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A B737-700 during a heavy check the low range radio altimeter transceiver was replaced. Heads up guidance check was done and restored to autoland. Technician did not get verification number from maintenance control.
| Attributes | |
| ACN | 655699 |
| Time | |
| Date | 200502 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 655699 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was working on aircraft performing a heavy check. In my paperwork I had a request to change the #2 low range radio altimeter transceiver. I did change the transceiver as required and performed the functional check of the hgs and no faults were found; and system worked as required. I re-certified the aircraft to CAT III status; but I did not complete the system aircraft maintenance control check nor get a verification number from maintenance control.
Original NASA ASRS Text
Title: A B737-700 DURING A HVY CHK THE LOW RANGE RADIO ALTIMETER TRANSCEIVER WAS REPLACED. HEADS UP GUIDANCE CHK WAS DONE AND RESTORED TO AUTOLAND. TECHNICIAN DID NOT GET VERIFICATION NUMBER FROM MAINT CTL.
Narrative: I WAS WORKING ON ACFT PERFORMING A HVY CHK. IN MY PAPERWORK I HAD A REQUEST TO CHANGE THE #2 LOW RANGE RADIO ALTIMETER TRANSCEIVER. I DID CHANGE THE TRANSCEIVER AS REQUIRED AND PERFORMED THE FUNCTIONAL CHK OF THE HGS AND NO FAULTS WERE FOUND; AND SYS WORKED AS REQUIRED. I RE-CERTIFIED THE ACFT TO CAT III STATUS; BUT I DID NOT COMPLETE THE SYS ACFT MAINT CTL CHK NOR GET A VERIFICATION NUMBER FROM MAINT CTL.
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.