United B772 at San Francisco on Apr 12th 2012, lightning strike

Last Update: April 13, 2012 / 15:43:27 GMT/Zulu time

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Incident Facts

Date of incident
Apr 12, 2012

Airline
United

Flight number
UA-930

Aircraft Registration
N788UA

Aircraft Type
Boeing 777-200

ICAO Type Designator
B772

A United Boeing 777-200, registration N788UA performing flight UA-930 from San Francisco,CA (USA) to London Heathrow,EN (UK) with 258 people on board, was climbing through about 13,000 feet out of San Francisco's runway 10L when the crew requested to level off at 15,000 feet advising they were going to return to San Francisco but needed to talk to the company and dump fuel first further reporting they had received a lightning strike that had released the passenger oxygen masks. They further explained that they had a stable aircraft, they just couldn't continue because the oxygen masks had deployed. The aircraft entered a holding near Sacramento,CA (USA) at 12,000 feet, dumped fuel and returned to San Francisco for a safe landing on runway 19L without assistance about 55 minutes after departure. Passengers reported the lightning struck the left side of the aircraft with a bright flash, a big bang and a very noticeable shockwave, the oxygen masks fell down immediately. The flight was cancelled, the passengers were rebooked onto other flights. Metars: KSFO 130556Z 12010KT 10SM -RA FEW015 SCT020 OVC028 09/07 A2984 RMK AO2 TSE52 SLP105 OCNL LTG DSNT E CB DSNT TS MOV E P0009 60076 T00940072 10139 20083 56015 KSFO 130456Z 19008KT 4SM TSRA BR SCT020 BKN028CB OVC041 09/08 A2987 RMK AO2 PK WND 24029/0409 WSHFT 0357 SLP114 TS OHD FRQ LTGICCCCG OHD TS MOV E P0040 T00940078 KSFO 130432Z 22010KT 4SM +TSRA BR SCT020 BKN028CB OVC038 09/07 A2987 RMK AO2 PKWND 24029/0409 WSHFT 0357 TS OHD FRQ LTGICCCCG OHD TS MOV E P0028 KSFO 130413Z 21018G29KT 2 1/2SM +TSRA BKN020 BKN028CB OVC043 09/07 A2988 RMK AO2 PK WND 24029/0409 WSHFT 0357 FRQ LTGICCCCG VC N VCTS N MOV NW P0007 KSFO 130356Z 15013KT 8SM TSRA SCT015 BKN020 OVC033CB 11/08 A2985 RMK AO2 SLP106 FRQ LTGICCCCA VC N VCTS N MOV NW P0015 T01060083 KSFO 130320Z 10012G18KT 3SM TSRA BKN028 BKN038CB OVC050 11/08 A2987 RMK AO2 TS OHD FRQ LTGICCCCA OHD TS MOV N P0006 KSFO 130256Z 10008KT 5SM TSRA SCT031 BKN043CB OVC050 11/08 A2989 RMK AO2 TSB48 SLP121 OCNL LTGICCC VC SE P0012 60012 T01060078 56016 KSFO 130254Z 11010KT 5SM TSRA SCT031 BKN043CB OVC050 11/08 A2989 RMK AO2 TSB48 OCNL LTGICCC VC SE P0011 KSFO 130156Z 17020G25KT 9SM -RA FEW034 BKN065 OVC085 12/07 A2991 RMK AO2 SLP129 P0000 T01220067 KSFO 130056Z 17017G25KT 10SM -RA FEW035 BKN046 OVC055 13/06 A2994 RMK AO2 RAB46 SLP137 P0000 T01330056
Incident Facts

Date of incident
Apr 12, 2012

Airline
United

Flight number
UA-930

Aircraft Registration
N788UA

Aircraft Type
Boeing 777-200

ICAO Type Designator
B772

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