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An md-83 flight crew was unable to comply with a speed restriction given by approach control when the slats failed to extend when selected. ATC acted peremptorily and assigned them to another runway; thus increasing their workload at a time their attention to a flight control issue was their first priority.
| Attributes | |
| ACN | 1001594 |
| Time | |
| Date | 201203 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Flap Control (Trailing & Leading Edge) |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Events | |
| Anomaly | ATC Issue All Types Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Speed All Types |
Narrative:
Receiving vectors to land xxr; ATC asked us to slow to 210 KTS. Extended slats; autopilot and autothrottles disconnected and slat disagree light illuminated; unable to slow to 210 until we referred to QRH checklist. Told ATC that we were still 230 KIAS and controller lost his cool and changed vectors for us to land on xxl. We calmly told him that we had an indication of a flight control malfunction; couldn't slow to 210 KIAS and were working a checklist. Controller made mention that he had to annotate why we refused to slow down. As we started the QRH checklist; slat disagree light extinguished; ap/ats were reinstated; QRH said to continue with normal procedures and we slowed; landing uneventful. If we tell a controller we're unable to slow to 210 KIAS then there probably is a good reason for it. We were busy diagnosing a problem; referring to the QRH and briefly told the controller we couldn't slow. A little leeway on his part would have been appreciated.
Original NASA ASRS Text
Title: An MD-83 flight crew was unable to comply with a speed restriction given by Approach Control when the slats failed to extend when selected. ATC acted peremptorily and assigned them to another runway; thus increasing their workload at a time their attention to a flight control issue was their first priority.
Narrative: Receiving vectors to land XXR; ATC asked us to slow to 210 KTS. Extended slats; autopilot and autothrottles disconnected and slat disagree light illuminated; unable to slow to 210 until we referred to QRH checklist. Told ATC that we were still 230 KIAS and Controller lost his cool and changed vectors for us to land on XXL. We calmly told him that we had an indication of a flight control malfunction; couldn't slow to 210 KIAS and were working a checklist. Controller made mention that he had to annotate why we refused to slow down. As we started the QRH checklist; slat disagree light extinguished; AP/ATS were reinstated; QRH said to continue with normal procedures and we slowed; landing uneventful. If we tell a controller we're unable to slow to 210 KIAS then there probably is a good reason for it. We were busy diagnosing a problem; referring to the QRH and briefly told the Controller we couldn't slow. A little leeway on his part would have been appreciated.
Data retrieved from NASA's ASRS site as of July 2013 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.