# NTSB Accident NYC97FA011
> **Yakovlev YAK-18T** · 1996-10-27 · BERLIN, NJ, USA · FATL
## Event
- **NTSB number:** NYC97FA011
- **Event ID:** 20001208X06957
- **Type:** Accident
- **Date:** 1996-10-27
- **Location:** BERLIN, NJ, USA
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** Yakovlev
- **Model:** YAK-18T
- **Registration:** N9418
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

an inadequate preflight by unknown person(s), sometime before the flight, by failing to avoid a hydraulic lock (from oil seepage) in the #5 cylinder, which resulted in a bent connecting rod, subsequent failure of the #5 piston, and loss of engine power.  Also causal was: the flight crew's failure to maintain adequate control of the aircraft and/or clearance from a tree, while maneuvering for an emergency landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=NYC97FA011) · AI Analytics · CC0 1.0*