# NTSB ANC93FA034: Cessna 402C, N4182G, Nome, AK, February 20, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: February 20, 1993, 09:00 local (13:00 UTC)
- Place: Nome, AK
- Coordinates: 64.710014, -164.620941 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=64.7100&lon=-164.6209&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 15, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5836
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC93FA034
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5836/pdf
- Page: https://openairdocs.org/ntsb/ANC93FA034

## Probable cause

THE PILOT IN COMMAND NOT REMOVING THE ICE FROM THE PLANE'S AIRFOIL SURFACES BEFORE TAKEOFF.  THE WEATHER CONDITION WAS A FACTOR.

## Analysis

THE AIRPLANE WAS REMOVED FROM A HANGER ABOUT ONE HOUR BEFORE DEPARTURE. DURING THE INTERIM PERIOD, THE AMBIENT TEMPERATURE WAS ABOUT 32 DEGREES FAHRENHEIT AND IT WAS SNOWING LIGHTLY.  NO DEICING FLUID WAS USED ON THE AIRPLANE. THE PILOT REPORTED OBSERVING ONLY WATER ON THE PLANE'S WINGS. THE PASSENGER (A RATED PILOT) REPORTED TO AN ALASKA STATE TROOPER THAT THE AIRPLANE HAD ACCUMULATED A LITTLE ICE BEFORE THE FLIGHT DEPARTED.  THE AIRPLANE BECAME AIRBORNE ABOUT 1,000 FT FROM THE END OF THE 5,576 FT LONG RUNWAY. SHORTLY AFTER ROTATION, THE AIRPLANE BEGAN TO BUFFET AND WOULD NOT CLIMB.  THE AIRPLANE IMPACTED IN A NEAR HORIZONTAL ATTITUDE ON LEVEL SNOW COVERED TUNDRA.  THE PILOT REPORTED THAT IMMEDIATELY AFTER EXITING THE AIRPLANE, HE OBSERVED A COARSE LAYER OF ICE ON THE AFT TWO THIRDS OF THE WINGS.  DURING THE TEST RUN OF BOTH ENGINES, NO PROBLEMS WERE NOTED THAT WOULD HAVE CAUSED AND/OR CONTRIBUTED TOWARD THE INABILITY OF THE AIRPLANE TO SUSTAIN FLIGHT.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - weather condition - snow (contributing factor)
  - ice/frost removal from aircraft - not performed, pilot in command (cause)
  - stall/mush - encountered, pilot in command
- In flight collision with terrain/water, descent - uncontrolled

## Aircraft

- Registration: [N4182G](https://openairdocs.org/deregistered/N4182G-1996-01-08), registration cancelled 1996-01-08, S/N 402C0284 (OpenAirDocs)
- Reported make and model: CESSNA 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (registry code 207590R) (OpenAirDocs)
- Category: Airplane
- Serial number: 402C0284
- Airframe hours: 5905
- Engines: CONTINENTAL TSIO-520-VB 325 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 135
- Operator: Ryan Air Service
- Registered owner: Ryan Air Service
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, February 6, 1993, 40 hours before
- Departed: OME
- Destination: SVA, SAVOONGA, AK
- Flight plan: IFR
- Airport: OME, Nome, runway 2, 5,576 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 3,201 total, 736 in this make and model, 2,982 as pilot in command, 198 in the last 90 days, 95 in the last 30 days, 7 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Dawn
- Wind: 60° at 5 knots
- Visibility: 1 statute miles
- Lowest ceiling: 1,400 ft overcast
- Temperature: 28 °F, dew point 27 °F
- Altimeter: 30.00 inHg
- Observed at: OME, 1 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 19930220002949A](https://openairdocs.org/incident/19930220002949A), Feb 20, 1993: Cessna 402C, Nome, AK, Substantial damage. Unable to maintain flying speed on climbout. Aborted. Landed gear up on snow. Found entire airframe had clear ice.

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

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