History of Flight
On 20 February 2023, Air Niugini Limited Fokker 70 aircraft, registration P2-ANT, was involved in a cabin pressurisation event in flight. The flight path included a circuit in the Mt. Hagen area, followed by a go-around and subsequent landing. The event is depicted in Figures 1-3 of the official report, which illustrate the occurrence flight path, the path in the Mt. Hagen circuit, and the path from go-around to landing.
Injuries
The report lists sections for serious injuries and minor injuries, but the details of specific injuries or number of persons injured are not provided in the source text.
Damage to Aircraft
Section 1.3 of the report addresses damage to the aircraft, but the source text does not include specific details of the damage.
Personnel Information
The flight crew consisted of a Pilot in Command (PIC) and a Copilot, both with described experience and qualifications. Cabin crew included Cabin Crew 1 (CC1) and Cabin Crew 2 (CC2), with their respective roles and backgrounds documented in the report.
Aircraft Information
The aircraft was a Fokker 70, registration P2-ANT, operated by Air Niugini Limited. The report includes data on the aircraft and describes the pressurisation system, including the Pressure Control System (Figure 4) and pressurisation controls and indicators located on the overhead panel (Figure 5). The climb schedule for destination-airport altitude lower than the departure-airport altitude is also referenced (Figure 6).
Meteorological Information
The report references information from the PNG National Weather Service, but no specific weather conditions are provided in the source text.
Flight Recorders
A Solid State Flight Data Recorder (SSFDR) recorded data from the serious incident flight. A plot of the recorded data is included in Figure 7 of the report.
Survival Aspects
Sections detail actions of the flight crew and cabin crew, as well as passenger seating information (Figure 8). Post-flight actions of the flight crew are also described.
Organisational Information
The aircraft operator is Air Niugini Limited. The report includes information on accident and serious incident notification, access and control, and passengers requiring medical attention.
Tests and Research
Section 1.16.1 describes a cabin pressurisation test conducted in manual mode, but specific results are not included in the provided text.
The investigation did not determine a probable cause in the source text.