FTW83FA221 · Beech E33
Beech E33 · Accident: total loss of engine power (mechanical failure) on approach
From Houston Airpark (21XS) to Austin Bergstrom International Airport (AUS)
Event
- NTSB case
- FTW83FA221
- 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
- Accident
- 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
- 0
- 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
Beech E33
- Aircraft type
- Beechcraft 33
- 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
- N8314N
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Houston Airpark (21XS), Big Spring, TXTo Austin Bergstrom International Airport (AUS), Austin, TX
- 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
- Approach · VFR pattern final
- First occurrenceThe 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
- Total loss of engine power (mechanical failure)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Engine assembly, connecting rod › Failure, total
- Fluid, oil › Starvation
- Lubricating system, oil line › Fatigue
- Lubricating system, oil line › Incorrect
- Other maintenance personnel › Maintenance, replacement, improper
Approximate · Estimated position: the centre of San Angelo, TX, the place the record names. Not the accident site.
NTSB narrative
THE ENG FAILED IN FLT & THE ACFT CRASHED 1 MI SHORT OF RWY 18 DURING AN EMERGENCY LANDING INTO MATHIS ARPT. THE ACFT'S FUSELAGE WAS STREAKED WITH FRESH OIL. THE RIGID OIL PRESSURE LINE, EXTENDING FROM THE ENG TO THE FIREWALL, FAILED DUE TOFATIGUE CRACKING FROM MULTIPLE ORIGINS ON OPPOSITE SIDES OF THE OUTSIDE DIAMETER OF THE LINE AT THE BEGINNING OF A HEAVILY FLARED RADIUS. THE PARTS CATALOG FOR THE BE-E33 REQUIRES A FLEXIBLE HOSE. THE ENG HAD BEEN OVERHAULED ON 7/20/82, 121 HRS PRIOR TO THE ACCIDENT. IT IS NOT KNOWN WHEN THE RIGID LINE WAS INSTALLED IN PLACE OF FLEXIBLE HOSE. AS A RESULT OF THE OIL STARVATION THE #4 CONROD FAILED.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record FTW83FA221
- Event ID
- 20001214X42966
- Case number
- FTW83FA221
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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: c7bcc76ea4365f2c1ddbc602c658703cb4cb30ab9d01ea76cb66eb0d8e387330; retrieved 2026-09-23T22:18:35.662Z.