Lark Aviation IS28B2 accident near Issaquqh, Washington, January 29, 1984
On January 29, 1984 at about 11:30 pm local time, a Lark Aviation IS28B2 (glider), registered N4014B, was substantially damaged in an accident near Issaquqh, Washington. It was an instructional 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
- January 29, 1984 · about 11:30 pm local time
- Place
- Issaquqh, Washington · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Lark Aviation IS28B2
- Registration
- N4014B · no longer on the register · serial 91
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE CFI STATED THAT WHILE RETURNSING TO THE AIRPORT HE ENCOUNTERED TURBULENCE. WHEN IT BECAME OBVIOUS THAT REACHING THE INTENDED AIRPORT WOULD BE MARGINAL ANOTHER LANDING FIELD WAS CHOSEN. DURING TURN TO FINAL, THE LEFT WING TIP STRUCK A POWER POLE AND THE ACFT PANCAKED INTO AN ADJACENT PASTURE.
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: flight instructor, commercial pilot
- Ratings: instructor: glider; rotorcraft: glider
- Flight time: 3,500 hours in all; 3,500 in this make and model; 18 in the last 90 days; 3,500 as pilot in command; 3,500 on instruments
- Medical certificate: None
- Seat: frt
The aircraft
- Airframe total time: 1,322 hours
- Last inspection: 100-hour inspection, December 1, 1983; 16 hours since
- Maximum gross weight: 727 lb
- Seats: 2
- Landing gear: fixed
- Engine: None NONE (type not recorded); 0 hours total
The flight
- Departed from: 3WA1 Issaquah WA
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 190° at 10 knots
- Visibility: 10 statute miles
- Sky: broken clouds at 1,900 ft; not recorded
- Temperature: 55°F (13°C), dew point 46°F (8°C)
- Altimeter: 30.00 inHg
- Observation at 11:47 pm from BFI, 8 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 2 |
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.