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).
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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 October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- February 18, 2021 · about 3:30 am local time
- 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
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 | |
|---|---|---|---|---|
| Flig | 1 | |||
| Passengers | 1 |
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CEN21LA132.