# NTSB Accident SEA00LA188
> **Hughes 269B** · 2000-09-24 · BURLINGTON, WA, USA · MINR
## Event
- **NTSB number:** SEA00LA188
- **Event ID:** 20001212X22081
- **Type:** Accident
- **Date:** 2000-09-24
- **Location:** BURLINGTON, WA, USA
- **Coordinates:** 48.529411, -122.310058
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 3
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** Hughes
- **Model:** 269B
- **Registration:** N9355F
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Mintenance personnel not following the mandatory service bulletin procedure of not exceeding 0.0005 inch paint thickness on the cylinder flange.  Factors were the fatigue separation of multiple cylinder hold down bolts resulting in looseness of the cylinder; and the subsequent vibration and fatigue separation of the fuel injector line.  An additional factor was the pilot's operation of the rotorcraft outside the height/velocity parameters for a successful autorotation.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA00LA188) · AI Analytics · CC0 1.0*