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B737-500 dispatcher did not assign a destination alternate in non compliance with alternate WX requirements.
| Attributes | |
| ACN | 565977 |
| Time | |
| Date | 200211 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ric.airport |
| State Reference | VA |
| Altitude | agl single value : 0 |
| Environment | |
| Weather Elements | other |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| ASRS Report | 565977 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| Events | |
| Anomaly | inflight encounter : weather non adherence : published procedure non adherence : far non adherence : company policies other anomaly other |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Supplementary | |
| Problem Areas | Weather Flight Crew Human Performance Company |
| Primary Problem | Company |
Narrative:
Flight XXXX ord-ric departed ord at XB47Z. New ric XB00 forecast was entered first at approximately XA20Z, and did not require alternate for flight. Approximately 19 mins later, ric forecast was amended and entered again at approximately XA39Z, with (temporary XB16 4 SM rainshowers, broken 1200, overcast 5000) and station requiring an alternate. Shift turnover occurred at approximately XA50Z, and amendment to forecast went unnoticed during shift changeover. Flight XXXX departed to ric at XB47Z without alternate. Ric WX fluctuated with ceilings till about XC00Z, but sequence was missed by dispatcher on duty at time. Another amendment to ric forecast occurred at XD22Z (went into system at approximately XD26Z) 006 broken in main body of forecast till XF00Z which drew attention to review ric WX again, and at this time ric WX was 600 overcast 9 mi, but did not contact flight at this time due to flight appeared to be close to scheduled landing time. Flight landed ric without alternate that was required.
Original NASA ASRS Text
Title: B737-500 DISPATCHER DID NOT ASSIGN A DEST ALTERNATE IN NON COMPLIANCE WITH ALTERNATE WX REQUIREMENTS.
Narrative: FLT XXXX ORD-RIC DEPARTED ORD AT XB47Z. NEW RIC XB00 FORECAST WAS ENTERED FIRST AT APPROX XA20Z, AND DID NOT REQUIRE ALTERNATE FOR FLT. APPROX 19 MINS LATER, RIC FORECAST WAS AMENDED AND ENTERED AGAIN AT APPROX XA39Z, WITH (TEMPORARY XB16 4 SM RAINSHOWERS, BROKEN 1200, OVCST 5000) AND STATION REQUIRING AN ALTERNATE. SHIFT TURNOVER OCCURRED AT APPROX XA50Z, AND AMENDMENT TO FORECAST WENT UNNOTICED DURING SHIFT CHANGEOVER. FLT XXXX DEPARTED TO RIC AT XB47Z WITHOUT ALTERNATE. RIC WX FLUCTUATED WITH CEILINGS TILL ABOUT XC00Z, BUT SEQUENCE WAS MISSED BY DISPATCHER ON DUTY AT TIME. ANOTHER AMENDMENT TO RIC FORECAST OCCURRED AT XD22Z (WENT INTO SYS AT APPROX XD26Z) 006 BROKEN IN MAIN BODY OF FORECAST TILL XF00Z WHICH DREW ATTN TO REVIEW RIC WX AGAIN, AND AT THIS TIME RIC WX WAS 600 OVCST 9 MI, BUT DID NOT CONTACT FLT AT THIS TIME DUE TO FLT APPEARED TO BE CLOSE TO SCHEDULED LNDG TIME. FLT LANDED RIC WITHOUT ALTERNATE THAT WAS REQUIRED.
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.