Accident · 2011-04-01
What the record says
- Event date
- 2011-04-01
- Event type
- Accident
- Highest injury level
- Minor injury
- Aircraft
- BOEING 737 (N632SW)
- Operating rule
- Part 121
- Operator
- SOUTHWEST AIRLINES, CO. Operator named in NTSB report
- Operated by (per NTSB report)
- SOUTHWEST AIRLINES CO
Probable cause
the improper installation of the fuselage crown skin panel at the S-4L lap joint during the manufacturing process, which resulted in multiple site damage fatigue cracking and eventual failure of the lower skin panel. Contributing to the injuries was flight attendant A's incorrect assessment of his time of useful consciousness, which led to his failure to follow procedures requiring immediate donning of an oxygen mask when cabin pressure is lost.
Source: NTSB case DCA11MA039Flight crew
No flight-crew details recorded in the NTSB accident database for this event.
Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.