23-06-07

 Sint Elmo's fire

dxb-534

Onlangs, ergens boven de South China Sea onderweg naar Ho Chi Minh (Saigon) maakte ik een foto van het Sint Elmo's fire op de front windshield (voorruit). Soms krijg je die kleine statische ontladingen en alhoewel heel spectaculair had ik nooit gedacht dat ze kwaad konden maar.......

 

  • During climbout...we were in heavy rain and massive St. Elmo’s Fire, lots of lightning and moderate chop/turbulence. We were climbing through FL270 and doing 270 knots with the autopilot on. After several minutes of this there was a strong burning smell in the cockpit. I had experienced this before in the 757 during St. Elmo’s Fire, but the copilot hadn’t.

    The smell got stronger and then the Captain’s airspeed indicator indicated about 120 knots. Then my altimeter failed.... We then got a ‘rudder ratio’ and ‘mach speed trim’ warning on the EICAS [Engine Instrument and Crew Alerting System]...More electrical instruments seemed to be failing or giving false information on my side and the problem was spreading to the co-pilot’s side. There were more EICAS warnings than we could read. Then the autopilot did a pitch up of over 10 degrees....I disconnected the autopilot. We declared an emergency to return to ZZZ. The problem [was], the radios seemed to have failed. On standby instruments, I slowly turned back to ZZZ...

    After repeated calls, the radio started to work...An emergency was officially declared...During this time, instruments were starting to come back, one by one. The burning smell was also going away...All warnings started to go away and everything worked normally...We landed overweight...The landing was extremely smooth on a very wet runway...

    It is my understanding (unconfirmed) that maintenance found nothing wrong with the aircraft. The only explanation that either I or the copilot can come up with is that there was a massive static buildup/discharge or lightning strike that temporarily knocked out most of our electrical system. There was no loud bang or sound normally associated with lightning strike or static discharge...

     

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  • 19:58 Gepost door JC Baus in Algemeen | Permalink | Commentaren (2) | Tags: saigon, sint elmo s fire, south china sea |  Facebook |

    Commentaren

    Prachtige foto JC. Hoe pak je het eigenlijk het best aan om een foto van te nemen? Heb er met het foto-apparaat gisteren een filmpje van gemaakt, maar de kleuren (wat het zo mooi maakt) ontbreken natuurlijk en de kwaliteit van die filmpjes is ook ondermaats.

    Gepost door: Brace | 25-06-07

    Hoi Brace
    Voor deze ene foto zijn er een tiental gemaakt. De beste gaat door photoshop, voor contrast, belichting etc....Dus veel proberen, een beetje geluk en in de photoshop-studio afwerken.

    Gepost door: JC | 26-06-07

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