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A DC10-30 was unable to retract the nose landing gear first flight after having nose gear strut seals replaced.
| Attributes | |
| ACN | 346719 |
| Time | |
| Date | 199609 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 346719 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 346541 |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
I am employed as an a&P mechanic for ZZZ airlines. On sep/xx/96, I was assigned to work on abc airlines DC10-30. The work was to replace nose strut seals due to leaking. All work was accomplished per ZZZ maintenance manual. 5 days after the work, the aircraft flew. After takeoff the gear handle was positioned to up. The nose failed to retract up. I was told the aircraft returned to earth. Upon checking it was found a part of the nose gear ground sensing mechanism had broken, preventing the nose gear from retracting. I'm not sure what caused this breakage. After aircraft part was replaced the nose gear opened normal. Callback conversation with reporter revealed the following information: the reporter was contacted and revealed the following information. The airplane was not flown for 5 days after the strut seals were replaced. The reporter states no knowledge of any work performed in the nose area after the seal replacement was accomplished. The reporter does not have any knowledge of the parts or part required to correct the ground sensing malfunction preventing nose gear retraction. The reporter states the FAA has made no contact.
Original NASA ASRS Text
Title: A DC10-30 WAS UNABLE TO RETRACT THE NOSE LNDG GEAR FIRST FLT AFTER HAVING NOSE GEAR STRUT SEALS REPLACED.
Narrative: I AM EMPLOYED AS AN A&P MECH FOR ZZZ AIRLINES. ON SEP/XX/96, I WAS ASSIGNED TO WORK ON ABC AIRLINES DC10-30. THE WORK WAS TO REPLACE NOSE STRUT SEALS DUE TO LEAKING. ALL WORK WAS ACCOMPLISHED PER ZZZ MAINT MANUAL. 5 DAYS AFTER THE WORK, THE ACFT FLEW. AFTER TKOF THE GEAR HANDLE WAS POSITIONED TO UP. THE NOSE FAILED TO RETRACT UP. I WAS TOLD THE ACFT RETURNED TO EARTH. UPON CHKING IT WAS FOUND A PART OF THE NOSE GEAR GND SENSING MECHANISM HAD BROKEN, PREVENTING THE NOSE GEAR FROM RETRACTING. I'M NOT SURE WHAT CAUSED THIS BREAKAGE. AFTER ACFT PART WAS REPLACED THE NOSE GEAR OPENED NORMAL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR WAS CONTACTED AND REVEALED THE FOLLOWING INFO. THE AIRPLANE WAS NOT FLOWN FOR 5 DAYS AFTER THE STRUT SEALS WERE REPLACED. THE RPTR STATES NO KNOWLEDGE OF ANY WORK PERFORMED IN THE NOSE AREA AFTER THE SEAL REPLACEMENT WAS ACCOMPLISHED. THE RPTR DOES NOT HAVE ANY KNOWLEDGE OF THE PARTS OR PART REQUIRED TO CORRECT THE GND SENSING MALFUNCTION PREVENTING NOSE GEAR RETRACTION. THE RPTR STATES THE FAA HAS MADE NO CONTACT.
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.