<< >> NASA ASRS Report 777240, February 2008

Unforecast below minimums WX at destination requires diversion to an airport not authorized for the aircraft.

Attributes
ACN	777240
Time
Date	200802
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Operator	common carrier : air carrier
Make Model Name	Large Transport
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival : holding pattern
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 140 flight time total : 6100 flight time type : 100
ASRS Report	777240
Events
Anomaly	inflight encounter : weather other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : diverted to another airport
Supplementary
Problem Areas	Company Weather
Primary Problem	Company

Narrative:

About 25 mins out from ZZZ we obtained the ATIS for ZZZ; which indicated 1/4 mi visibility; indefinite ceiling 200 ft and freezing fog. We were dispatched without an alternate or alternate fuel due to forecasted WX well above requirements for alternate. We contacted dispatch while being placed in present position hold by ATC. The captain and dispatch explored several options and either the WX was below minimums or the fields were too far away given the fuel we currently had on board. Given our fuel situation; it was determined that ZZZ1 was the safest airport to divert to. The WX at ZZZ1 was clear skies and 10 mi visibility. Landing was uneventful. Departure after we had cleared at cmh was delayed due to receiving performance calculations from headquarters. This was because ZZZ1 was not in our operation specifications; therefore not in our efb.

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Original NASA ASRS Text

Title: UNFORECAST BELOW MINIMUMS WX AT DESTINATION REQUIRES DIVERSION TO AN ARPT NOT AUTHORIZED FOR THE ACFT.

Narrative: ABOUT 25 MINS OUT FROM ZZZ WE OBTAINED THE ATIS FOR ZZZ; WHICH INDICATED 1/4 MI VISIBILITY; INDEFINITE CEILING 200 FT AND FREEZING FOG. WE WERE DISPATCHED WITHOUT AN ALTERNATE OR ALTERNATE FUEL DUE TO FORECASTED WX WELL ABOVE REQUIREMENTS FOR ALTERNATE. WE CONTACTED DISPATCH WHILE BEING PLACED IN PRESENT POS HOLD BY ATC. THE CAPT AND DISPATCH EXPLORED SEVERAL OPTIONS AND EITHER THE WX WAS BELOW MINIMUMS OR THE FIELDS WERE TOO FAR AWAY GIVEN THE FUEL WE CURRENTLY HAD ON BOARD. GIVEN OUR FUEL SITUATION; IT WAS DETERMINED THAT ZZZ1 WAS THE SAFEST ARPT TO DIVERT TO. THE WX AT ZZZ1 WAS CLR SKIES AND 10 MI VISIBILITY. LNDG WAS UNEVENTFUL. DEP AFTER WE HAD CLRED AT CMH WAS DELAYED DUE TO RECEIVING PERFORMANCE CALCULATIONS FROM HEADQUARTERS. THIS WAS BECAUSE ZZZ1 WAS NOT IN OUR OP SPECS; THEREFORE NOT IN OUR EFB.

Data retrieved from NASA's ASRS site as of May 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.