# NTSB SEA85LA026: Cessna 402C, N402NQ, Boise, ID, December 3, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 3, 1984, 12:10 local (19:10 UTC)
- Place: Boise, ID
- Coordinates: 43.559928, -116.210731 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.5599&lon=-116.2107&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40094
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA026
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40094/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA026

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, maneuvering
  - judgment - poor, pilot in command (cause)
  - altitude - improper, pilot in command (contributing factor)
  - visual lookout - inadequate, pilot in command (contributing factor)
  - object - wire,static
  - clearance - not maintained, pilot in command (cause)

## Analysis

DESCENT WAS MADE TO APRX 50 FT AGL TO OBSERVE A HERD OF CATTLE. ACFT CONTACTED POWER LINES CUTTING OFF THE LEFT WING TIP. FLT CONTINUED AND LANDING WAS MADE AT BOISE AIR TERMINAL WITHOUT INCIDENT. PLT STATED HE DID NOT SEE WIRES.

## Aircraft

- Registration: [N402NQ](https://openairdocs.org/deregistered/N402NQ-2012-09-11), registration cancelled 2012-09-11, S/N 402C0093, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (registry code 207590R) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 402C0093
- Engines: CONTINENTAL TSIO-520-VB 325 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Regional Express
- Airworthiness certificate: Standard, Normal
- Departed: TWF, TWIN FALLS, ID
- Destination: BOI, BOISE, ID
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 3,406 total, 100 in this make and model, 3,266 as pilot in command, 150 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 3 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 27 °F, dew point 12 °F
- Altimeter: 30.00 inHg
- Observed at: BOI, 112 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19841203073919A](https://openairdocs.org/incident/19841203073919A), Dec 3, 1984: Cessna 402C, Boise, ID, Substantial damage. Elected to descend en route on a cargo flight to observe a herd of cattle. Struck powerlines. Returned to airport.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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