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Accidents · NTSB CHI85LA155 · Preliminary: the investigation is not finished

Piper PA-32RT-300T accident near Port Huron, Michigan, April 7, 1985

On April 7, 1985 at about 9:30 pm local time, a Piper PA-32RT-300T, registered N2135A, was substantially damaged in an accident near Port Huron, Michigan (St. Clair County airport). It was an instructional flight under general aviation rules (Part 91). 1 person had minor injuries; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
April 7, 1985 · about 9:30 pm local time
Place
Port Huron, Michigan · St. Clair County · map
Type
Accident
Injuries
1 person had minor injuries; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Piper PA-32RT-300T PA-32RT-30 · all PA-32RT-300Ts on the register
Registration
N2135A · no longer on the register · serial 32-7987009
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

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

AFTER A PRACTICE INSTRUMENT APCH, THE PLT (PIC) ENTERED THE TRAFFIC PATTERN TO LAND ON RWY 23. WHILE IN THE PATTERN, THEAIR BECAME VERY TURBULENT. UNICOM REPORTED THE WIND WAS FROM 270 DEG AT 20 GUSTING 35 KTS. ON FINAL APCH WITH THE FLAPS FULLY EXTENDED, THE PLT INITIATED A GO-AROUND AT APRX 50 FT AGL & APPLIED POWER TO 36' MANIFOLD PRESSURE. HE STATED THATTHE AIRSPEED WAS APRX 110 KTS WHEN THE ACFT ENCOUNTERED A SEVERE VERTICAL DOWNWIND SHEAR, STRUCK THE GROUND APRX 10 FT WEST OF THE RWY, & HIT A RWY LIGHT. TWO WITNESSES NOTED THAT THE ACFT APPEARED SO SLOW ON FINAL APCH THAT THEY WENT TO THE UNICOM TO ADVISE THAT 'THE WINDS WERE NOW 290 DEG AT 25 GUSTING TO 35.' THEY SAID POWER WAS APPLIED & THE ACFT PITCHED NOSE DOWN. ALSO, A WITNESS REPORTED 'HEAVY' WX APRX 10 TO 15 MI WEST OF THE ARPT, MOVING EAST, & RAIN BEGAN SHORTLY AFTER THE ACCIDENT. THE FLT MANUAL NOTED: WHEN POWER IS ADVANCED FOR A GO-AROUND FROM A LOW POWER, FULL FLAP APPROACH, A NOSE DOWN PITCH WILL OCCUR WHICH MUST BE COUNTERED WITH AFT CONTROL INPUT.

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: single-engine land; instrument: airplane
  • Flight time: 890 hours in all; 114 in this make and model; 4 in the last 90 days; 597 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 540 hours
  • Last inspection: 100-hour inspection; 6 hours since
  • Maximum gross weight: 3,400 lb
  • Seats: 7
  • Landing gear: retractable
  • Engine: Lycoming TIO-540-K1G5D (piston); 0 hours total

The flight

  • Departed from: DET Detroit MI at 8:30 pm
  • Flight plan: none
  • Runway 23, 5,100 ft by 100 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: broken clouds at 3,500 ft; not recorded at 3,500 ft
  • Temperature: 45°F (7°C), dew point 30°F (-1°C)
  • Altimeter: 29.00 inHg
  • Observation at 10:00 pm from MTC, 22 miles away

Injuries

FatalSeriousMinorNone
Crew11

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.