North American T28C accident near Sherman Oaks, California, May 24, 2003
On May 24, 2003 at about 7:25 pm local time, a North American T28C, registered N537Z, was destroyed in an accident near Sherman Oaks, California (Van Nuys airport). It was a personal flight under general aviation rules (Part 91). 2 people were killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot's in-flight loss of control due to spatial disorientation. Factors in the accident were the distraction caused by the malfunctioning mode C altitude reporting system, and the location of the transponder control head, which necessitated repeated pilot head movements to the right and down while in instrument meteorological conditions.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 24, 2003 · about 7:25 pm local time
- Place
- Sherman Oaks, California · Van Nuys · map
- Type
- Accident
- Injuries
- 2 people were killed.
- Weather
- visual conditions (good weather)
- Aircraft
- North American T28C · all T28Cs on the register
- Registration
- N537Z · no longer on the register · serial 140537
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
On a standard instrument departure procedure, the airplane came out of the clouds in a steep, nose down, inverted attitude and collided with terrain. The weather at the departure airport was 1,700-foot overcast with the tops ranging from about 4,000 to 4,500 feet. The mode C altitude reporting system on board the airplane initially was reporting 1,400 msl, but the pilot reported climbing out of 2,300 msl. Air traffic control made numerous queries about the altitude anomalies and repeatedly asked the pilot to recycle the transponder. In this aircraft, the transponder control head was mounted on the lower right side avionics rail abeam the pilot's seat back. The pilot would have to look down, to the right, and aft to alter any settings on the transponder during flight. The airplane was climbing on a southeasterly course. After a minute ATC issued a left turn to 040 degrees. The pilot acknowledged the course change, but the recorded radar track continued in a southeasterly direction until its last recorded point. Twenty-three seconds after the pilot acknowledged the course change and reported leaving 3,000 feet, he asked ATC if it was a left or right turn to 040. ATC instructed the pilot to turn off the transponder's mode C function. There were no further recorded transmissions from the pilot. The last recorded mode C data occurred 17 seconds after the pilot's last transmission. The mode C altitude reports from the airplane varied from 1,300 feet to a high of 4,100 feet, and erratically fluctuated between those values. The airplane came out of the clouds in a steep, nose down, inverted position, and heading in a northeasterly direction. The wreckage was located north of the last recorded radar position.
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: multi-engine land; single-engine land; instrument: airplane
- Flight time: 2,350 hours in all; 850 in this make and model
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: frt
- Injury: fatal
The aircraft
- Airframe total time: 8,675.7 hours
- Last inspection: condition inspection, March 14, 2003
- Maximum gross weight: 9,000 lb
- Seats: 2
- Landing gear: retractable
- Engine: Wright R-1820-86B (piston); 0 hours total
- Fire on the ground
The flight
- Departed from: VNY Van Nuys CA at 7:22 pm
- Destination: TRM Thermal CA
- Flight plan: IFR
Weather at the time
- Light: daylight
- Wind: from 150° at 5 knots
- Visibility: 5 statute miles
- Sky: overcast at 1,700 ft
- Temperature: 63°F (17°C), dew point 55°F (13°C)
- Altimeter: 29.94 inHg
- Observation at 7:24 pm from VNY, 5 miles away
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.
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.
