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Apparent loss of separation between a departing DC9 and a B727 which had run off the end of the runway with the tail protruding over the same runway.
| Attributes | |
| ACN | 398586 |
| Time | |
| Date | 199803 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dsm |
| State Reference | IA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tower : dsm |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Route In Use | departure other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground other : taxi landing other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 18000 flight time type : 12000 |
| ASRS Report | 398586 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : ground less severe non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 4000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Taxi out dsm, told to hold short of runway for landing B727. Held short. (Ceiling 100 ft, visibility 1/2 mi.) observed B727 land. Cleared into position to hold. Tower told landed B727 to contact ground. No response from B727. Tower cleared us for takeoff. On takeoff roll at V1 and 4000 ft from departure end of runway, observed what appeared to be the tail of the B727 protruding over the departure end of the runway. Continued rotation for takeoff uneventfully. After takeoff, heard B727 call tower and state that they had run off end of runway. Tower then told me to contact departure. No conflict, as events occurred, but possible conflict if I had aborted with a 'balanced field' performance situation.
Original NASA ASRS Text
Title: APPARENT LOSS OF SEPARATION BTWN A DEPARTING DC9 AND A B727 WHICH HAD RUN OFF THE END OF THE RWY WITH THE TAIL PROTRUDING OVER THE SAME RWY.
Narrative: TAXI OUT DSM, TOLD TO HOLD SHORT OF RWY FOR LNDG B727. HELD SHORT. (CEILING 100 FT, VISIBILITY 1/2 MI.) OBSERVED B727 LAND. CLRED INTO POS TO HOLD. TWR TOLD LANDED B727 TO CONTACT GND. NO RESPONSE FROM B727. TWR CLRED US FOR TKOF. ON TKOF ROLL AT V1 AND 4000 FT FROM DEP END OF RWY, OBSERVED WHAT APPEARED TO BE THE TAIL OF THE B727 PROTRUDING OVER THE DEP END OF THE RWY. CONTINUED ROTATION FOR TKOF UNEVENTFULLY. AFTER TKOF, HEARD B727 CALL TWR AND STATE THAT THEY HAD RUN OFF END OF RWY. TWR THEN TOLD ME TO CONTACT DEP. NO CONFLICT, AS EVENTS OCCURRED, BUT POSSIBLE CONFLICT IF I HAD ABORTED WITH A 'BALANCED FIELD' PERFORMANCE SIT.
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.