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Accidents · NTSB ATL89FA166 · Final report

Piper PA-60-601P accident near Lithia Springs, Georgia, June 21, 1989

On June 21, 1989 at about 12:23 pm local time, a Piper PA-60-601P, registered N83AT, was destroyed in an accident near Lithia Springs, Georgia. It was a business flight under general aviation rules (Part 91). 3 people were killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

INFLIGHT ENGINE/WING FIRE DUE TO A FAILURE OF THE RIGHT ENGINE'S LEFT EXHAUST TAILPIPE. THE EXHAUST TAILPIPE FAILED IN FATIGUE AS A RESULT OF FLUCTUATING STRESSES INDUCED BY A DETERIORATED ENGINE MOUNT IN CONJUNCTION WITH UNEVENLY DISTRIBUTED CLAMPING LOADS CAUSED BY AN IMPROPERLY SEATED GASKET.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 21, 1989 · about 12:23 pm local time
Place
Lithia Springs, Georgia · map
Type
Accident
Injuries
3 people were killed.
Weather
visual conditions (good weather)
Aircraft
Piper PA-60-601P · all PA-60-601Ps on the register
Registration
N83AT · no longer on the register · serial 61P0296074
Damage
Destroyed
Flight
Business flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

ELEVEN MINUTES AFTER DEPARTURE THE PILOT REPORTED SMOKE AND A RIGHT ENGINE PROBLEM, THEN SAID 'GOING DOWN'. RIGHT WING AND ENGINE ASSEMBLIES SEPARATED IN FLIGHT. FIRE DAMAGE VICINITY OF RIGHT ENGINE LEFT TURBOCHARGER; TAILPIPE ASSEMBLY HAD SEPARATED. HEAVY SMOKE & HEAT DAMAGE BETWEEN RIGHT WING FORWARD & AFT WING SPARS. TAILPIPE HAD FAILED IN FATIGUE NEAR FLANGE WHERE ATTACHED TO TURBOCHARGER EXHAUST PORT. EVIDENCE OF NON-UNIFORMLY SEATED GASKET BETWEEN FLANGES. ALSO, RIGHT ENGINE LOWER LEFT ENGINE MOUNT DETERIORATED; SIGNIFICANT PORTION OF RUBBER MISSING. PIPER SB #818 (AD87-07-09) ACCOMPLISHED 5/21/88; REQUIRES REMOVAL & INSPECTION OF EXHAUST SYSTEM FOR CRACKS AND REINSTALLATION WITH NEW FLANGE GASKETS.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 10,000 hours in all
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 1,454 hours
  • Last inspection: annual inspection, December 6, 1988; 74 hours since
  • Maximum gross weight: 6,000 lb
  • Seats: 6
  • Landing gear: retractable
  • Engine: Lycoming IO-540-S1A5 (piston); 0 hours total
  • Operator: Aero Star Transport CORP

The flight

  • Departed from: PDK Atlanta GA at 12:11 pm
  • Destination: MEM Memphis TN
  • Flight plan: IFR
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 240° at 6 knots
  • Visibility: 5 statute miles
  • Sky: broken clouds; not recorded
  • Temperature: 70°F (21°C), dew point 70°F (21°C)
  • Altimeter: 30.00 inHg
  • Observation at 12:12 pm from FTY, 7 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers2

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.