# NTSB Accident ANC99TA058
> **Bell UH-1B** · 1999-05-05 · WRANGELL, AK, USA · FATL
## Event
- **NTSB number:** ANC99TA058
- **Event ID:** 20001212X18681
- **Type:** Accident
- **Date:** 1999-05-05
- **Location:** WRANGELL, AK, USA
- **Coordinates:** 56.410415, -131.610534
## Injuries
- **Highest injury:** FATL
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 3
## Aircraft
- **Make:** Bell
- **Model:** UH-1B
- **Registration:** N97HM
- **FAR Part:** 133
- **Engines:** 1
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot-in-command's failure to maintain sufficient distance from a transmission wire, arcing of the transmission wire, the failure of company personnel to utilize a nonconducting cable, and an inadequate procedure utilized by the construction project manager to ensure adequate fault protection on an energized transmission wire.  Factors in the accident were a failure of the helicopter operator to maintain sufficient standards, including flight and ground crew coordination, and a failure to maintain radio communication between the pilot and ground crew.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC99TA058) · AI Analytics · CC0 1.0*