<< >> NASA ASRS Report 717173, September 2006

A B737-700 was dispatched with the incorrect tape reproducer installed. Incorrect unit ordered and sent to station by maintenance controller.

Attributes
ACN	717173
Time
Date	200609
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
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	717173
Person 2
Affiliation	company : air carrier
Function	oversight : supervisor
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : installation performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Aircraft Environmental Factor Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

On sep/fri/06; I replaced the tape reproducer on aircraft X. I entered the work and part number; serial number in log to clear the discrepancy. No 'forced entry' required. Please note a xchk of part numbers during replacement (manufacturer part number) appeared the same and no problems noted. It was brought to my attention that a problem was found with that replacement. The wrong part number installed. Requested the wrong part number; maintenance control; and planner sent us the wrong part number. Manufacturer part numbers I check during replacement but missed the suffix. I remember being very busy that night due to our workload and suspect that to be a contributing factor. As well as no 'forced entry' required on log entry.

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Original NASA ASRS Text

Title: A B737-700 WAS DISPATCHED WITH THE INCORRECT TAPE REPRODUCER INSTALLED. INCORRECT UNIT ORDERED AND SENT TO STATION BY MAINT CTLR.

Narrative: ON SEP/FRI/06; I REPLACED THE TAPE REPRODUCER ON ACFT X. I ENTERED THE WORK AND PART NUMBER; SERIAL NUMBER IN LOG TO CLR THE DISCREPANCY. NO 'FORCED ENTRY' REQUIRED. PLEASE NOTE A XCHK OF PART NUMBERS DURING REPLACEMENT (MANUFACTURER PART NUMBER) APPEARED THE SAME AND NO PROBS NOTED. IT WAS BROUGHT TO MY ATTN THAT A PROB WAS FOUND WITH THAT REPLACEMENT. THE WRONG PART NUMBER INSTALLED. REQUESTED THE WRONG PART NUMBER; MAINT CTL; AND PLANNER SENT US THE WRONG PART NUMBER. MANUFACTURER PART NUMBERS I CHK DURING REPLACEMENT BUT MISSED THE SUFFIX. I REMEMBER BEING VERY BUSY THAT NIGHT DUE TO OUR WORKLOAD AND SUSPECT THAT TO BE A CONTRIBUTING FACTOR. AS WELL AS NO 'FORCED ENTRY' REQUIRED ON LOG ENTRY.

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.