# NTSB ANC88FA051: Beech C55, N2730T, Tyonek, AK, April 27, 1988

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: April 27, 1988, 13:18 local (21:18 UTC)
- Place: Tyonek, AK
- Coordinates: 61.080593, -151.159378 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.0806&lon=-151.1594&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report September 11, 1989
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4948
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC88FA051
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4948/pdf
- Page: https://openairdocs.org/ntsb/ANC88FA051

## Sequence of events

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

- In flight collision with terrain/water, maneuvering
  - terrain condition - high terrain (contributing factor)
  - weather condition - clouds (contributing factor)
  - ifr procedure - improper, pilot in command (cause)
  - overconfidence in personal ability, pilot in command (contributing factor)
  - in-flight planning/decision - poor, pilot in command (cause)
  - preflight planning/preparation - inadequate, pilot in command (contributing factor)

## Analysis

THE TWO PILOTS WERE OPERATING THE AIRCRAFT UNDER THE AUTHORITY OF A FERRY PERMIT WHICH ALLOWED FLT ONLY DURING DAY VFR CONDITIONS AND WITH A SINGLE PILOT. THEY REQUESTED AND RECEIVED JUST THE WEATHER AT THE DESTINATION AIRPORT, WHICH WAS VMC. EN ROUTE THE FLT ENCOUNTERED IMC OVER A MOUNTAIN RANGE. RADAR RETURNS INDICATED THAT AS THE WEATHER WAS ENCOUNTERED, THE FLIGHT DEVIATED FROM THE ASSIGNED AIRWAY, AND FOLLOWED MOUNTAIN PASSES. ATTEMPTS TO CONTACT THE PILOT SHORTLY AFTER HE LEFT THE ASSIGNED AIRWAY WERE UNSUCCESSFUL. THE AIRCRAFT WAS FOUND AT THE 10,600 ELEVATION OF A 11,413 FOOT MT, 30 MILES SOUTH OF COURSE. WEATHER IN THE AREA WAS IMC WITH MODERATE TO HEAVY ICING REPORTED SHORTLY AFTER THE ACCIDENT.

## Aircraft

- Registration: [N2730T](https://openairdocs.org/deregistered/N2730T-1992-05-06), registration cancelled 1992-05-06, S/N TE375 (OpenAirDocs)
- Reported make and model: BEECH C55
- Registry model: [Beech 95-C55](https://openairdocs.org/model/beech-95-c55) (registry code 1152708) (OpenAirDocs)
- Category: Airplane
- Serial number: TE 375
- Engines: CONTINENTAL IO-520 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Ferry, Part 91
- Operator: Galena Air Service
- Registered owner: Galena Air Service
- Airworthiness certificate: Standard, Normal
- Departed: GAL, GALENA, AK
- Destination: MRI, ANCHORAGE, AK
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; commercial; airplane ratings: single-engine sea, multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 17,600 total, 32 in this make and model, 17,500 as pilot in command, 2 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Observed at: ANC, 75 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 19880427014609A](https://openairdocs.org/incident/19880427014609A), Apr 27, 1988: Beech 95C55, Tyonek, AK, Substantial damage, 2 fatal. Hit side of mountain in level flight, was off course from airway. Pilot did not ask for weather, nor was advised.

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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