# NTSB Accident DCA98MA023
> **Boeing 727-223** · 1998-02-09 · CHICAGO, IL, USA · MINR
## Event
- **NTSB number:** DCA98MA023
- **Event ID:** 20001211X09531
- **Type:** Accident
- **Date:** 1998-02-09
- **Location:** CHICAGO, IL, USA
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 23
- **Uninjured:** 99
- **Total aboard:** 122
## Aircraft
- **Make:** Boeing
- **Model:** 727-223
- **Registration:** N845AA
- **FAR Part:** 121
- **Engines:** 3
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

the failure of the flight crew to maintain a proper pitch attitude for a successful landing or go-around.  Contributing to the accident were the divergent pitch oscillations of the airplane, which occurred during the final approach and were the result of an improper autopilot desensitization rate.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA98MA023) · MORVS · CC0 1.0*