A B737-200 was dispatched after engine change with the engine autothrottle transducer not installed ...

Attributes
ACN	423760
Time
Date	199812
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	423760
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence : far
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

Air carrier engine change job card uvwxyz item 24 requires mechanic to install lvdt transducer on certain aircraft. The 'check by' block is X'ed out indicating inspection 'buy-back' not required. Item B requires adjustment, and provides for mechanic and inspection signoffs. If mechanic determines that lvdt is not required, he will north/a the block and the subsequent blocks relating to rigging inspection will then north/a and stamp 'check by' block due to the fact that since the component has not been installed there is no rigging to check. In order to prevent this maintenance error from recurring, I propose to have air carrier revise job card uvwxyz item 24 to include inspection buy-back regarding requirement for lvdt transmitters on aircraft xyzz-zyzy. Also, revise 'note' in item 24 to clarify requirement for lvdt transmitter. Contributing factors: fatigue. The technician and I had worked 16 hours each.

Original NASA ASRS Text

Title: A B737-200 WAS DISPATCHED AFTER ENG CHANGE WITH THE ENG AUTOTHROTTLE TRANSDUCER NOT INSTALLED IN NON COMPLIANCE WITH THE ENG CHANGE JOB CARD.

Narrative: ACR ENG CHANGE JOB CARD UVWXYZ ITEM 24 REQUIRES MECH TO INSTALL LVDT TRANSDUCER ON CERTAIN ACFT. THE 'CHK BY' BLOCK IS X'ED OUT INDICATING INSPECTION 'BUY-BACK' NOT REQUIRED. ITEM B REQUIRES ADJUSTMENT, AND PROVIDES FOR MECH AND INSPECTION SIGNOFFS. IF MECH DETERMINES THAT LVDT IS NOT REQUIRED, HE WILL N/A THE BLOCK AND THE SUBSEQUENT BLOCKS RELATING TO RIGGING INSPECTION WILL THEN N/A AND STAMP 'CHK BY' BLOCK DUE TO THE FACT THAT SINCE THE COMPONENT HAS NOT BEEN INSTALLED THERE IS NO RIGGING TO CHK. IN ORDER TO PREVENT THIS MAINT ERROR FROM RECURRING, I PROPOSE TO HAVE ACR REVISE JOB CARD UVWXYZ ITEM 24 TO INCLUDE INSPECTION BUY-BACK REGARDING REQUIREMENT FOR LVDT TRANSMITTERS ON ACFT XYZZ-ZYZY. ALSO, REVISE 'NOTE' IN ITEM 24 TO CLARIFY REQUIREMENT FOR LVDT TRANSMITTER. CONTRIBUTING FACTORS: FATIGUE. THE TECHNICIAN AND I HAD WORKED 16 HRS EACH.

Data retrieved from NASA's ASRS site as of July 2007 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 B737-200 was dispatched after engine change with the engine autothrottle transducer not installed in non compliance with the engine change job card.