 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Maintenance fails to sign off repaired APU on B757-200. Flight crew nearly diverts when the left generator fails.
| Attributes | |
| ACN | 755949 |
| Time | |
| Date | 200709 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 38000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute : atlantic |
| Flight Plan | IFR |
| Person 1 | |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 755949 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : unqualified personnel performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
We departed ZZZ1 earlier in the day with the logbook showing an APU inoperative. On our return to ZZZ1 we had a left generator drive light come on. We accomplished the QRH and disconnected the drive. We were now down to the right generator and the battery. According to the QRH you land at the nearest suitable airport. We called center and asked for priority handling. They wanted me to declare an emergency to get the priority handling so I did. We contacted dispatch and told them of our situation. They notified us that the APU had been signed off the night prior at ZZZ1. We rechked the logbook and found no signoff. We continued to ZZZ1 and landed uneventfully. We were flying all day long thinking the APU was inoperative when apparently it was fixed; but was never signed off. There was a placard in the logbook; the log item was open; and there was an inoperative sticker on the APU switch.
Original NASA ASRS Text
Title: MAINTENANCE FAILS TO SIGN OFF REPAIRED APU ON B757-200. FLT CREW NEARLY DIVERTS WHEN THE LEFT GENERATOR FAILS.
Narrative: WE DEPARTED ZZZ1 EARLIER IN THE DAY WITH THE LOGBOOK SHOWING AN APU INOP. ON OUR RETURN TO ZZZ1 WE HAD A L GENERATOR DRIVE LIGHT COME ON. WE ACCOMPLISHED THE QRH AND DISCONNECTED THE DRIVE. WE WERE NOW DOWN TO THE R GENERATOR AND THE BATTERY. ACCORDING TO THE QRH YOU LAND AT THE NEAREST SUITABLE ARPT. WE CALLED CTR AND ASKED FOR PRIORITY HANDLING. THEY WANTED ME TO DECLARE AN EMER TO GET THE PRIORITY HANDLING SO I DID. WE CONTACTED DISPATCH AND TOLD THEM OF OUR SITUATION. THEY NOTIFIED US THAT THE APU HAD BEEN SIGNED OFF THE NIGHT PRIOR AT ZZZ1. WE RECHKED THE LOGBOOK AND FOUND NO SIGNOFF. WE CONTINUED TO ZZZ1 AND LANDED UNEVENTFULLY. WE WERE FLYING ALL DAY LONG THINKING THE APU WAS INOP WHEN APPARENTLY IT WAS FIXED; BUT WAS NEVER SIGNED OFF. THERE WAS A PLACARD IN THE LOGBOOK; THE LOG ITEM WAS OPEN; AND THERE WAS AN INOP STICKER ON THE APU SWITCH.
Data retrieved from NASA's ASRS site as of January 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.