# Accident 19910126000989A: Blanca 1730A, Olton, TX, January 26, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 26, 1991, 16:25 local time
- Place: Olton, TX
- Airport: Del Tex Airport
- Damage: Destroyed
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 34.1699° N, 102.1307° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=34.1699&lon=-102.1307&mi=10
- Aircraft: N4035B, a cancelled registration (https://openairdocs.org/deregistered/N4035B-2014-10-06) (OpenAirDocs)
- Registry model: Bellanca 17-30A (registry code 1220433, https://openairdocs.org/model/bellanca-17-30a) (OpenAirDocs)
- Registry engine: Continental IO-520 series (registry code 17032, https://openairdocs.org/engine/continental-io-520-series) (OpenAirDocs)
- Reported make and model: BLANCA 1730A
- Reported engine: CONT IO520K
- People aboard: 1
- Fatal injuries: 1
- Pilot flight hours: 8,955 total
- NTSB investigation: [NTSB DEN91FA037](https://openairdocs.org/ntsb/DEN91FA037) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910126000989A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON TEST FLIGHT WAS OBSERVED DOING A SPLIT S AEROBATIC MANEUVER. WING SPAR BROKE CAUSING VERTICAL DIVE TO IMPACT.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DEN91FA037](https://openairdocs.org/ntsb/DEN91FA037), Jan 26, 1991: Bellanca 17-30A (N4035B), Olton, TX, destroyed, 1 fatal. Probable cause: THE PILOT EXCEEDED THE DESIGN STRESS LIMITS OF THE AIRFRAME AND THE PERFORMANCE OF AEROBATICS AT AN ALTITUDE INSUFFICIENT FOR RECOVERY.

## Other reports on N4035B (2)

Matched to the same aircraft by N-number and date.

- [Incident 19900707032129I](https://openairdocs.org/incident/19900707032129I), Jul 7, 1990: Blanca 1730A (N4035B), San Marcos, TX, Minor damage. Student lost directional control after making third solo landing. Veered off runway.
- [Incident 19801226088079I](https://openairdocs.org/incident/19801226088079I), Dec 26, 1980: Blanca 1730A (N4035B), Hobbs, NM, Minor damage. Unable to extend nose gear before landing. Found bad gear motor amature.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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