# NTSB ATL91LA023: Cessna 172N, N6168F, Chamblee, GA, November 29, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 29, 1990, 12:40 local (17:40 UTC)
- Place: Chamblee, GA
- Coordinates: 33.89949, -84.300163 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.8995&lon=-84.3002&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 8359
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL91LA023
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/8359/pdf
- Page: https://openairdocs.org/ntsb/ATL91LA023

## Probable cause

PILOT'S FAILURE TO MAINTAIN ADEQUATE WINGTIP CLEARANCE DURING TAXI.

## Sequence of events

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

- On ground/water collision with object, taxi - from landing
  - object - pole
  - clearance - not maintained, pilot in command (cause)

## Analysis

AS THE PILOT WAS TAXIING TO PARK AT THE AIRPORT, THE LEFT WING CONTACTED A TWO-FOOT DIAMETER STEEL POLE, WHICH SUPPORTS A LARGE PARKING CANOPY. THE PILOT STATED THAT HE WAS WATCHING THE LINESMAN WHEN THE COLLISION OCCURRED. HE ALSO STATED THAT THE LINE MAN DID NOT GIVE HIM INSTRUCTIONS TO STOP OR TURN, NOR DID HE GIVE HIM ANY INDICATION THAT HE WAS TOO CLOSE THE OBSTRUCTION.

## Aircraft

- Registration: [N6168F](https://openairdocs.org/deregistered/N6168F-2007-05-24), registration cancelled 2007-05-24, S/N 17273159, 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: 17273159
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Midlands Aviation Corp.
- Departed: COLUMBIA, SC
- Flight plan: VFR
- Airport: PDK, Dekalb-Peachtree

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 85 total, 19 in this make and model, 47 as pilot in command, 20 in the last 90 days, 17 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 19 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 50 °F, dew point 19 °F
- Altimeter: 30.00 inHg
- Observed at: ATL, 16 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 19901129055429A](https://openairdocs.org/incident/19901129055429A), Nov 29, 1990: Cessna 172N, Atlanta, GA, Substantial damage. Taxiing to park struck a metal pole with left wing. Lineman failed to warn pilot.

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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