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The tailcone was accidentally jettisoned and the escape slide inflated, when the ground crew tried to put out the aft stairs for passenger unloading.
| Attributes | |
| ACN | 278172 |
| Time | |
| Date | 199407 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : okc |
| State Reference | OK |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 15600 flight time type : 1450 |
| ASRS Report | 278172 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
After arriving at gate in okc on flight at XA14 local time, the agent was unable to move jetway due to a flat tire. It was decided to use aft stairs to deplane passenger. The contract ground personnel confirmed that they knew how to lower aft stairs. However, instead of lowering aft stairs, they activated the emergency exit for tailcone jettison, which resulted in the tailcone separating from the aircraft. The emergency exit slide was also deployed and inflated. The cause of problem was lack of training of the contract ground personnel on this type of aircraft (dc-9).
Original NASA ASRS Text
Title: THE TAILCONE WAS ACCIDENTALLY JETTISONED AND THE ESCAPE SLIDE INFLATED, WHEN THE GND CREW TRIED TO PUT OUT THE AFT STAIRS FOR PAX UNLOADING.
Narrative: AFTER ARRIVING AT GATE IN OKC ON FLT AT XA14 LCL TIME, THE AGENT WAS UNABLE TO MOVE JETWAY DUE TO A FLAT TIRE. IT WAS DECIDED TO USE AFT STAIRS TO DEPLANE PAX. THE CONTRACT GND PERSONNEL CONFIRMED THAT THEY KNEW HOW TO LOWER AFT STAIRS. HOWEVER, INSTEAD OF LOWERING AFT STAIRS, THEY ACTIVATED THE EMER EXIT FOR TAILCONE JETTISON, WHICH RESULTED IN THE TAILCONE SEPARATING FROM THE ACFT. THE EMER EXIT SLIDE WAS ALSO DEPLOYED AND INFLATED. THE CAUSE OF PROB WAS LACK OF TRAINING OF THE CONTRACT GND PERSONNEL ON THIS TYPE OF ACFT (DC-9).
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.