|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : zzz.airport|
|Altitude||agl single value : 0|
|Operator||common carrier : air carrier|
|Make Model Name||SF 340B|
|Operating Under FAR Part||Part 121|
|Affiliation||company : air carrier|
|Function||maintenance : lead technician|
|Anomaly||aircraft equipment problem : critical|
maintenance problem : improper maintenance
maintenance problem : improper documentation
non adherence : published procedure
non adherence : far
|Independent Detector||other other : 1|
|Resolutory Action||none taken : detected after the fact|
|Maintenance||contributing factor : briefing|
performance deficiency : fault isolation
performance deficiency : logbook entry
performance deficiency : testing
performance deficiency : non compliance with legal requirements
Flight Crew Human Performance
Maintenance Human Performance
|Primary Problem||Maintenance Human Performance|
Mr X was working the aircraft at the outstation. He reported to me that he was deferring the #1 navigation due to the PIREP -- #1 navigation failed. I reviewed the MEL and confirmed that would be the proper MEL for that item. Maintenance deferred the item with the crew along with the associated taws mode 5 MEL. Upon arrival; ZZZ crew called maintenance then stated the first officer also had the CDI needle missing in VOR mode on his side and stated the captain side had a shark's tooth displayed. He said this shark's tooth issue was in his original PIREP in ZZZ1. That information was not given to me by mr X. I asked if he was told that by the crew; and he stated no. The shark's tooth is a giveaway to me that there may have been a power supply issue. In ZZZ; avionics found the essential avionics circuit breaker tripped. They reset it and all system started working properly. They cleared the ZZZ PIREP and the 2 MEL's. PIREP in ZZZ associated to MEL's. Troubleshot and cleared all items. Either the crew did not tell mr X about the shark's tooth on the captain RMI or they did; and he did not forward that information to me. Suggest pulling the phone tapes to see if the crew gave him that information. Depending on what happened; make sure all information pertaining to discrepancy be given to all persons involved in the deferral.
Original NASA ASRS Text
Title: A LEAD MECHANIC REPORTS ON MISCOMMUNICATION BETWEEN HIMSELF AND AN OUTSTATION MECHANIC REGARDING FLT CREW LOG WRITE-UP; #1 NAV FAILED. ITEM DEFERRED. MAINT BASE LATER FOUND ESSENTIAL AVIONICS CIRCUIT BREAKER TRIPPED ON SAAB 340B ACFT.
Narrative: MR X WAS WORKING THE ACFT AT THE OUTSTATION. HE RPTED TO ME THAT HE WAS DEFERRING THE #1 NAV DUE TO THE PIREP -- #1 NAV FAILED. I REVIEWED THE MEL AND CONFIRMED THAT WOULD BE THE PROPER MEL FOR THAT ITEM. MAINT DEFERRED THE ITEM WITH THE CREW ALONG WITH THE ASSOCIATED TAWS MODE 5 MEL. UPON ARR; ZZZ CREW CALLED MAINT THEN STATED THE FO ALSO HAD THE CDI NEEDLE MISSING IN VOR MODE ON HIS SIDE AND STATED THE CAPT SIDE HAD A SHARK'S TOOTH DISPLAYED. HE SAID THIS SHARK'S TOOTH ISSUE WAS IN HIS ORIGINAL PIREP IN ZZZ1. THAT INFO WAS NOT GIVEN TO ME BY MR X. I ASKED IF HE WAS TOLD THAT BY THE CREW; AND HE STATED NO. THE SHARK'S TOOTH IS A GIVEAWAY TO ME THAT THERE MAY HAVE BEEN A PWR SUPPLY ISSUE. IN ZZZ; AVIONICS FOUND THE ESSENTIAL AVIONICS CIRCUIT BREAKER TRIPPED. THEY RESET IT AND ALL SYS STARTED WORKING PROPERLY. THEY CLRED THE ZZZ PIREP AND THE 2 MEL'S. PIREP IN ZZZ ASSOCIATED TO MEL'S. TROUBLESHOT AND CLRED ALL ITEMS. EITHER THE CREW DID NOT TELL MR X ABOUT THE SHARK'S TOOTH ON THE CAPT RMI OR THEY DID; AND HE DID NOT FORWARD THAT INFO TO ME. SUGGEST PULLING THE PHONE TAPES TO SEE IF THE CREW GAVE HIM THAT INFO. DEPENDING ON WHAT HAPPENED; MAKE SURE ALL INFO PERTAINING TO DISCREPANCY BE GIVEN TO ALL PERSONS INVOLVED IN THE DEFERRAL.
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.