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| Date: | Thursday 10 April 2025 |
| Time: | 15:07 UTC |
| Type: |  Jabiru SP |
| Owner/operator: | |
| Registration: | ZU-OIL |
| MSN: | 370 |
| Total airframe hrs: | 838 hours |
| Engine model: | Jabiru 2200A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | 3 nm east of Wonderboom (FAWB) -
 South Africa
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | Pretoria-Wonderboom Airport (PRY/FAWB) |
| Pretoria-Wonderboom Airport (PRY/FAWB) | |
| Investigating agency: | CAA S.A. |
| Confidence Rating: |  Accident investigation report completed and information captured |
A Jabiru SP with registration ZU-OIL took off on a training flight from Wonderboom Aerodrome (FAWB).
The flight instructor stated that they were airborne for approximately 30 minutes before they returned to FAWB after which they performed touch-and-go circuits on Runway 29. Shortly after rotation, the crew noted that the oil pressure indication had decayed, but the oil temperature remained constant.
They turned on to right crosswind leg to join the circuit traffic whilst they monitored the oil pressure; they were number three for landing on Runway 29 as another aircraft which had experienced a radio failure was being escorted ahead of them. Whilst turning right base leg, the engine ran rough and stopped. The flight instructor broadcasted a Mayday call. At the time of the Mayday broadcast, the crew was 3 nautical miles (nm) from the threshold of Runway 29 and, thus, had to perform a forced landing on a field they had identified. The aircraft touched down on a field with overgrown grass (approximately 1 metre in height). Approximately 20m after touchdown, the nose gear collapsed, and the aircraft nosed over and came to rest in an inverted attitude. The aircraft sustained substantial damage. No person was injured during the accident.
Probable Cause
The aircraft nosed over during a forced landing on a field after the engine had stopped operating. The cause of engine stoppage was attributed to the oil hose (P/N: PH089BN) fitted between the oil filter and the oil cooler that burst, resulting in engine oil being pumped overboard and, ultimately, the engine stoppage.
Contributing Factors
1. The oil hose was exposed to intense heat as it was in proximity to the exhaust assembly (approximately 30mm). The heat sleeve (orange in colour, which was fitted over the oil hose) did not cover the area where the hose attaches to the oil cooler (area where it burst).
2. The AP stated during an interview that he had bought the hose from a wholesale store that specialises in hydraulic hoses and other associated equipment.
3. The OEM of the hose (oil) indicated that the product was not suitable for use on aircraft or vehicles.
Accident investigation:
 |
|
Sources:
SACAA
History of this aircraft
Other occurrences involving this aircraft
| 28 November 2012 | ZU-OIL | 0 | Runway 03 at Springs Aerodrome | |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Jul-2025 11:37 | ASN | Added |
| 12-Jul-2025 11:41 | ASN | Updated [Aircraft type, Location, Departure airport, Destination airport, Narrative, ] |
Corrections or additions? ... Edit this accident description
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