CEN11IA180 · Hawker Beechcraft Corp. C90
Aero Sim Flight Academy Hawker Beechcraft Corp. C90 · Incident: system/component malfunction/failure (non-power) en route
From University of Illinois Willard Airport (CMI) to Orlando Sanford International Airport (SFB)
Narrative check · The NTSB narrative appears to contradict this record's departure or destination. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- CEN11IA180
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Incident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Hawker Beechcraft Corp. C90
- Aircraft type
- Beechcraft 90
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N2057C
- Operator
- Aero Sim Flight Academy
- Onboard fatalities
- Unknown
- Route Narrative disagrees
- From University of Illinois Willard Airport (CMI), Champaign/Urban, ILTo Orlando Sanford International Airport (SFB), Orlando, FL
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- En route · climb to cruise
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- System/component malfunction/failure (non-power)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Cause areas
- Aircraft › Aircraft structures
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
During the initial climb after takeoff, the inner ply of the co-pilot’s windshield in the pressurized turboprop airplane shattered. The remainder of the windshield was not shattered. The pilot diverted and landed without further incident. Microscopic examination of the windshield's crack initiation area revealed an expanding triangular or v-shaped area emanating from a single point, consistent with a peel chip. The peel chip-type fracture of the inner ply of glass has historically been an issue on the King Air windshield and the window manufacturer made a product improvement to it. The windshield improvement incorporated a urethane layer between the vinyl interlayer and the inner glass ply that relieves stresses on the inner glass ply and prevents peel chip fractures. This airplane did not have the improved windshield. To date, there has not been a peel chip type fracture with the improvement in place.
Probable cause
The peel chip-type failure of the co-pilot's window during initial climb.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN11IA180
- Event ID
- 20110209X73116
- Case number
- CEN11IA180
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 6e7fecfc305e6230d79a7f850cba321aee8f5f100fedaf6db16c5d2e64705c3e; retrieved 2026-09-15T15:47:52.266Z.