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A B727-200 was returned to service with a cockpit overhead panel electrical connector left disconnected.
| Attributes | |
| ACN | 435559 |
| Time | |
| Date | 199904 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : fcc technician : powerplant technician : airframe |
| Experience | maintenance avionics : 8 maintenance technician : 8 |
| ASRS Report | 435559 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : pitot heat light and meter |
| Resolutory Action | none taken : unable |
| Consequence | other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
On apr/xa/99, I was troubleshooting a chronic #1 engine cowl anti-ice indication problem. During troubleshooting, I disconnected connector D4614 in the aft cockpit overhead. After troubleshooting, I reconnected the connector. As I accomplished a repair to splice SM1, a co-worker closed up the overhead panels in the cockpit. On apr/xb/99, I was notified that the aircraft had a pitot heat light illuminate and associated ammeter read zero at departure. Maintenance found connector D4488J disconnected and after reconnecting same, the system worked normally. I did not disconnect any other connectors beside D4614 to the best of my recollection, although it is possible that I pulled D4488J loose to gain access to D4614. I did not perform a pre-closeout inspection of the cockpit access panels which may have discovered the problem and allowed rectification action of same.
Original NASA ASRS Text
Title: A B727-200 WAS RETURNED TO SVC WITH A COCKPIT OVERHEAD PANEL ELECTRICAL CONNECTOR LEFT DISCONNECTED.
Narrative: ON APR/XA/99, I WAS TROUBLESHOOTING A CHRONIC #1 ENG COWL ANTI-ICE INDICATION PROB. DURING TROUBLESHOOTING, I DISCONNECTED CONNECTOR D4614 IN THE AFT COCKPIT OVERHEAD. AFTER TROUBLESHOOTING, I RECONNECTED THE CONNECTOR. AS I ACCOMPLISHED A REPAIR TO SPLICE SM1, A CO-WORKER CLOSED UP THE OVERHEAD PANELS IN THE COCKPIT. ON APR/XB/99, I WAS NOTIFIED THAT THE ACFT HAD A PITOT HEAT LIGHT ILLUMINATE AND ASSOCIATED AMMETER READ ZERO AT DEP. MAINT FOUND CONNECTOR D4488J DISCONNECTED AND AFTER RECONNECTING SAME, THE SYS WORKED NORMALLY. I DID NOT DISCONNECT ANY OTHER CONNECTORS BESIDE D4614 TO THE BEST OF MY RECOLLECTION, ALTHOUGH IT IS POSSIBLE THAT I PULLED D4488J LOOSE TO GAIN ACCESS TO D4614. I DID NOT PERFORM A PRE-CLOSEOUT INSPECTION OF THE COCKPIT ACCESS PANELS WHICH MAY HAVE DISCOVERED THE PROB AND ALLOWED RECTIFICATION ACTION OF SAME.
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.