- Date
- May 29, 1991, 13:00 local (18:00 UTC)
- Place
- Kansas City, MO
- Injuries
- 6 minor, 40 uninjured
- Damage
- No damage
- Phase of flight
- Enroute
- Aircraft
- N933MLDouglas DC-9-32
- Weather
- Day
- Status
- Completed · report May 5, 1993
- Report
- Approved by Office Director
- FAA report
- 19910529022919I
- Case key
- 14930
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
Probable cause
Inadequate design by the manufacturers. Factors associated with the incident are inadequate certification/approval by the federal aviation administration and clear air turbulence.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The incident airplane encountered clear air turbulence while flying in visual meteorological conditions at 10,000' MSL. The airplane was not damaged during the encounter and the seat belt sign was on. Shortly after the encounter the captain was advised by the cabin crew that there had been injuries in the cabin during the turbulence. The flight continued to its destination where it was met by paramedics. Six persons, three flight attendants and three passengers, were transported to a local hospital, treated for minor injuries and released. One passenger seat belt separated from its attachment point on the seat frame. Examination of the seat belt showed a distorted keeper clip on the hook assembly.
Aircraft
- Registration
- N933ML
- Reported as
- Douglas DC-9-32 (DC9-32)
- Category
- Airplane
- Serial number
- 47548
- Engine
- P&W JT8D, turbo fan
- Damage
- No damage
- Flight
- Part 121
- Operator
- Midway Airlines
- Airworthiness certificate
- Standard, Transport
- Departed
- MDW · Chicago, IL
- Destination
- MCI · Kansas City, MO
- Flight plan
- IFR
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Certificate
- Airline transport
- Airplane ratings
- Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Unknown
Weather
- Conditions
- Day
- Wind
- 200° at 11 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 88 °F, dew point 73 °F
- Altimeter
- 29.00 inHg
- Observed at
- MCI, 27 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.