Cessna 172 RGII accident near Seattle, Washington, February 10, 1984
On February 10, 1984, a Cessna 172 RGII, registered N9557B, was substantially damaged in an accident near Seattle, Washington (Boeing Field). 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).
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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 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- February 10, 1984
- Place
- Seattle, Washington · Boeing Field
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 172 RGII · all 172 RGIIs on the register
- Registration
- N9557B · registry record · serial 172RG0879
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
DURING A TAKEOFF AFTER A TOUCH AND GO LANDING THE NOSE GEAR RETRACTED AT ABOUT THE TIME OF ROTATION. POWER WAS REDUCED TO IDLE AND THE ACFT SLID TO A STOP. THIS ACFT IS EQUIPPED WITH SQUAT SWITCHES WHICH PREVENT GEAR RETRACTION WHEN THE WEIGHT OF THE ACFT COMPRESSES THE STRUTS. TESTING DO NOT REVEAL ANY MALFUNCTION OF THE RETRACTION SYSTEM.
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: 629 hours in all; 58 in this make and model; 9 in the last 90 days; 411 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: rgt
The aircraft
- Airframe total time: 640 hours
- Last inspection: 100-hour inspection, July 13, 1983; 106 hours since
- Maximum gross weight: 2,650 lb
- Seats: 4
- Landing gear: retractable
- Engine: Lycoming O-360-F1A6 (piston); 0 hours total
The flight
- Departed from: BFI Seattle WA
- Flight plan: none
- Runway 13L, 10,000 ft by 200 ft
Weather at the time
- Light: daylight
- Wind: from 200° at 14 knots, gusting 20
- Visibility: 10 statute miles
- Sky: broken clouds at 8,000 ft; scat at 5,000 ft
- Temperature: 52°F (11°C), dew point 36°F (2°C)
- Altimeter: 29.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
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.
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number SEA84LA051.