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Accidents · NTSB SEA89LA025 · Preliminary: the investigation is not finished

Cessna 177RG accident near Monroe, Washington, December 15, 1988

On December 15, 1988 at about 1:10 am local time, a Cessna 177RG, registered N51386, was substantially damaged in an accident near Monroe, Washington (Firstair airport). It was a business 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
December 15, 1988 · about 1:10 am local time
Place
Monroe, Washington · Firstair · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 177RG · all 177RGs on the register
Registration
N51386 · registry record · serial 1138
Damage
Substantial damage
Flight
Business flight · general aviation rules (Part 91)

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

PLT WAS LNDG ON UNLIT STRIP (CENTER REFLECTORS) AT NIGHT AND ALLOWED ACFT TO DRIFT LEFT ON LNDG ROLL. ACFT CONTACTED DIRT MOUND ADJACENT TO RUNWAY.

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: 618 hours in all; 64 in this make and model; 33 in the last 90 days; 12 in the last 30 days
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 3,701 hours
  • Last inspection: annual inspection, July 20, 1988; 78 hours since
  • Maximum gross weight: 2,800 lb
  • Seats: 4
  • Landing gear: retractable
  • Engine: Lycoming IO-360-A1B6D (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 25, 1,800 ft by 30 ft

Weather at the time

  • Light: night, bright
  • Wind: from 320° at 7 knots
  • Visibility: 75 statute miles
  • Sky: clear
  • Temperature: 37°F (3°C), dew point 27°F (-3°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.