# NTSB ATL84LA056: Cessna 172N, N6257F, Knoxville, TN, January 28, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 28, 1983, 15:45 local (20:45 UTC)
- Place: Knoxville, TN
- Coordinates: 35.79079, -83.96952 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.7908&lon=-83.9695&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6393
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL84LA056
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6393/pdf
- Page: https://openairdocs.org/ntsb/ATL84LA056

## Sequence of events

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

- In flight encounter with weather, takeoff - initial climb
  - flight into known adverse weather - initiated, pilot in command (contributing factor)
  - weather condition - unfavorable wind (contributing factor)
  - weather condition - high wind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
- In flight collision with terrain/water, takeoff - initial climb

## Analysis

THE ACFT RECONTACTED THE GROUND DURING TAKEOFF AND BOUNCED SEVERAL TIMES BEFORE COMING TO REST. THE PROPELLER, NOSE STRUT AND FIREWALL WERE DAMAGED. THE WIND WAS REPORTEDLY FROM 250 DEGREES AT 14 KTS GUSTING TO 26 KTS. THE ATC CONTROLLERS ON DUTY SAID THE WIND SHEAR ALERT WAS ACTIVATING ALMOST CONSTANTLY. A FEW MINUTES LATER THE WIND WAS REPORTEDLY 25 KTS WITH GUSTS TO 39 KTS. AN OPERATOR OF A CHARTER SERVICE ON THE ARPT HAD REPORTEDLY GROUNDED HIS ACFT BECAUSE OF THE WIND CONDITIONS.

## Aircraft

- Registration: [N6257F](https://openairdocs.org/deregistered/N6257F-2008-09-09), registration cancelled 2008-09-09, S/N 17273175, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17273175
- Airframe hours: 2494
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: East Tennessee Pilot'S Club
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 17, 1983, 41 hours before
- Departed: TYS
- Airport: TYS, Mcghee Tyson, runway 23L, 5,999 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 190 total, 81 in this make and model, 142 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 250° at 14 knots, gusting 26
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 57 °F
- Altimeter: 29.00 inHg
- Observed at: TYS

## Other investigations on N6257F (1)

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.

- [NTSB ATL04LA082](https://openairdocs.org/ntsb/ATL04LA082), Mar 10, 2004: Cessna 172N (N6257F), Knoxville, TN, substantial damage. Probable cause: The CFI's inadequate in-flight planning/decision and his inadequate supervision which resulted in fuel exhaustion. A factor was the inadequate preflight planning/preparation to ensure an adequate…

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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