# NTSB Accident IAD04LA018
> **Beech A36** · 2004-04-28 · Bedford, MA, USA · MINR
## Event
- **NTSB number:** IAD04LA018
- **Event ID:** 20040525X00656
- **Type:** Accident
- **Date:** 2004-04-28
- **Location:** Bedford, MA, USA
- **Coordinates:** 42.463333, -71.293334
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** Beech
- **Model:** A36
- **Registration:** N3243P
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The mechanic's failure to properly torque the engine-driven fuel pump's return line B-nut fitting.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=IAD04LA018) · AI Analytics · CC0 1.0*