 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
MD83 captain experiences a slat disagree indication during approach to an airport with a short wet runway. Unable to correct the problem the crew elects to divert to an airport with longer runways. This aircraft had a history of slat disagree messages.
| Attributes | |
| ACN | 928332 |
| Time | |
| Date | 201101 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Leading Edge Slat |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Upon extending the flaps from the 11 degree to 15 degree position; the aircraft experienced a slat disagree indication. This indication was followed by an alpha speed indication with speeds greater than 25 knots above normal weight and configuration alpha speed. The event occurred while configuring and being vectored for the ILS. Repeat problem on this aircraft. QRH procedure was run and the problem remained. Due to the short wet runway and reduced visibility; we elected to divert. We declared an emergency for priority handling enroute to our diversion airport as well as to have crash fire rescue equipment standing by with our planned increased landing speed. At our weight; our vref speed was to be 154 knots. We were unable to get in touch with the station on the in range call; or while holding over the airport. Numerous attempts to get a hold of the station went unanswered. Our dispatcher did an outstanding job of organizing the diversion and we had no delays getting into a gate or getting assistance to our passengers.
Original NASA ASRS Text
Title: MD83 Captain experiences a SLAT DISAGREE indication during approach to an airport with a short wet runway. Unable to correct the problem the crew elects to divert to an airport with longer runways. This aircraft had a history of SLAT DISAGREE messages.
Narrative: Upon extending the flaps from the 11 degree to 15 degree position; the aircraft experienced a SLAT DISAGREE indication. This indication was followed by an ALPHA speed indication with speeds greater than 25 knots above normal weight and configuration ALPHA speed. The event occurred while configuring and being vectored for the ILS. Repeat problem on this aircraft. QRH procedure was run and the problem remained. Due to the short wet runway and reduced visibility; we elected to divert. We declared an emergency for priority handling enroute to our diversion airport as well as to have CFR standing by with our planned increased landing speed. At our weight; our VREF speed was to be 154 knots. We were unable to get in touch with the station on the in range call; or while holding over the airport. Numerous attempts to get a hold of the station went unanswered. Our dispatcher did an outstanding job of organizing the diversion and we had no delays getting into a gate or getting assistance to our passengers.
Data retrieved from NASA's ASRS site as of April 2012 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.