Boeing 737-900 PK-LQR — Minangkabau International Airport
- Nomor investigasi
- KNKT.21.12.01.04
- Waktu kejadian
- Lokasi
- Minangkabau International Airport
- Wilayah administratif
- KOTA PADANG, SUMATERA BARAT
Kronologi & deskripsi kejadian
LNI 145, during climbing cabin altitude was not normal, At FL100 cabin altitude shown around 6000 and keep rising. The Pilot performed manual pressurization and close the outflow valve to get cabin altitude descend. Pilot request to ATC to stopped climb at FL210 but cabin altitude slowly keep rising up to 9000. Cabin Altitude warning sounded and the pilot decided to RTB back to Padang. The pilot performed Emergency descend memory item and NNC as required and after that Oxygen Mask dropped. The aircraft landed safely at PDG and Declared AOG after inspection from engineer. All passengers were fine and the condition was under control
Data teknis
| Operator / maskapai | Lion Air |
|---|---|
| Registrasi | PK-LQR |
| Tipe pesawat | Boeing 737-900 |
| Nomor penerbangan | LNI145 |
| MTOW | above 5,700 kg |
| Tipe operasi | AOC 121 |
| Fase penerbangan | ENR |
| Jenis kejadian | System/Component Failure or Malfunction (Non-Powerplant) |
| Teritori | SUMATERA |
Faktor penyebab & kontributor
Faktor penyebab belum tercatat pada basis data untuk kejadian ini.
Sarana & operator terkait
| Operator | Flight Number | Registrasi | Tipe Pesawat | Mtow | Tahun Pembuatan | Tipe Operasi |
|---|---|---|---|---|---|---|
| Lion Air | LNI145 | PK-LQR | Boeing 737-900 | above 5,700 kg | — | AOC 121 |
Rekomendasi keselamatan yang diterbitkan
Penerima: Lion AirOperator Pesawat
- 04.O-2021-18.01CLOSED1 tanggapan
While evaluating the action that had been taken by SIC on the pressurization panel, the PIC selected the outflow valve selector to OPEN position with intention to reduce the cabin rate of climb, subsequently the cabin altitude and cabin rate of climb increased rapidly and the Cabin Altitude Warning sound activated. The action resulted in the cabin pressure uncontrollable. Therefore KNKT recommends…
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