|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : rdu|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Operator||common carrier : air carrier|
|Make Model Name||Large Transport, Low Wing, 3 Turbojet Eng|
|Flight Phase||ground other : taxi|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 210|
flight time total : 15000
|Function||flight crew : second officer|
|Qualification||pilot : flight engineer|
|Anomaly||aircraft equipment problem : less severe|
non adherence : published procedure
non adherence : far
|Independent Detector||other flight crewa|
|Resolutory Action||none taken : anomaly accepted|
|Air Traffic Incident||Pilot Deviation|
On taxi out for takeoff, upper yaw damper failed to work to the right (ok to left and lower yaw damper ok). Although allowed to crew placard per MEL I elected to return back to ramp to have maintenance look at it and either fix it or placard the upper yaw damper and take the aircraft out of CAT ii. They could not fix it and told me to take the aircraft and placard it in flight. This was my first error in that maintenance must sign off the problem at a major maintenance base, ie, rdu. I checked with dispatch and we agreed that the flight could be flown with the present fuel supply at the lower altitude and the longer flight time. We took the aircraft. I should not have allowed someone to talk me into taking an aircraft west/O the proper signoffs, even though we could have legally taken the aircraft if we had not returned back to the gate. Returning back to the gate changed the requirements, ie, maintenance must correct the problem or restrict the aircraft, ie, lower altitude, lower speeds, no CAT ii, etc.
Original NASA ASRS Text
Title: ACR LGT FLT MADE WITHOUT PROPERLY SIGNED OFF MAINTENANCE ITEM.
Narrative: ON TAXI OUT FOR TKOF, UPPER YAW DAMPER FAILED TO WORK TO THE RIGHT (OK TO LEFT AND LOWER YAW DAMPER OK). ALTHOUGH ALLOWED TO CREW PLACARD PER MEL I ELECTED TO RETURN BACK TO RAMP TO HAVE MAINT LOOK AT IT AND EITHER FIX IT OR PLACARD THE UPPER YAW DAMPER AND TAKE THE ACFT OUT OF CAT II. THEY COULD NOT FIX IT AND TOLD ME TO TAKE THE ACFT AND PLACARD IT IN FLT. THIS WAS MY FIRST ERROR IN THAT MAINT MUST SIGN OFF THE PROB AT A MAJOR MAINT BASE, IE, RDU. I CHKED WITH DISPATCH AND WE AGREED THAT THE FLT COULD BE FLOWN WITH THE PRESENT FUEL SUPPLY AT THE LOWER ALT AND THE LONGER FLT TIME. WE TOOK THE ACFT. I SHOULD NOT HAVE ALLOWED SOMEONE TO TALK ME INTO TAKING AN ACFT W/O THE PROPER SIGNOFFS, EVEN THOUGH WE COULD HAVE LEGALLY TAKEN THE ACFT IF WE HAD NOT RETURNED BACK TO THE GATE. RETURNING BACK TO THE GATE CHANGED THE REQUIREMENTS, IE, MAINT MUST CORRECT THE PROB OR RESTRICT THE ACFT, IE, LOWER ALT, LOWER SPDS, NO CAT II, ETC.
Data retrieved from NASA's ASRS site as of August 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.