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Accidents · NTSB NYC87LA133 · Preliminary: the investigation is not finished

Piper PA-28-180 accident near W.Mifflin, Pennsylvania, April 25, 1987

On April 25, 1987 at about 9:38 pm local time, a Piper PA-28-180, registered N7726W, was substantially damaged in an accident near W.Mifflin, Pennsylvania (Allegheny CO. airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. 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 25, 1987 · about 9:38 pm local time
Place
W.Mifflin, Pennsylvania · Allegheny CO.
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper PA-28-180 · all PA-28-180s on the register
Registration
N7726W · registry record · serial 28-1733
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

PILOT MADE A LANDING ON RUNWAY 10 AT THE ALLEGHENY COUNTY AIRPORT, HOWEVER DURING LANDING ROLL THE PILOT LOST DIRECTIONAL CONTROL OF THE AIRCRAFT. THE ACFT SWERVED RIGHT AND COLLIDED WITH A CAST IRON SEWER THAT WAS RAISED ABOUT 6' ABOVE THE GROUND.

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: private
  • Ratings: single-engine land; instrument: airplane
  • Flight time: 5,000 hours in all; 825 in this make and model; 10 in the last 90 days; 5,000 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 1,663 hours
  • Last inspection: annual inspection, November 21, 1986; 8 hours since
  • Maximum gross weight: 2,175 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-360-A3A (piston); 0 hours total

The flight

  • Departed from: AGL Pittsburgh PA at 10:00 pm
  • Flight plan: none
  • Runway 10, 6,500 ft by 150 ft

Weather at the time

  • Light: daylight
  • Wind: from 040° at 8 knots
  • Visibility: 20 statute miles
  • Sky: not recorded; clear
  • Temperature: 61°F (16°C), dew point 0°F (-18°C)
  • Altimeter: 30.00 inHg

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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.