Flight Training Conducted in Unairworthy TB-9 Aircraft at Jasion…

Flight Training Conducted in Unairworthy TB-9 Aircraft at Jasionka

Casualties unknown • EPRJ/OKL P.Rzeszowskiej, PL

A training flight was performed using a TB-9 aircraft that lacked required maintenance documentation and airworthiness certification.

What happened

On September 30, 2018, a training flight was conducted at Jasionka Airport (EPRJ) using a TB-9 aircraft, registration SP-TUO, operated by Politechnika Rzeszowska. The aircraft had undergone a major inspection (80A – 2000h) and an engine overhaul the previous day. Following the successful test flight, the instructor instructed the technical department to prepare the necessary aircraft documentation for the following day's scheduled training sessions. However, the aircraft was operated without the required maintenance release (CRS) or the necessary maintenance signatures. Additionally, the instructor failed to complete the Aircraft Technical Log (PDT) prior to the flight.

The investigation

The PKBWL investigation focused on the airworthiness status of the aircraft and the failure to verify documentation. The investigation established that while the aircraft had been physically inspected and flight-tested, the administrative maintenance package remained unclosed. The investigation also noted that the aircraft was being used in a manner that violated the Polish Aviation Law, specifically regarding the requirement that an aircraft must be operated in accordance with applicable regulations.

Findings

The aircraft was not in an airworthy status due to the absence of a completed maintenance package and required signatures.
The instructor failed to verify the completeness of the aircraft documentation before commencing flight operations.
The aircraft was operated in violation of aviation regulations regarding airworthiness and documentation standards.
The operator'1s internal safety management system (SMS) was noted to have potential issues regarding organizational culture and safety standards.

Probable cause

The primary cause was the failure of the instructor to verify the aircraft's maintenance documentation and the failure of the technical department to provide the necessary airworthiness release, resulting in the operation of an aircraft that did not meet regulatory requirements.

Frequently asked questions

What happened in the 2018-09-30 SOCATA, TB-9 Tampico accident near EPRJ/OKL P.Rzeszowskiej, PL?

A training flight was performed using a TB-9 aircraft that lacked required maintenance documentation and airworthiness certification.

What aircraft was involved and where did it happen?

The accident on 2018-09-30 involved a SOCATA, TB-9 Tampico, registration SP-TUO, at EPRJ/OKL P.Rzeszowskiej, PL.

What was the probable cause of the accident?

The primary cause was the failure of the instructor to verify the aircraft's maintenance documentation and the failure of the technical department to provide the necessary airworthiness release, resulting in the operation of an aircraft that did not meet regulatory requirements.

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