A B757-200 had a deferred right engine blocker door and damaged fairing with engineering authority/a...

Attributes
ACN	595865
Time
Date	200310
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Qualification	technician : powerplant technician : airframe
ASRS Report	595865
Person 2
Affiliation	company : air carrier
Function	other personnel other
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation non adherence : far non adherence : published procedure
Independent Detector	other other : person 2
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : non availability of parts contributing factor : engineering procedure performance deficiency : repair performance deficiency : logbook entry
Supplementary
Problem Areas	Company Maintenance Human Performance Chart Or Publication Aircraft
Primary Problem	Company

Narrative:

Aircraft X arrived ZZZ with the #2 thrust reverser deactivated due to a removed blocker door and a damaged section of closeout fairing. The removed blocker door was on maintenance carryover/placard and the damaged fairing was a time control item on the aircraft omi. An engineering authority/authorized was written with a temporary repair to inspect the damaged fairing each day. The fairing was within acceptable limits per the aircraft manual. The permanent repair was to replace the damaged fairing during or before the damaged blocker door was replaced. After evaluating repair it was discovered by myself that the repair could not be made at ZZZ due to the fasteners required are not a stock item at ZZZ. I contacted maintenance coordination center and after explaining situation was told to supplement the time control item in the open maintenance items with the required fasteners part numbers and install the repaired blocker door and reactivate the thrust reverser. The repaired blocker door was replaced and tested per the maintenance manual satisfactorily, and the thrust reverser was reactivated. The maintenance carryover was cleared, and the time control item for the damaged fairing was supplemented. After flight departure ZZZ1 questioned why the thrust reverser had been reactivated. No place in the engineering order did it say to deactivate the thrust reverser. The thrust reverser had been deactivated when the damaged blocker door had been removed per the MEL. As I had replaced the blocker door and tested the thrust reverser successfully per the maintenance manual, I felt no need to deactivate it again. This problem can be prevented in the future by not connecting multiple discrepancies together. Examples are maintenance carryover and time control item, or multiple maintenance carryover. Each discrepancy needs to be handled independently.

Original NASA ASRS Text

Title: A B757-200 HAD A DEFERRED R ENG BLOCKER DOOR AND DAMAGED FAIRING WITH ENGINEERING AUTH. BLOCKER DOOR WAS REPLACED AND REVERSER REACTIVATED. MAINT CTL QUESTIONED REVERSER REACTIVATION.

Narrative: ACFT X ARRIVED ZZZ WITH THE #2 THRUST REVERSER DEACTIVATED DUE TO A REMOVED BLOCKER DOOR AND A DAMAGED SECTION OF CLOSEOUT FAIRING. THE REMOVED BLOCKER DOOR WAS ON MAINT CARRYOVER/PLACARD AND THE DAMAGED FAIRING WAS A TIME CTL ITEM ON THE ACFT OMI. AN ENGINEERING AUTH WAS WRITTEN WITH A TEMPORARY REPAIR TO INSPECT THE DAMAGED FAIRING EACH DAY. THE FAIRING WAS WITHIN ACCEPTABLE LIMITS PER THE ACFT MANUAL. THE PERMANENT REPAIR WAS TO REPLACE THE DAMAGED FAIRING DURING OR BEFORE THE DAMAGED BLOCKER DOOR WAS REPLACED. AFTER EVALUATING REPAIR IT WAS DISCOVERED BY MYSELF THAT THE REPAIR COULD NOT BE MADE AT ZZZ DUE TO THE FASTENERS REQUIRED ARE NOT A STOCK ITEM AT ZZZ. I CONTACTED MAINT COORD CTR AND AFTER EXPLAINING SIT WAS TOLD TO SUPPLEMENT THE TIME CTL ITEM IN THE OPEN MAINT ITEMS WITH THE REQUIRED FASTENERS PART NUMBERS AND INSTALL THE REPAIRED BLOCKER DOOR AND REACTIVATE THE THRUST REVERSER. THE REPAIRED BLOCKER DOOR WAS REPLACED AND TESTED PER THE MAINT MANUAL SATISFACTORILY, AND THE THRUST REVERSER WAS REACTIVATED. THE MAINT CARRYOVER WAS CLRED, AND THE TIME CTL ITEM FOR THE DAMAGED FAIRING WAS SUPPLEMENTED. AFTER FLT DEP ZZZ1 QUESTIONED WHY THE THRUST REVERSER HAD BEEN REACTIVATED. NO PLACE IN THE ENGINEERING ORDER DID IT SAY TO DEACTIVATE THE THRUST REVERSER. THE THRUST REVERSER HAD BEEN DEACTIVATED WHEN THE DAMAGED BLOCKER DOOR HAD BEEN REMOVED PER THE MEL. AS I HAD REPLACED THE BLOCKER DOOR AND TESTED THE THRUST REVERSER SUCCESSFULLY PER THE MAINT MANUAL, I FELT NO NEED TO DEACTIVATE IT AGAIN. THIS PROB CAN BE PREVENTED IN THE FUTURE BY NOT CONNECTING MULTIPLE DISCREPANCIES TOGETHER. EXAMPLES ARE MAINT CARRYOVER AND TIME CTL ITEM, OR MULTIPLE MAINT CARRYOVER. EACH DISCREPANCY NEEDS TO BE HANDLED INDEPENDENTLY.

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 B757-200 had a deferred right engine blocker door and damaged fairing with engineering authority/authorized. Blocker door was replaced and reverser reactivated. Maintenance control questioned reverser reactivation.