# NTSB ANC84LA127: North American Navion, N225G, Atigun Pass, AK, July 28, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 27, 1984, 22:00 local (Jul 28, 1984, 06:00 UTC)
- Place: Atigun Pass, AK
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4331
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC84LA127
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4331/pdf
- Page: https://openairdocs.org/ntsb/ANC84LA127

## Sequence of events

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

- In flight encounter with weather, cruise - normal
  - weather condition - downdraft (contributing factor)
- Forced landing, descent - emergency
  - aircraft performance,climb capability - exceeded (contributing factor)
  - altitude - inadequate, pilot in command (contributing factor)
  - in-flight planning/decision - inadequate, pilot in command (cause)
- In flight collision with terrain/water, landing - flare/touchdown
  - gear extension - not performed, pilot in command (cause)
  - terrain condition - mountainous/hilly (contributing factor)

## Analysis

THE ACFT ENCOUNTERED A DOWNDRAFT WHILE FLYING THROUGH A MOUNTAIN PASS. THE TERRAIN WOULD NOT ALLOW THE PLT TO MAKE A 180DEG TURN SO HE ELECTED TO LAND ON A ROAD WITH THE LANDING GEAR RETRACTED.

## Aircraft

- Registration: [N225G](https://openairdocs.org/deregistered/N225G-1995-07-13), registration cancelled 1995-07-13, S/N NAV41944 (OpenAirDocs)
- Reported make and model: NORTH AMERICAN NAVION
- Registry model: [Ryan NAVION A](https://openairdocs.org/model/ryan-navion-a) (registry code 6150162) (OpenAirDocs)
- Category: Airplane
- Serial number: 4-335
- Airframe hours: 6949
- Engines: CONTINENTAL E-225 205 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Horace Drury
- Registered owner: Horace F. Drury
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 17, 1984, 51 hours before
- Departed: CHANDLAR LAKE, AK
- Destination: BTT, BETTLES, AK
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 69; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 5,468 total, 4,000 in this make and model, 5,380 as pilot in command, 76 in the last 90 days, 40 in the last 30 days, 9 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 15 knots, gusting 25
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 50 °F, dew point 16 °F

## 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 19840727038779A](https://openairdocs.org/incident/19840727038779A), Jul 27, 1984: Tmpson NAVIONA, Atigun Pass, AK, Substantial damage. Pilot stated after entering mountain Pass aircraft encountered severe downdraft. Aircraft landed gear up.

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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