# NTSB CHI83LA232: Boeing A75N1, N52470, Lebanon, IN, May 27, 1983

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Limited investigation · Final report
- Date: May 27, 1983, 17:27 local (22:27 UTC)
- Place: Lebanon, IN
- Coordinates: 40.05017, -86.469848 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.0502&lon=-86.4698&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 1 serious, 1 uninjured; on the ground: 1 fatal, 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12189
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI83LA232
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12189/pdf
- Page: https://openairdocs.org/ntsb/CHI83LA232

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - reason for occurrence undetermined (cause)
  - fluid,fuel grade - improper
  - maintenance,service of aircraft/equipment - improper, pilot in command
- Forced landing, landing
- In flight collision with terrain/water, landing
  - object - building(nonresidential) (contributing factor)
  - object - other person (contributing factor)
  - maneuver - attempted, pilot in command (contributing factor)

## Analysis

THE PLT HAD FLOWN THE ACFT TO BOONE COUNTY ARPT TO GET THE ACFT'S CARBURETOR ADJUSTED. AFTER THE ADJUSTMENT, HE TOOK OFF TO THE SOUTH ON A GRASS RWY BESIDE THE CONCRETE RWY. WHILE CLIMBING THRU ABOUT 300 TO 400 FT AGL, THE ENG BEGAN RUNNING ROUGH. THE PLT ELECTED TO TURN & LAND ON THE ARPT. ON FINAL APCH, THE ACFT CROSSED OVER A BUILDING AREA AT A LOW ALT. ALSO, ON FINAL APCH, HE SAW 1 OF 2 PERSONS THAT WERE AHEAD, ON THE GROUND. THE PLT SAW THAT HE WAS ON A COLLISION COURSE. HE ELECTED TO PUSH THE CONTROL STICK FORWARD, BOUNCE THE ACFT OFF THE CONCRETE & OVER THE PERSON . HOWEVER, THE GEAR FAILED ON IMPACT & THE ACFT SKIDDED 236 FT ACROSS THE RAMP & INTO A GRASS AREA. BOTH PERSONS ON THE GROUND WERE STRUCK BY THE ACFT. THE PLT STATED THAT HE WAS USING A MIXTURE OF AUTOMOTIVE/AVIATION FUEL.

## Aircraft

- Registration: [N52470](https://openairdocs.org/deregistered/N52470-2009-01-13), registration cancelled 2009-01-13, S/N 75-4722, built 1943 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Jacobs L4 /R755-7](https://openairdocs.org/engine/jacobs-l4-r755-7) (registry code 35003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 75-4722
- Airframe hours: 7084
- Engines: LYCOMING R-680-17 220 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Robert H. Hawk
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 19, 1983, 11 hours before
- Destination: 172, WESTFIELD, IN
- Airport: 614, Boone County

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: rear; flight hours: 3,430 total, 200 in this make and model, 3,340 as pilot in command, 13 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 3 knots
- Visibility: 15 statute miles
- Lowest ceiling: 9,000 ft broken
- Temperature: 66 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: IND, 19 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 19830527021469A](https://openairdocs.org/incident/19830527021469A), May 27, 1983: Boeing A75N1, Lebanon, IN, Substantial damage. Struck 2 persons on the ramp on returning to land due to a rough engine. Was using auto and aviation fuel mixture.

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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