Cessna 172M accident near Santa Monica, California, August 29, 2011
On August 29, 2011 at about 9:27 pm local time, a Cessna 172M, registered N5155Q, was substantially damaged in an accident during approach (VFR go-around) near Santa Monica, California (Santa Monica Municipal airport). It was an instructional flight under general aviation rules (Part 91). 1 person was seriously injured. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The student pilot’s misjudged approach and landing attempt. Contributing to the accident was a lack of airspeed due to a blocked pitot tube.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 29, 2011 · about 9:27 pm local time
- Place
- Santa Monica, California · Santa Monica Municipal · map
- Type
- Accident
- Injuries
- 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 172M · all 172Ms on the register
- Registration
- N5155Q · no longer on the register · serial 17261768
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The student pilot reported that shortly after liftoff, the airspeed indicator needle showed an increase and then a decrease to zero. He realized that the airplane’s airspeed indicator was not operational and advised the air traffic control tower controller. As the pilot returned to land at the airport, the airplane was higher than normal above the runway surface. With a quarter of the runway remaining, the airplane had not touched down. The air traffic control tower controller advised the pilot to go around. The pilot initiated a go-around; however, the airplane impacted trees and a house. The student pilot, as well as his flight instructor, reported that his flight instruction did not include operations simulating a loss of airspeed indication. Although the student pilot reported checking the pitot tube prior to departure, postaccident examination of the airplane’s pitot tube showed that debris, consistent with soil and insect material, was present between the ram air inlet and the drain hole. This resulted in the airspeed indicator showing zero airspeed. Review of the air traffic control services related to the accident revealed that they did not cause or contribute to the accident. The local controller’s actions were reasonable and in accordance with Federal Aviation Administration (FAA) Order 7110.65, “Air Traffic Control”: the local controller handled the situation in accordance with his best judgment based on his perceptions and understanding of the situation.
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
What happened, in order
- Flight instrument malf/fail during initial climb
- Loss of lift during approach (VFR go-around)
- Aerodynamic stall/spin during approach (VFR go-around) defining event
- Collision with terrain or object (not controlled flight into terrain) during approach (VFR go-around)
The NTSB's findings
- cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Descent/approach/glide path › Not attained/maintained
- cause Personnel issues › Action/decision › Action › Incorrect action performance › Student pilot
- factor Aircraft › Aircraft systems › Navigation system › Pitot/static system › Malfunction
Dual student
- Certificate: student
- Flight time: 48 hours in all; 48 in this make and model; 11 in the last 90 days; 3 in the last 30 days; 13 as pilot in command
- Medical certificate: Class 1 (without waivers/limitations)
- Seat: left
- Injury: serious injuries
The aircraft
- Airframe total time: 8,227 hours
- Last inspection: annual inspection, August 5, 2011; 27 hours since
- Maximum gross weight: 2,300 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming O-320-E2D (piston); 0 hours total
- Operator: Justice Aviation
The flight
- Departed from: SMO Santa Monica CA at 9:23 pm
- Destination: SBA Santa Barbara CA
- Flight plan: none
- Runway 21, 4,973 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 210° at 8 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 70°F (21°C), dew point 61°F (16°C)
- Altimeter: 29.80 inHg
- Observation at 9:27 pm from SMO, 1 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 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.
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.