# NTSB Accident FTW90DPJ01
> **ZIMMERMAN MONI MOTORGLIDER** · 1989-10-04 · OKLAHOMA CITY, OK, USA · MINR
## Event
- **NTSB number:** FTW90DPJ01
- **Event ID:** 20001213X29594
- **Type:** Accident
- **Date:** 1989-10-04
- **Location:** OKLAHOMA CITY, OK, USA
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** ZIMMERMAN
- **Model:** MONI MOTORGLIDER
- **Registration:** N15JZ
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

POWER LOSS DUE TO THE DETERIORATED MUFFLER BAFFLE WHICH WAS NOT DISCOVERED IN THE RECENT ANNUAL INSPECTION. A FACTOR WAS THE PILOT'S FAILURE TO PROPERLY ANALYZE AND CORRECT FOR THE HEADWIND.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW90DPJ01) · AI Analytics · CC0 1.0*