# NTSB MKC82DA016: Cessna 340, N2672A, Rolla, MO, January 6, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: January 6, 1982, 14:30 local (20:30 UTC)
- Place: Rolla, MO
- Location: 37.9357° N, 91.8135° W: Placed by OpenAirDocs at ROLLA DOWNTOWN (K07), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9357&lon=-91.8135&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 6, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72419
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC82DA016
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72419/pdf
- Page: https://openairdocs.org/ntsb/MKC82DA016

## Sequence of events

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

- In flight encounter with weather, approach
  - weather condition - rain (contributing factor)
  - weather condition - icing conditions (contributing factor)
  - propeller system/accessories,blade - ice (contributing factor)
  - wing - ice (contributing factor)
- Airframe/component/system failure/malfunction, approach
  - anti-ice/deice system,propeller - erratic (contributing factor)
  - maintenance - inadequate, other maintenance personnel (contributing factor)
  - propeller system/accessories - vibration (contributing factor)
  - anti-ice/deice system,wing - erratic (contributing factor)
- Hard landing, landing - flare/touchdown
  - airspeed - inadequate, pilot in command (cause)

## Analysis

THE AIRCRAFT WAS CERTIFICATED FOR FLIGHT INTO KNOWN ICING CONDITIONS UP TO MODERATE ICING. THE PILOT STATED THAT THE SURFACE DE-ICERS WERE OPERATING DURING THE PREFLIGHT. DURING AN INSTRUMENT APPROACH AT THE DESTINATION. THE AIRCRAFT ENTERED CLOUDS AT ABOUT 4400 FT MSL. THE AIRCRAFT BEGAN TO PICK UP ICE. THE RIGHT ENGINE STARTED VIBRATING AND CONTINUALLY GOT WORSE. WHEN THE AIRCRAFT WAS OVER THE RUNWAY, IT DROPPED IN FROM A HIGHER THAN NORMAL HEIGHT AND LANDED HARD. A CONSIDERABLE AMOUNT OF SURFACE ICE WAS STILL ON THE AIRCRAFT AFTER IT WAS PARKED. THE PILOT REPORTED THAT THE PLANE HAD A HISTORY OF PROBLEMS WITH THE AIRCRAFT AND PROPELLER BOOTS. DURING A FERRY FLIGHT AFTER THE ACCIDENT THE SURFACE BOOTS DID NOT OPERATE. LATER, THE BOOTS OPERATED DURING A GROUND CHECK.

## Aircraft

- Registration: N2672A (not matched to a registry record)
- Reported make and model: CESSNA 340
- Category: Airplane
- Serial number: 340A0749
- Airframe hours: 634
- Engines: CONTINENTAL TSIO-520-J 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Executive/Corporate, Part 91
- Operator: American National Bank
- Registered owner: American National Bank
- Departed: STJ, ST JOSEPH, MO
- Destination: WEBSTER CITY IA
- Flight plan: IFR
- Airport: K07, Downtown, runway 27, 3,145 × 40 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; flight hours: 12,150 total, 400 in this make and model, 8,000 as pilot in command, 65 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 10 knots
- Visibility: 3 statute miles
- Lowest ceiling: 1,200 ft overcast
- Temperature: 82 °F

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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