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| Date: | Wednesday 29 May 1991 |
| Time: | 13:00 LT |
| Type: |  Douglas DC-9-32 |
| Owner/operator: | Midway Airlines |
| Registration: | N933ML |
| MSN: | 47548/633 |
| Year of manufacture: | 1971 |
| Engine model: | P&W JT8D |
| Fatalities: | Fatalities: 0 / Occupants: 46 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Kansas City, MO -
 United States of America
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Chicago, IL (KMDW) |
| Kansas City, MO (KMCI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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.
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.
Accident investigation:
 |
|
Sources:
NTSB CHI91IA175
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 07:56 | ASN Update Bot | Added |
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