# NTSB Accident DCA91MA021
> **MCDONNELL DOUGLAS DC-9-15** · 1991-02-17 · CLEVELAND, OH, USA · FATL
## Event
- **NTSB number:** DCA91MA021
- **Event ID:** 20001212X16434
- **Type:** Accident
- **Date:** 1991-02-17
- **Location:** CLEVELAND, OH, USA
- **Coordinates:** 41.489826, -81.67012
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** MCDONNELL DOUGLAS
- **Model:** DC-9-15
- **Registration:** N565PC
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** NDRK
- **Weather:** IMC
## Probable cause

THE FAILURE OF THE FLIGHTCREW TO DETECT AND REMOVE ICE CONTAMINATION ON THE AIRPLANE'S WINGS, WHICH WAS LARGELY A RESULT OF A LACK OF APPROPRIATE RESPONSE BY THE FEDERAL AVIATION ADMINISTRATION, DOUGLAS AIRCRAFT COMPANY, AND RYAN INTERNATIONAL AIRLINES TO THE KNOWN CRITICAL EFFECT THAT A MINUTE AMOUNT OF CONTAMINATION HAS ON THE STALL CHARACTERISTICS OF THE DC-9 SERIES 10 AIRPLANE. THE ICE CONTAMINATION LED TO WING STALL AND LOSS OF CONTROL DURING THE ATTEMPTED TAKEOFF. (NTSB REPORT AAR-91/09)

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA91MA021) · AI Analytics · CC0 1.0*