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B777 flight crew reports pack failure during eastbound atlantic crossing and diverts to egll due to absence of maintenance at destination.
| Attributes | |
| ACN | 771469 |
| Time | |
| Date | 200801 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : czqx.artcc |
| State Reference | NF |
| Altitude | msl single value : 36000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : czqx.artcc tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute : atlantic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 1500 |
| ASRS Report | 771469 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 220 flight time total : 15000 flight time type : 1100 |
| ASRS Report | 771467 |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : eicas other flight crewa |
| Resolutory Action | flight crew : diverted to another airport flight crew : landed as precaution |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Left transponder failed after takeoff. Discussed with dispatch; continued flight. 2 hours into flight; pilot bunkroom smoke alarm went off for 3 mins; then extinguished. No noticeable cause for alarm going off. Just prior to that; lost left pack and consulted maintenance and dispatch. Elected to continue atlantic crossing; but to divert into lhr rather than continue on with no redundant pack or transponder. Lhr insisted that we couldn't land overweight since previous accident had restr operations to one runway and they could not risk us fouling the other runway with a blown tire. We dumped fuel at 15000 ft; 50 NM west of strumble; then had 45 mins holding before arrival into lhr. Uneventful landing. Passenger put up overnight and we continued the next day with re-staffed flight attendant crew.
Original NASA ASRS Text
Title: B777 FLT CREW REPORTS PACK FAILURE DURING EASTBOUND ATLANTIC CROSSING AND DIVERTS TO EGLL DUE TO ABSENCE OF MAINTENANCE AT DESTINATION.
Narrative: L XPONDER FAILED AFTER TKOF. DISCUSSED WITH DISPATCH; CONTINUED FLT. 2 HRS INTO FLT; PLT BUNKROOM SMOKE ALARM WENT OFF FOR 3 MINS; THEN EXTINGUISHED. NO NOTICEABLE CAUSE FOR ALARM GOING OFF. JUST PRIOR TO THAT; LOST L PACK AND CONSULTED MAINT AND DISPATCH. ELECTED TO CONTINUE ATLANTIC XING; BUT TO DIVERT INTO LHR RATHER THAN CONTINUE ON WITH NO REDUNDANT PACK OR XPONDER. LHR INSISTED THAT WE COULDN'T LAND OVERWT SINCE PREVIOUS ACCIDENT HAD RESTR OPS TO ONE RWY AND THEY COULD NOT RISK US FOULING THE OTHER RWY WITH A BLOWN TIRE. WE DUMPED FUEL AT 15000 FT; 50 NM W OF STRUMBLE; THEN HAD 45 MINS HOLDING BEFORE ARR INTO LHR. UNEVENTFUL LNDG. PAX PUT UP OVERNIGHT AND WE CONTINUED THE NEXT DAY WITH RE-STAFFED FLT ATTENDANT CREW.
Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.