|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0001 To 0600|
|Locale Reference||airport : zzz.airport|
|Altitude||agl single value : 0|
|Operator||common carrier : air carrier|
|Make Model Name||B757-200|
|Operating Under FAR Part||Part 121|
|Flight Phase||ground : preflight|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Experience||flight time last 90 days : 260|
flight time total : 16000
flight time type : 3800
|Anomaly||aircraft equipment problem : less severe|
maintenance problem : improper maintenance
non adherence : company policies
non adherence : far
non adherence : published procedure
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : overcame equipment problem|
|Problem Areas||Maintenance Human Performance|
During cruise right generator failed; we took care of it; notified maintenance control and dispatch and on the ground we coordinated with station operation. We followed up with a phone call to maintenance control who assured us that they would take care of the generator; have someone from ZZZ come up to ZZZ1 since the airplane stayed overnight till the following morning. Next morning we came out and found to our surprise that the right generator was deferred inoperative. A local company mechanic had performed whatever maintenance control asked him to do but was told that they would send someone up from ZZZ to replace the generator. We accepted the aircraft as per deferral even though we had scheduled to do 3 legs that day. During cockpit preparation we realized that we did not have a deferral sticker. Talked to maintenance control; he asked if we could put the sticker in place; we said yes; but we question if the rest of the deferral procedure had been done; especially since we found the generator disconnect switch still safety wired. Came to find out that the procedure had not been done or signed off even though we already had part of the maintenance release printed. We were asked to do an engine start at the gate and disconnect the generator which we declined to do since that is not a procedure we would do unless irregular procedure or maintenance control would ask us to do so as the best action while 'flying' not at the gate. 2 mechanics came from ZZZ under the impression that the generator had been replaced and to ensure the job was done correctly; to find out that the generator had only been svced with 1 quart of oil. According to the mechanics they had 3 generators in stock and plenty of willing manpower to have done the job right. We departed right generator deferred inoperative correctly; 5 hours late. There were 14 hours to do this right and nothing got done. Lots of passenger were inconvenienced and derailed in their plans; people had to work extra hard to facilitate the situation and safety was jeopardized.
Original NASA ASRS Text
Title: B757 CAPT REPORTS GENERATOR FAILURE. GENERATOR IS IMPROPERLY MEL'ED FOR MORNING DEPARTURE CAUSING 5 HOUR DELAY.
Narrative: DURING CRUISE R GENERATOR FAILED; WE TOOK CARE OF IT; NOTIFIED MAINT CTL AND DISPATCH AND ON THE GND WE COORDINATED WITH STATION OP. WE FOLLOWED UP WITH A PHONE CALL TO MAINT CTL WHO ASSURED US THAT THEY WOULD TAKE CARE OF THE GENERATOR; HAVE SOMEONE FROM ZZZ COME UP TO ZZZ1 SINCE THE AIRPLANE STAYED OVERNIGHT TILL THE FOLLOWING MORNING. NEXT MORNING WE CAME OUT AND FOUND TO OUR SURPRISE THAT THE R GENERATOR WAS DEFERRED INOP. A LCL COMPANY MECH HAD PERFORMED WHATEVER MAINT CTL ASKED HIM TO DO BUT WAS TOLD THAT THEY WOULD SEND SOMEONE UP FROM ZZZ TO REPLACE THE GENERATOR. WE ACCEPTED THE ACFT AS PER DEFERRAL EVEN THOUGH WE HAD SCHEDULED TO DO 3 LEGS THAT DAY. DURING COCKPIT PREPARATION WE REALIZED THAT WE DID NOT HAVE A DEFERRAL STICKER. TALKED TO MAINT CTL; HE ASKED IF WE COULD PUT THE STICKER IN PLACE; WE SAID YES; BUT WE QUESTION IF THE REST OF THE DEFERRAL PROC HAD BEEN DONE; ESPECIALLY SINCE WE FOUND THE GENERATOR DISCONNECT SWITCH STILL SAFETY WIRED. CAME TO FIND OUT THAT THE PROC HAD NOT BEEN DONE OR SIGNED OFF EVEN THOUGH WE ALREADY HAD PART OF THE MAINT RELEASE PRINTED. WE WERE ASKED TO DO AN ENG START AT THE GATE AND DISCONNECT THE GENERATOR WHICH WE DECLINED TO DO SINCE THAT IS NOT A PROC WE WOULD DO UNLESS IRREGULAR PROC OR MAINT CTL WOULD ASK US TO DO SO AS THE BEST ACTION WHILE 'FLYING' NOT AT THE GATE. 2 MECHS CAME FROM ZZZ UNDER THE IMPRESSION THAT THE GENERATOR HAD BEEN REPLACED AND TO ENSURE THE JOB WAS DONE CORRECTLY; TO FIND OUT THAT THE GENERATOR HAD ONLY BEEN SVCED WITH 1 QUART OF OIL. ACCORDING TO THE MECHS THEY HAD 3 GENERATORS IN STOCK AND PLENTY OF WILLING MANPOWER TO HAVE DONE THE JOB RIGHT. WE DEPARTED R GENERATOR DEFERRED INOP CORRECTLY; 5 HRS LATE. THERE WERE 14 HRS TO DO THIS RIGHT AND NOTHING GOT DONE. LOTS OF PAX WERE INCONVENIENCED AND DERAILED IN THEIR PLANS; PEOPLE HAD TO WORK EXTRA HARD TO FACILITATE THE SITUATION AND SAFETY WAS JEOPARDIZED.
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.