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A B727 in takeoff climb at 1200 ft diverted and dumped fuel due to #5 slat in transit light on in retracted position.
| Attributes | |
| ACN | 497613 |
| Time | |
| Date | 200101 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bil.airport |
| State Reference | MT |
| Altitude | agl single value : 1200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bil.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Route In Use | departure : other published ifr departure |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 160 flight time total : 10200 flight time type : 480 |
| ASRS Report | 497613 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : slat flap indication other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : diverted to another airport |
| Consequence | other |
| Supplementary | |
| Problem Areas | Company Aircraft |
| Primary Problem | Company |
Narrative:
Shortly after takeoff from bil at approximately 1200 ft AGL, we retracted the flaps to 2 degrees, at which time we got a flap unsafe light showing that the #5 leading edge slat was in transit and not fully retracted. At that time we redeployed the flaps to 5 degrees, at which time the unsafe indication went out. We then tried to retract the flaps to 2 degrees and got the same indication as before. At that time, we notified ATC that we had a problem and would like to dump fuel and return to the field. We kept the flaps at 5 degrees until on final then extended them normally and landed without incident. After landing, the mechanic found a fuel panel had jammed the #5 slat.
Original NASA ASRS Text
Title: A B727 IN TKOF CLB AT 1200 FT DIVERTED AND DUMPED FUEL DUE TO #5 SLAT IN TRANSIT LIGHT ON IN RETRACTED POS.
Narrative: SHORTLY AFTER TKOF FROM BIL AT APPROX 1200 FT AGL, WE RETRACTED THE FLAPS TO 2 DEGS, AT WHICH TIME WE GOT A FLAP UNSAFE LIGHT SHOWING THAT THE #5 LEADING EDGE SLAT WAS IN TRANSIT AND NOT FULLY RETRACTED. AT THAT TIME WE REDEPLOYED THE FLAPS TO 5 DEGS, AT WHICH TIME THE UNSAFE INDICATION WENT OUT. WE THEN TRIED TO RETRACT THE FLAPS TO 2 DEGS AND GOT THE SAME INDICATION AS BEFORE. AT THAT TIME, WE NOTIFIED ATC THAT WE HAD A PROB AND WOULD LIKE TO DUMP FUEL AND RETURN TO THE FIELD. WE KEPT THE FLAPS AT 5 DEGS UNTIL ON FINAL THEN EXTENDED THEM NORMALLY AND LANDED WITHOUT INCIDENT. AFTER LNDG, THE MECH FOUND A FUEL PANEL HAD JAMMED THE #5 SLAT.
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.