# NTSB Accident CHI97LA277
> **Hughes 269A** · 1997-08-31 · COUNCIL BLUFFS, IA, USA · SERS
## Event
- **NTSB number:** CHI97LA277
- **Event ID:** 20001208X08601
- **Type:** Accident
- **Date:** 1997-08-31
- **Location:** COUNCIL BLUFFS, IA, USA
- **Coordinates:** 41.24057, -95.850318
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 2
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Hughes
- **Model:** 269A
- **Registration:** N7058T
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

inadequate supervision by the designated examiner by failing to ensure a timely autorotation recovery was initiated.  A related factor was: the student pilot allowed the rotor rpm to diminish after the examiner simulated a loss of engine power.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI97LA277) · AI Analytics · CC0 1.0*