A B737 had a radio altimeter transceiver replaced and self-test ok. Aircraft did not have the required autoland test performed by a qualified technician.

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Attributes
ACN	721260
Time
Date	200612
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 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	721260
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Independent Detector	other other : 2
Resolutory Action	none taken : unable 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 : testing
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Chart Or Publication
Primary Problem	Maintenance Human Performance

Narrative:

I was notified by another mechanic that remove and reinstall of radio altimeter transceivers requires a qualified signoff. I was not aware of this and am not currently qualified. I am not sure that I have ever perform operations test and sign-off of this unit; however; I know I have removed and replaced this line replacement unit. I am currently taking steps to attain qualification on type B737 series. I will be sure to not sign off return to service of this line replace unit until qualification is obtained. I did not correctly research maintenance manual to access information needed to perform task.

Original NASA ASRS Text

Title: A B737 HAD A RADIO ALTIMETER TRANSCEIVER REPLACED AND SELF-TEST OK. ACFT DID NOT HAVE THE REQUIRED AUTOLAND TEST PERFORMED BY A QUALIFIED TECHNICIAN.

Narrative: I WAS NOTIFIED BY ANOTHER MECH THAT REMOVE AND REINSTALL OF RADIO ALTIMETER TRANSCEIVERS REQUIRES A QUALIFIED SIGNOFF. I WAS NOT AWARE OF THIS AND AM NOT CURRENTLY QUALIFIED. I AM NOT SURE THAT I HAVE EVER PERFORM OPS TEST AND SIGN-OFF OF THIS UNIT; HOWEVER; I KNOW I HAVE REMOVED AND REPLACED THIS LINE REPLACEMENT UNIT. I AM CURRENTLY TAKING STEPS TO ATTAIN QUALIFICATION ON TYPE B737 SERIES. I WILL BE SURE TO NOT SIGN OFF RETURN TO SVC OF THIS LINE REPLACE UNIT UNTIL QUALIFICATION IS OBTAINED. I DID NOT CORRECTLY RESEARCH MAINT MANUAL TO ACCESS INFO NEEDED TO PERFORM TASK.

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.