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Accidents · NTSB DFW05FA020 · Final report

Piper PA-31-350 accident near San Antonio, Texas, November 14, 2004

On November 14, 2004 at about 11:18 pm local time, a Piper PA-31-350, registered N40731, was destroyed in an accident near San Antonio, Texas (San Antonio Intl airport). It was a personal flight under general aviation rules (Part 91). 5 people were killed. The weather was instrument conditions (cloud, fog or low visibility).

The NTSB's probable cause their words, unchanged

The pilot's failure to maintain control during an ILS approach. Contributing factors were the prevailing instrument meteorological conditions( clouds, low ceiling and drizzle/mist), and the pilot's spatial disorientation.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
November 14, 2004 · about 11:18 pm local time
Place
San Antonio, Texas · San Antonio Intl · map
Type
Accident
Injuries
5 people were killed.
Weather
instrument conditions (cloud, fog or low visibility)
Aircraft
Piper PA-31-350 · all PA-31-350s on the register
Registration
N40731 · no longer on the register · serial 31-8152003
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

The twin-engine airplane collided with a residential structure and terrain following a loss of control after the pilot experienced difficulties maintaining course during an Instrument Landing System (ILS) approach while on instrument meteorological conditions. The impact occurred approximately 3.7 miles short of the approach end of the runway. Radar data depicted that after the 8,700-hour commercial pilot was vectored to the ILS Runway 3 approach, the airplane remained left throughout the approach before turning right of the localizer approximately 2 miles before the final approach fix (FAF). Radar then showed the aircraft turn to the left of course line. When the aircraft was abeam the FAF, it was approximately 1 mile left of the course line. As the aircraft closed to approximately 1.5 miles from the runway threshold, the aircraft had veered about 1.3 miles left of the course line (at which time air traffic control instructed the pilot to turn left to a heading of 270 degrees). The aircraft continued to turn left through the assigned heading and appeared to be heading back to the ILS course line. According to the radar, another aircraft was inbound on the ILS course line and Air Traffic Control Tower (ATCT) instructed the pilot to turn left immediately. Thereafter, the aircraft went below radar coverage. A witness, located approximately 1.25 miles northwest of the accident site, reported that he heard a very loud noise, and then observed an airplane flying toward a building, approximately 60 feet in height. The airplane was observed to have pitched-up approximately 45 - 90 degrees just before the building and disappeared into the clouds. A second witness located approximately 1 mile northwest of the accident site reported that he heard a low flying aircraft, and then observed a white twin-engine airplane banking left out of the clouds. The airplane leveled out, and flew into the clouds again a few seconds later. The witness stated that the airplane was at an altitude of 100-200 feet above the ground. A third witness located adjacent to the accident site reported that they heard the sound of a low flying airplane in the distance. As the sound became louder and louder, they looked up and observed the airplane in a near vertical attitude as it impacted trees and the side of an apartment complex. Examination of the airplane did not reveal any pre-impact mechanical anomalies. A weather observation taken approximately 15 minutes after the accident included a visibility 4 statue miles, light drizzle and mist, and an overcast ceiling at 400 feet.

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: 8,590 hours in all
  • Last flight review: July 31, 2004
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: left
  • Injury: fatal

The aircraft

  • Airframe total time: 2,248.7 hours
  • Last inspection: annual inspection, July 31, 2004
  • Maximum gross weight: 7,000 lb
  • Seats: 7
  • Landing gear: retractable
  • Engine 1: Lycoming TSIO-540-J2B (piston); 0 hours total
  • Engine 2: Lycoming LTIO-540-J2B (piston); 0 hours total
  • Fire on the ground

The flight

  • Departed from: DDC Dodge City KS at 7:45 pm
  • Destination: SAT San Antonio TX
  • Flight plan: IFR
  • Runway 3, 7,505 ft by 150 ft

Weather at the time

  • Light: dusk
  • Wind: from 050° at 9 knots
  • Visibility: 4 statute miles
  • Sky: overcast at 400 ft; ovct at 400 ft
  • Temperature: 54°F (12°C), dew point 52°F (11°C)
  • Altimeter: 30.28 inHg
  • Observation at 11:32 pm from SAT, 3 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers4

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.