# NTSB Accident DEN90LA054
> **PIPER PA-32RT-300T** · 1990-02-03 · PROVO, UT, USA · NONE
## Event
- **NTSB number:** DEN90LA054
- **Event ID:** 20001212X22549
- **Type:** Accident
- **Date:** 1990-02-03
- **Location:** PROVO, UT, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** PIPER
- **Model:** PA-32RT-300T
- **Registration:** N21492
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

IMPROPER INSTALLATION BY MAINTENANCE PERSONNEL AND FATIGUE FAILURE AND LEAKAGE OF THE LEFT INTERMEDIATE EXHAUST PIPE, WHICH RESULTED IN AN IN-FLIGHT FIRE IN THE ENGINE COMPARTMENT.  CONTRIBUTING FACTORS WERE: INADEQUATE SERVICE BULLETIN PROVIDED BY THE MANUFACTURER AND INSUFFICIENT STANDARDS PROVIDED BY THE (FAA) AIRWORTHINESS DIRECTIVE.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN90LA054) · AI Analytics · CC0 1.0*