ASN Wikibase Occurrence # 310947
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| Date: | Monday 25 February 2019 |
| Time: | |
| Type: |  Boeing 737-8H6 (WL) |
| Owner/operator: | Malaysia Airlines |
| Registration: | 9M-MXH |
| MSN: | 40135/3911 |
| Year of manufacture: | 2012 |
| Fatalities: | Fatalities: 0 / Occupants: 127 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | near Jambi -
 Indonesia
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Jakarta-Soekarno-Hatta International Airport (CGK/WIII) |
| Kuala Lumpur International Airport (KUL/WMKK) | |
| Investigating agency: | AAIB Malaysia |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight crew of the Boeing 737-800 declared an emergency due to suspected fuel leak on main tank No.1.
The was en route between Jakarta (CGK) and Kuala Lumpur (KUL) and the decision was made to divert to Jambi (DJB), where it landed at 14:26. Upon arrival at the bay and after engine shutdown, fuel indication in main tank No.1 increased. An engineer completed a walk-around checks and found nil signs of fuel leak.
CAUSES/CONTRIBUTING FACTORS
The main cause of this incident was attributed to a technical fault of the Fuel Quantity Processor Unit (FQPU). The fault from the bad J1 connector and faulty clock signal from OSC was the cause for the unreliable fuel tank 1 quantity indication. It resulted in fuel configuration and imbalance on No. 1 tank
light to illuminate.
This caused the fuel from left and right tanks to show a gradual increase in imbalance with fuel “IMBAL” and fuel “LOW” alerts triggered. The flight crew initiated a diversion due to suspected fuel leak caused by the misleading fuel indication.
Accident investigation:
 |
|
Sources:
AAIB Malaysia
History of this aircraft
Other occurrences involving this aircraft
| 13 June 2017 | 9M-MXH | Malaysia Airlines | 0 | Jakarta-Soekarno-Hatta International Airport (CGK/WIII) | |
min |
| Tire failure | ||||||
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Apr-2023 16:24 | harro | Added |
Corrections or additions? ... Edit this accident description
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