A B737-700 was dispatched with the incorrect forward cabin attendants interphone handset installed.

Attributes
ACN	648455
Time
Date	200502
Local Time Of Day	0001 To 0600
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	B737-700
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	648455
Person 2
Affiliation	company : air carrier
Function	oversight : supervisor
Events
Anomaly	maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	other other : 3
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : manuals performance deficiency : installation performance deficiency : testing performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

At the start of the night; I got my workload and had a history of forward flight attendant headset noise. My foreman told me we could try a handset (one had been sent to aircraft for the problem because unit was not in stock). I thought the part from stores that was ordered for the aircraft would be the correct effectivity; but I was incorrect. Somehow the part got through the stores process. Even though it came for that aircraft; I should have still checked.

Original NASA ASRS Text

Title: A B737-700 WAS DISPATCHED WITH THE INCORRECT FORWARD CABIN ATTENDANTS INTERPHONE HANDSET INSTALLED.

Narrative: AT THE START OF THE NIGHT; I GOT MY WORKLOAD AND HAD A HISTORY OF FORWARD FLT ATTENDANT HEADSET NOISE. MY FOREMAN TOLD ME WE COULD TRY A HANDSET (ONE HAD BEEN SENT TO ACFT FOR THE PROB BECAUSE UNIT WAS NOT IN STOCK). I THOUGHT THE PART FROM STORES THAT WAS ORDERED FOR THE ACFT WOULD BE THE CORRECT EFFECTIVITY; BUT I WAS INCORRECT. SOMEHOW THE PART GOT THROUGH THE STORES PROCESS. EVEN THOUGH IT CAME FOR THAT ACFT; I SHOULD HAVE STILL CHKED.

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.