# NTSB Incident FTW89IA067
> **BOEING 727-232** · 1989-03-14 · GREENVILLE, TX, USA · MINR
## Event
- **NTSB number:** FTW89IA067
- **Event ID:** 20001213X27892
- **Type:** Incident
- **Date:** 1989-03-14
- **Location:** GREENVILLE, TX, USA
- **Coordinates:** 33.189849, -96.109138
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 7
- **Uninjured:** 91
- **Total aboard:** 98
## Aircraft
- **Make:** BOEING
- **Model:** 727-232
- **Registration:** N511DA
- **FAR Part:** 121
- **Engines:** 3
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FALSE FIRE WARNING, WHICH RESULTED FROM (1) CONTAMINANTS ON HARDWARE AT ONE END OF THE FIRE DETECTION LOOP; AND (2) AN ELECTRICAL SHORT ON BOTH ELEMENTS OF THE LOOP.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW89IA067) · AI Analytics · CC0 1.0*