Incident · 2011-03-11
What the record says
- Event date
- 2011-03-11
- Event type
- Incident
- Highest injury level
- No injuries
- Aircraft
- BOEING 757-232 (N693DL)
- Operating rule
- Part 121
- Operator
- DELTA AIR LINES, INC. Operator named in NTSB report
- Operated by (per NTSB report)
- Delta Airlines
Probable cause
The air traffic controllers’ failure to adhere to required radar identification procedures, which resulted in loss of separation between the departing Boeing 757 and three other airplanes. Contributing to the incident was the pilots’ inadequate preflight checks, which resulted in the airplane departing with an inoperative transponder.
Source: NTSB case OPS11IA410Flight crew
Certification and experience as recorded in the NTSB accident database for this event. The NTSB records these facts about the crew's flying history; GroundCheck shows them as filed, without names or identities.
| Role | Certificate | Instrument rating | Age | Medical | Flight hours |
|---|---|---|---|---|---|
| Pilot | — | — | — | Unknown | — |
| Co-pilot | — | — | — | Unknown | — |
Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.