Serious incident Boeing 737-3B7 N527AU, Tuesday 21 September 1993
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Date:Tuesday 21 September 1993
Time:11:17 LT
Type:Silhouette image of generic B733 model; specific model in this crash may look slightly different    
Boeing 737-3B7
Owner/operator:USAir
Registration: N527AU
MSN: 23842/136
Total airframe hrs:18151 hours
Engine model:GE CF-56-3B2
Fatalities:Fatalities: 0 / Occupants: 88
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:Indianapolis, IN -   United States of America
Phase: En route
Nature:Unknown
Departure airport:Philadelphia, PA (KPHI)
Destination airport:Kansas City, MO (KMCI)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
DURING FLIGHT THE FLIGHT ATTENDANTS COMPLAINED OF HYPOXIA SYMPTOMS. THE FIRST OFFICER INVESTIGATED THE AIRPLANE'S CABIN WITH NEGATIVE RESULTS. THE FLIGHT ATTENDANTS REPORTED THEY HAD HYPOXIA SYMPTOMS TO THE FLIGHT CREW A SECOND TIME AND THIS TIME THEIR FINGERNAILS HAD TURNED BLUE. THE CAPTAIN REQUESTED, AND RECEIVED, AN ATC CLEARANCE TO DIVERT TO AND LAND AT INDIANAPOLIS. HOSPITAL EXAMINATION OF THE FLIGHT ATTENDANTS AND FOUR PASSENGERS REVEALED NO CARBON MONOXIDE POISONING. THE HOSPITAL REPORTS STATED THERE WAS 'POSSIBLE TOXIC INHALATIONAL EXPOSURE.' THE AIRPLANE WAS CHECKED FOR CARBON MONOXIDE AND ORGANIC VAPORS DURING GROUND RUNUP AND FERRY FLIGHT TO THE COMPANY'S MAINTENANCE CENTER WITH NEGATIVE RESULTS.

Probable Cause: an undetermined problem which resulted in the physical impairment of flight attendants, passengers and the first officer.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CHI93IA372
Status: Investigation completed
Duration: 10 months
Download report: Final report

Sources:

NTSB CHI93IA372

Location

Revision history:

Date/timeContributorUpdates
16-Mar-2024 16:30 ASN Update Bot Added

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