIABLE 2600. FORECAST WAS C2 X 1/4 F. THE CAPT SAID BASED ON RVR (WHICH GOVERNS) HE INTERPRETED THE 1000 VARIABLE 2600 (VISUAL RANGE) TO BE OKAY TO LAUNCH. I SAID I THOUGHT IT NEEDED TO BE 1800 OR ABOVE EXCLUDING VARIABLE; OR WE COULD FILE TO ANOTHER ARPT AND THEN CHK WX ENRTE AND GO FROM THERE. HE SAID THAT WE COULD DO THAT BUT HE WAS POSITIVE THAT THE VARIABLE WAS A 'COMBINATION THEREOF' OF RPTED AND FORECAST WX AND IT WAS GOOD ENOUGH. SINCE WE CARRIED ENOUGH FUEL FOR THE FLT PLUS ALTERNATE PLUS RESERVE, I FELT ABSOLUTELY NO COMPROMISE ON SAFETY WAS MADE. I WOULD APPRECIATE YOUR INTERPRETATION ON FAR 135.219 IN THIS CASE AND AN OVERALL INTERPRETATION OF THIS FAR.
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.