ASN Wikibase Occurrence # 249484
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| Date: | Wednesday 31 March 2021 |
| Time: | 11:20 UTC |
| Type: |  TL Ultralight TL-3000 Sirius |
| Owner/operator: | |
| Registration: | PH-4S1 |
| MSN: | 18 SI 170 |
| Year of manufacture: | 2018 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Middenmeer Airfield, Noord-Holland -
 Netherlands
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Middenmeer Airfield |
| Middenmeer Airfield | |
| Investigating agency: | Dutch Safety Board |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
The student pilot had received 50 hours of flight training on the TL-3000 Sirius since January 2020. After a flying lesson with an instructor on 31 March 2021, the student pilot made his first solo flight that day from Middenmeer Airfield.
The wind came from the direction 180 degrees at a speed of 4 knots. The instructor was seated by the runway with
a radio in his hand. During the landing on grass runway 23, the aircraft bounced whereupon the pilot performed a go-around. At that same time the instructor told him to go around. After re-joining the circuit, the pilot selected full flaps at the end of downwind. On final the speed was 56 KIAS and the trim was selected a bit forward of the neutral position. When the aircraft was over the landing strip, the instructor told the pilot via the radio to flare and float out quietly. During the flare manoeuvre, the aircraft regained some height, and subsequently made a hard landing. The aircraft bounced up and hit the ground with a nose down attitude. The nose landing gear broke off, the aircraft nosed over and came to rest inverted. The flight instructor rushed to the aircraft and unsuccessfully attempted to open the passenger door. The pilot managed to open the door on his side and exit the aircraft unharmed. The aircraft was severely damaged.
A similar accident to a TL-3000 (PH-4N5) occurred at Ameland Airfield on 17 October March 2020.
Dutch Safety Board Conclusions:
In both occurrences, the aircraft landed with little or no nose up attitude, followed by one or more bounces.
The pilots did, following the first bounce, not react by initiating a go-around. The aircraft subsequently landed on the nose landing gear, which thereafter broke off.
In the Middenmeer occurrence, the pilot had set the trim a bit forward of the neutral position on final, although the POH prescribes the aft position in this flight phase. It has not been established whether this was a contributing factor, although following the procedures in the POH is recommended at all times.
The nose wheel landing gear is generally the most critical part of the aircraft in case a landing is performed on all wheels at the same time. These accidents emphasize the importance of recognizing and acknowledging the dangers of a bounced landing. If case of a bounced landing, back pressure on the yoke or stick will keep the aircraft in a nose-high landing attitude, as prescribed by the POH. If the case of a significant bounce, a go-around should be performed.
Sources:
https://www.onderzoeksraad.nl/nl/page/18564/over-de-kop-geslagen-tijdens-landing-tl-ultralight-s.r.o.-tl-3000
https://www.flightradar24.com/data/aircraft/ph-4s1
PH-4N5 accident: https://aviation-safety.net/wikibase/wiki.php?id=243913
History of this aircraft
Other occurrences involving this aircraft
| 30 December 2019 | PH-4S1 | Adventure Flights | 0 | Middenmeer Airfield, Noord-Holland | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Apr-2021 08:47 | harro | Added |
| 24-Aug-2021 12:12 | harro | Updated [Time, Registration, Cn, Source] |
| 23-Dec-2021 09:34 | harro | Updated [Nature, Departure airport, Source, Narrative] |
| 23-Dec-2021 09:35 | harro | Updated [Narrative] |
| 12-Jun-2022 06:50 | Ron Averes | Updated [Location] |
| 13-Jun-2022 03:44 | Ron Averes | Updated [Location] |
Corrections or additions? ... Edit this accident description
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