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Emergency declared by the crew of a B747-200 when an electrical odor is detected in the first class galley area east of hnl, hi.
| Attributes | |
| ACN | 542116 |
| Time | |
| Date | 200203 |
| Day | Tue |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : zhn.artcc |
| State Reference | HI |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhn.artcc tower : mia.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B747-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 20000 flight time type : 4000 |
| ASRS Report | 542116 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical cabin event other maintenance problem : improper maintenance other anomaly |
| Independent Detector | other other : cab 4 |
| Resolutory Action | controller : provided flight assist flight crew : declared emergency flight crew : landed in emergency condition flight crew : overrode automation |
| Consequence | faa : reviewed incident with flight crew other other |
| Factors | |
| Maintenance | performance deficiency : testing performance deficiency : fault isolation performance deficiency : inspection performance deficiency : repair |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Maintenance Human Performance Company Aircraft |
| Primary Problem | Aircraft |
Narrative:
Strong electrical burning odor in cabin vicinity of forward galley, but determined not to be galley related. No actual smoke observed, but persistence of odor required using abnormal checklist for electrical fire or smoke. Due to what appeared to be excess amperage output from the essential thrust reverser, the thrust reverser was disconnected and essential dc bus depwred causing some equipment to become inoperative. This problem had occurred 10 days earlier, but on descent for landing at low altitude. Due to the uncertainty of whether the problem was ended by our checklist procedure, we declared an emergency. Except for the abnormal electrical confign, landing was normal and the burning odor was diminished, but still lingering.
Original NASA ASRS Text
Title: EMER DECLARED BY THE CREW OF A B747-200 WHEN AN ELECTRICAL ODOR IS DETECTED IN THE FIRST CLASS GALLEY AREA E OF HNL, HI.
Narrative: STRONG ELECTRICAL BURNING ODOR IN CABIN VICINITY OF FORWARD GALLEY, BUT DETERMINED NOT TO BE GALLEY RELATED. NO ACTUAL SMOKE OBSERVED, BUT PERSISTENCE OF ODOR REQUIRED USING ABNORMAL CHKLIST FOR ELECTRICAL FIRE OR SMOKE. DUE TO WHAT APPEARED TO BE EXCESS AMPERAGE OUTPUT FROM THE ESSENTIAL THRUST REVERSER, THE THRUST REVERSER WAS DISCONNECTED AND ESSENTIAL DC BUS DEPWRED CAUSING SOME EQUIP TO BECOME INOP. THIS PROB HAD OCCURRED 10 DAYS EARLIER, BUT ON DSCNT FOR LNDG AT LOW ALT. DUE TO THE UNCERTAINTY OF WHETHER THE PROB WAS ENDED BY OUR CHKLIST PROC, WE DECLARED AN EMER. EXCEPT FOR THE ABNORMAL ELECTRICAL CONFIGN, LNDG WAS NORMAL AND THE BURNING ODOR WAS DIMINISHED, BUT STILL LINGERING.
Data retrieved from NASA's ASRS site as of July 2007 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.