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A B737-700 was dispatched with the incorrect VHF transmitter-receiver unit installed in the number 2 position.
| Attributes | |
| ACN | 699215 |
| Time | |
| Date | 200604 |
| Local Time Of Day | 1201 To 1800 |
| 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 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 699215 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 4 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : installation |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
I don't remember all details but do remember the aircraft number and discrepancy. I suspect that I did do the installation and check out but that someone else had brought the receiver to me and had not properly investigated the part through maintenance computer parts compatibility problem for the particular aircraft and/or specific location to be installed. I normally retrieve parts I use myself; and only after investigating maintenance computer parts compatibility program as I have been doing for many years. I generally feel that we have to trust our supervisors; leads; and co-workers to do their jobs correctly and to support each other completely; not that I couldn't have made the mistake but with my training and years of experience it wouldn't be likely. I was not in fact aware that there was a different receiver required for position #1 and #2 and only one that will work in position #3 (not to be used in position #1 or #2).
Original NASA ASRS Text
Title: A B737-700 WAS DISPATCHED WITH THE INCORRECT VHF XMITTER-RECEIVER UNIT INSTALLED IN THE NUMBER 2 POS.
Narrative: I DON'T REMEMBER ALL DETAILS BUT DO REMEMBER THE ACFT NUMBER AND DISCREPANCY. I SUSPECT THAT I DID DO THE INSTALLATION AND CHK OUT BUT THAT SOMEONE ELSE HAD BROUGHT THE RECEIVER TO ME AND HAD NOT PROPERLY INVESTIGATED THE PART THROUGH MAINT COMPUTER PARTS COMPATIBILITY PROB FOR THE PARTICULAR ACFT AND/OR SPECIFIC LOCATION TO BE INSTALLED. I NORMALLY RETRIEVE PARTS I USE MYSELF; AND ONLY AFTER INVESTIGATING MAINT COMPUTER PARTS COMPATIBILITY PROGRAM AS I HAVE BEEN DOING FOR MANY YEARS. I GENERALLY FEEL THAT WE HAVE TO TRUST OUR SUPVRS; LEADS; AND CO-WORKERS TO DO THEIR JOBS CORRECTLY AND TO SUPPORT EACH OTHER COMPLETELY; NOT THAT I COULDN'T HAVE MADE THE MISTAKE BUT WITH MY TRAINING AND YEARS OF EXPERIENCE IT WOULDN'T BE LIKELY. I WAS NOT IN FACT AWARE THAT THERE WAS A DIFFERENT RECEIVER REQUIRED FOR POS #1 AND #2 AND ONLY ONE THAT WILL WORK IN POS #3 (NOT TO BE USED IN POS #1 OR #2).
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.