Beech B100 accident near Lubbock, Texas, February 18, 2021
On February 18, 2021 at about 3:30 am local time, a 1981 Beech B100, registered N312MB, was substantially damaged in an accident during enroute (cruise) near Lubbock, Texas. It was a business 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).
The NTSB's probable cause their words, unchanged
The failure of the right-side window inner pane for reasons that could not be determined based on available evidence.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- February 18, 2021 · about 3:30 am local time · cases in 2021
- Place
- Lubbock, Texas · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Beech B100, built 1981 · all B100s on the register
- Registration
- N312MB · registry record · serial BE-113
- Damage
- Substantial damage
- Flight
- Business flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
About an hour after departure, while the airplane was in cruise flight, the pilot and passenger heard a “cracking noise” and noticed that the right windshield had cracked. The windshield remained in place and pressurization was not lost. The pilot notified the air traffic controller that he had a cracked windshield and diverted to a nearby airport. The airplane landed uneventfully and examination revealed substantial cracking damage to the right-side windshield inner pane. The windshield was disposed of before further testing could be performed to determine the failure mode.
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
- Miscellaneous/other during enroute (cruise) defining event
The NTSB's findings
- Aircraft › Aircraft structures › Windows › windshield system › Flight compartment windows › Failure other cases naming the airframe structure
Pilot
- Certificate: airline transport pilot, flight instructor, commercial pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
- Flight time: 5,700 hours in all; 595 in this make and model; 105 in the last 90 days; 50 in the last 30 days; 3,900 as pilot in command; 650 on instruments
- Last flight review: January 25, 2021
- Medical certificate: Class 1 (with waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 8,886.8 hours
- Last inspection: continuous airworthiness programme, July 23, 2020
- Seats: 11
- Landing gear: retractable
- Engine 1: Garrett TPE331-6 (turboprop); 0 hours total
- Engine 2: Garrett TPE331-6 (turboprop); 0 hours total
- Operator: N312Mb LLC
The flight
- Departed from: KALM Alamogordo NM
- Destination: KRBD Dallas TX
- Flight plan: IFR
Weather at the time
- Light: night
- Wind: from 050° at 7 knots
- Visibility: 7 statute miles
- Sky: broken clouds at 1,300 ft
- Temperature: 16°F (-9°C), dew point 12°F (-11°C)
- Altimeter: 30.07 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Photographs from the investigation 1 picture from the NTSB's docket, as the NTSB released them
The NTSB's photographs with the NTSB's captions, at screen size. Open a picture to see it full size or to report one that should not be shown.
Documents from the investigation the NTSB's docket: the evidence folder behind the report
3 documents, released by the NTSB on January 3, 2022. 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.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 11 pages | View Download |
| 2 | Photo | PDF, 1 page · our copy | View Download |
| 3 | Ppg Email | 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
- N312MB on the register today · the tail number may have moved to another aircraft since
- Beechcraft B100 58 registered today · the model family and its accident history
- Beechcraft 6 aircraft on the register
- Engine: Garrett TPE331-6 6 aircraft carry this series today · as the NTSB recorded it
- Engine: Garrett TPE331-6 6 aircraft carry this series today · as the NTSB recorded it
- Alamogordo-White Sands Regional · departed from
- Dallas Executive · bound for
- Accidents and incidents in Texas 6,244 since 1982 · 1,065 in the last ten years
- Texas 29,945 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/CEN21LA132.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.