# NTSB DCA08WA025: Boeing 747-400, Bangkok, Thailand, January 7, 2008

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Class 5 · Foreign
- Date: January 7, 2008
- Place: Bangkok, Thailand
- Highest injury: No injuries
- Injuries: 334 uninjured
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 67356
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA08WA025
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67356/pdf
- Page: https://openairdocs.org/ntsb/DCA08WA025

## Factual narrative

On January 7, 2008, a Qantas Boeing 747-400,OJM, was reported to have lost all four generator control units (GCUs) about a half hour out from Bangkok, Thailand.  The airplane was landing by using standby power and instruments.  There were 334 passengers on board and no injuries were reported.    It has been reported that there was standing water in the galley above the GCUs and that the drip tray that would have prevented water intrusion was cracked.  GCUs have been pulled and will be examined at the US manufacturer.

The Australian Transport Safety Bureau is investigating and can be contacted for more information at telephone: (02) 6274 6141or email: atsbinfo@atsb.gov.au.

## Aircraft

- Registration: OJM (not matched to a registry record)
- Reported make and model: Boeing 747-400
- Category: Airplane
- Damage: Minor damage
- Flight: Non-U.S., commercial
- Operator: Qantas

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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