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Accidents · NTSB ERA11FA431 · Final report

Beech G35 accident near Byron, Georgia, July 31, 2011

On July 31, 2011 at about 5:19 pm local time, a Beech G35, registered N156RP, was substantially damaged in an accident during enroute (descent) near Byron, Georgia. It was a personal flight under general aviation rules (Part 91). 1 person was killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot’s sustained flight at airspeeds in excess of the airplane's never exceed speed during a steep descent, which resulted in a subsequent in-flight structural failure due to overstress.

Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 31, 2011 · about 5:19 pm local time · cases in 2011
Place
Byron, Georgia · map
Type
Accident
Injuries
1 person was killed.
Weather
visual conditions (good weather)
Aircraft
Beech G35 · all G35s on the register
Registration
N156RP · no longer on the register · serial D-4492
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

During a cross-country flight, about 9,200 feet mean sea level, the pilot cancelled his visual flight rules flight following and descended toward the destination airport. Review of the radar data showed the airplane descending from 9,200 feet at a rate of 2,000 feet per minute and a ground speed of 180 knots. At an altitude of about 3,000 feet, the ground speed was 178 knots and radar contact was lost. No radio transmissions were received from the pilot after radar contact was lost. Witnesses who were working in a field said they heard a loud "popping" sound. They looked up and saw an airplane and what looked like a wing separating from it. They continued to watch the airplane as it began to spin before crashing into the ground. Examination of the airplane revealed that the airplane wings had experienced high positive forces when the stabilizers broke in a downward direction. Once the stabilizers broke, the airplane immediately pitched down and changed rapidly from a high positive angle of attack (AOA) to a high negative AOA. The high negative air loads on the wings caused the right wing to break in a downward direction and caused the left wing and fuselage to rotate left wing down. Further breakup analysis indicated that there was no specific evidence of flutter. A review of the airplane flight manual revealed the never-exceed speed (VNE) for calculated and indicated airspeed was 176 knots. During the postaccident examination of the airspeed indicator, the indicator needle was stuck at the 192 mph position. It is likely that as a result of the continued flight beyond the VNE envelope during a steep descent to the destination airport, the airplane broke up in flight due to the airplane exceeding the design limits.

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

  1. Aircraft structural failure during enroute (descent) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent

The NTSB's findings

  • cause Personnel issues › Action/decision › Action › Incorrect action performance › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Airspeed › Capability exceeded
  • cause Aircraft › Aircraft structures › Fuselage › Fuselage main structure › Failure other cases naming the airframe structure

Pilot

  • Certificate: private
  • Ratings: single-engine land
  • Flight time: 400 hours in all; 140 in this make and model
  • Medical certificate: Class 3 (without waivers/limitations)
  • Seat: unk
  • Injury: fatal

The aircraft

  • Airframe total time: 4,172 hours
  • Last inspection: annual inspection, June 4, 2011
  • Maximum gross weight: 3,650 lb
  • Seats: 3
  • Landing gear: retractable
  • Engine: Cont Motor E225 SERIES (piston); 0 hours total

The flight

  • Departed from: DVK Danville KY at 3:19 pm
  • Destination: PXE Perry GA
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 320° at 9 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 95°F (35°C), dew point 72°F (22°C)
  • Altimeter: 30.00 inHg
  • Observation at 5:55 pm from WRB, 11 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

39 documents, released by the NTSB on October 17, 2012. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

#DocumentWhat it is
1 Global Positioning System Device - Specialist's Factual Report PDF, 7 pages View Download
2 Global Positioning System Device - Specialist's Factual Report - Attachment 1 data file Download
3 radar Plot 1 and Data PDF, 3 pages View Download
4 radar Plot 2 and Data PDF, 4 pages View Download
5 radar Plot 3 and Data PDF, 3 pages View Download
6 Reports from Federal Agencies-atc Accident Package Excerpts PDF, 16 pages View Download
7 Witness Statements PDF, 3 pages View Download
8 Wreckage Plot PDF, 1 page View Download
9 Other Pertinent Forms and Reports-avemco Pilot Application PDF, 2 pages View Download
10 Aircraft Logbook Excerpts PDF, 8 pages View Download
11 Other Pertinent Forms and Reports-airworthiness Directive 94-20-04 PDF, 9 pages View Download
12 Airworthiness Directive 97-06-11 PDF, 5 pages View Download
13 Service Bulletin No. 2188 PDF, 5 pages View Download
14 Service Bulletin No. 2242 PDF, 7 pages View Download
15 Service Bulletin No. 2605 PDF, 4 pages View Download
16 Service Bulletin No. 2668 PDF, 9 pages View Download
17 Service Instructions No. 0989 PDF, 3 pages View Download
18 Bonanza G35 AFM Excerpt PDF, 5 pages View Download
19 Toxicology Report PDF, 1 page View Download
20 Retention / Release of Wreckage Form PDF, 1 page View Download
21 Evidence Control Form PDF, 1 page View Download
22 Statement of Party Representatives to NTSB Investigation-beechcraft PDF, 1 page View Download
23 Statement of Party Representatives to NTSB Investigation-continental PDF, 1 page View Download
24 Statement of Party Representatives to NTSB Investigation-hartzell PDF, 1 page View Download
25 Photo 1-MAIN Wreckage Forward View PDF, 1 page View Download
26 Photo 2-MAIN Wreckage Top View PDF, 1 page View Download
27 Photo 3-FORWARD Cabin Section PDF, 1 page View Download
28 Photo 4-EMPENNAGE Section PDF, 1 page View Download
29 Photo 5-LEFT Ruddervator PDF, 1 page View Download
30 Photo 6-UNDERSIDE of Left Wing PDF, 1 page View Download
31 Photo 7-INBOARD Underside of Left Wing PDF, 1 page View Download
32 Photo 8-LEFT Side of Fuselage and Wing Root PDF, 1 page View Download
33 Photo 9-RIGHT Wing Underside PDF, 1 page View Download
34 Photo 10- Right Side Ruddervator PDF, 1 page View Download
35 Photo 11-TOP Side of Right Wing PDF, 1 page View Download
36 Photo 12-RIGHT Side of Fuselage PDF, 1 page View Download
37 Photo 13-RIGHT Side of Cockpit PDF, 1 page View Download
38 Photo 14-AIRSPEED Indicator PDF, 1 page View Download
39 Photo 15-ENGINE and Propeller PDF, 1 page View Download

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/ERA11FA431.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.