Miat B738M near Osaka on Aug 4th 2025, loss of cabin pressure

Last Update: August 13, 2025 / 13:40:42 GMT/Zulu time

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Incident Facts

Date of incident
Aug 4, 2025

Classification
Incident

Flight number
OM-502

Aircraft Registration
EI-MNG

A Miat Airlines Boeing 737-8 MAX, registration EI-MNG performing flight OM-502 from Tokyo Narita (Japan) to Ulaanbaatar (Mongolia), was enroute at FL340 and had just initiated a step climb about 100nm northnorthwest of Osaka Kansai (Japan) when the crew initiated an emergency descent due to the loss of cabin pressure. The aircraft turned south, entered a hold for about 2:15 hours to burn off fuel and diverted to Osaka for a safe landing on Kansai's runway 24L about 2:50 hours after initiating the emergency descent.

A passenger reported the aircraft lost cabin pressure and the passenger oxygen masks were released. The aircraft descended rapidly and entered a hold to burn off fuel.

The occurrence aircraft remained on the ground for about 34 hours before returning to service.
Aircraft Registration Data
Registration mark
EI-MNG
Country of Registration
Ireland
Date of Registration
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Manufacturer
THE BOEING COMPANY
Aircraft Model / Type
BOEING 737-8
Year of Manufacture
Serial Number
Maximum Take off Mass (MTOM) [kg]
Engine
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Main Owner
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Incident Facts

Date of incident
Aug 4, 2025

Classification
Incident

Flight number
OM-502

Aircraft Registration
EI-MNG

This article is published under license from Avherald.com. © of text by Avherald.com.
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