A B757 was dispatched after the left air data computer was replaced and checked per the maintenance ...

Attributes
ACN	722544
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	B767 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	722544
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 : 2
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : manuals performance deficiency : inspection performance deficiency : non compliance with legal requirements performance deficiency : logbook entry
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Chart Or Publication Environmental Factor
Primary Problem	Maintenance Human Performance

Narrative:

The aircraft write-up concerned an amber slow speed bar and speed limit warning on the captain's eadi along with speed shaker activation. I replaced the left air data computer. I either failed to see a note at the top of page of the amm for the air data computer concerning rvsm or it didn't register with me that the air data computer was rvsm. (I think this is so because I was working on a 'speed' write-up.) therefore; I failed to have my work rii. I did however complete all other work per the amm (aircraft maintenance manual). (Please note that the 'note' on page of the amm mentions a 'confirmation' not rii. This is confusing.) I have reviewed the gpm concerning rvsm/rii items. I also notified technical services of the need for an rii on the aircraft. He informed me that it had been accomplished earlier in the day. I think that I might not have missed the note in the amm if it had been placed after (I) in the 'procedures' section rather than at the top of the page and substantially separated from the beginning text of the procedure. Or rather than having a note the amm might just state that replacing 1 air data computer required an rii.

Original NASA ASRS Text

Title: A B757 WAS DISPATCHED AFTER THE L AIR DATA COMPUTER WAS REPLACED AND CHKED PER THE MAINT MANUAL. DID NOT HAVE REQUIRED INSPECTION.

Narrative: THE ACFT WRITE-UP CONCERNED AN AMBER SLOW SPD BAR AND SPD LIMIT WARNING ON THE CAPT'S EADI ALONG WITH SPD SHAKER ACTIVATION. I REPLACED THE L AIR DATA COMPUTER. I EITHER FAILED TO SEE A NOTE AT THE TOP OF PAGE OF THE AMM FOR THE ADC CONCERNING RVSM OR IT DIDN'T REGISTER WITH ME THAT THE ADC WAS RVSM. (I THINK THIS IS SO BECAUSE I WAS WORKING ON A 'SPD' WRITE-UP.) THEREFORE; I FAILED TO HAVE MY WORK RII. I DID HOWEVER COMPLETE ALL OTHER WORK PER THE AMM (ACFT MAINT MANUAL). (PLEASE NOTE THAT THE 'NOTE' ON PAGE OF THE AMM MENTIONS A 'CONFIRMATION' NOT RII. THIS IS CONFUSING.) I HAVE REVIEWED THE GPM CONCERNING RVSM/RII ITEMS. I ALSO NOTIFIED TECHNICAL SVCS OF THE NEED FOR AN RII ON THE ACFT. HE INFORMED ME THAT IT HAD BEEN ACCOMPLISHED EARLIER IN THE DAY. I THINK THAT I MIGHT NOT HAVE MISSED THE NOTE IN THE AMM IF IT HAD BEEN PLACED AFTER (I) IN THE 'PROCS' SECTION RATHER THAN AT THE TOP OF THE PAGE AND SUBSTANTIALLY SEPARATED FROM THE BEGINNING TEXT OF THE PROC. OR RATHER THAN HAVING A NOTE THE AMM MIGHT JUST STATE THAT REPLACING 1 ADC REQUIRED AN RII.

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.

A B757 was dispatched after the left air data computer was replaced and checked per the maintenance manual. Did not have required inspection.