*Seguridad Aérea* / Accident: ABX Air Cargo B762 at San Francisco on Jun 28th 2008, on fire while parked, no arson.

Accident: ABX Air Cargo B762 at San Francisco on Jun 28th 2008, on fire while parked, no arson

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created Tuesday, Jun 30th 2009 18:25Z, last updated Wednesday, Jul 1st 2009 06:47Z The NTSB reported in a press release, that the cause of the fire was a short circuit to the supplemental oxygen system, that reached the oxygen hose. The design of the hose included an internal spring, which could be heated by the inadvertent application of electrical current, causing the plastic hose to ignite. The coil acted as ignition source, the hose material acted as fuel and the oxygen promoted the fire. Boeing had already identified the safety issues involving conductive hoses and had issued a service bulletin advising operators to replace conductive with non-conductive hoses. The FAA approved the bulletin, but did not issue an airworthiness directive. The NTSB found, that in other ABX Boeing 767 aircraft insufficient separation existed between wiring and oxygen system tubing, too. The NTSB issued a safety recommendation to require operators to replace electrically conductive with electrically non-conductive oxygen hoses. During the investigation the NTSB found, that the reading lights located in the passenger service units could become a potential source of ignition to nearby combustible materials. The NTSB therefore recommended, that all reading lights are to be mounted with rubber boots or other means to provide a greater level of electrical protection. The final report is to be expected in a couple of weeks.

"Maintenance in work" says a sign attached to the wall, that once separated the cockpit from the cabin, as the airplane was being prepared to be towed away from the stand, where it had caught fire. Heat and smoke caused severe damage not only to the fuselage, but also in the cockpit. Smoke and heat damage in the cockpit, photo: Vlasta Sajfr

The National Transportation Safety Board reported today, that ABX Air had received a threat against an unspecified aircraft within a week prior to the accident. The fire started immediately behind the cockpit outside the cargo hold. Cockpit Voice Recorder and Flight Data Recorder have already been sent to Washington for analysis. Both pilots have been interviewed yesterday. The NTSB is expected to conclude on scene investigations by July 6th.

 

 

An ABX Air Boeing 767-200, registration N799AX preparing to perform freight flight GB1611 from San Francisco,CA to Wilmington,OH (KILN)(USA), was parked at the ramp, plot 11, with engines shut down to be loaded and fueled, when fire broke out immediately behind the cockpit. The two pilots were on board, one received minor injuries and was brought to hospital. The Air Mail facilities (including DHL and USPS) with more than 100 workers have been evacuated as well. Fire brigades reportedly had to cut a hole in the cockpit area to gain access. The fire was quickly contained. The airport reported, that the airplane will be "unuseable for a while".

 

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