An MD88 with a left engine egt exceedence was run and found within limits per the performance handbook. Later reports found in engine history data show that a borescope was required but not accomplished.

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Attributes
ACN	618586
Time
Date	200405
Day	Sun
Local Time Of Day	1801 To 2400
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	MD-88
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : inspector
Qualification	technician : airframe technician : powerplant
Experience	maintenance technician : 14
ASRS Report	618586
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Events
Anomaly	maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Independent Detector	other other : 969
Consequence	other
Factors
Maintenance	contributing factor : manuals performance deficiency : training performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : inspection performance deficiency : fault isolation
Supplementary
Problem Areas	Company Chart Or Publication Aircraft Maintenance Human Performance
Primary Problem	Chart Or Publication
Situations
Publication	ENGINE MAINT HISTORY DOC.

Narrative:

Aircraft X had an inbound write-up. On takeoff, left egt reached 598 degrees for approximately 8 seconds. Using an at 40 power setting outside air temperature 33 degrees. All other indications normal. I discussed the write-up with a lead mechanic. I viewed aircraft history and only found 1 prior write-up. By following aircraft maintenance manual, I troubleshot per aircraft maintenance manual 72-00-00-501, found that there was an exceedence of temperature. I ran left engine using pilots flight handbook -- all were within limits. Using aircraft maintenance manual 72-00-00-501, page 51, found write-up 598 degrees in zone F. Page 11, zone F -- an engine which goes into zone F 4 times since last hot section, disassembly and inspection must get the procedure zone B. I used aircraft history and found only 1 write-up. So I signed off write-up. I have had no known knowledge of using engine history, which would have stated the need for a boroscope inspection. I have learned to use document for engine history function for troubleshoot and history of engines.

Original NASA ASRS Text

Title: AN MD88 WITH A L ENG EGT EXCEEDENCE WAS RUN AND FOUND WITHIN LIMITS PER THE PERFORMANCE HANDBOOK. LATER RPTS FOUND IN ENG HISTORY DATA SHOW THAT A BORESCOPE WAS REQUIRED BUT NOT ACCOMPLISHED.

Narrative: ACFT X HAD AN INBOUND WRITE-UP. ON TKOF, L EGT REACHED 598 DEGS FOR APPROX 8 SECONDS. USING AN AT 40 PWR SETTING OUTSIDE AIR TEMP 33 DEGS. ALL OTHER INDICATIONS NORMAL. I DISCUSSED THE WRITE-UP WITH A LEAD MECH. I VIEWED ACFT HISTORY AND ONLY FOUND 1 PRIOR WRITE-UP. BY FOLLOWING ACFT MAINT MANUAL, I TROUBLESHOT PER ACFT MAINT MANUAL 72-00-00-501, FOUND THAT THERE WAS AN EXCEEDENCE OF TEMP. I RAN L ENG USING PLTS FLT HANDBOOK -- ALL WERE WITHIN LIMITS. USING ACFT MAINT MANUAL 72-00-00-501, PAGE 51, FOUND WRITE-UP 598 DEGS IN ZONE F. PAGE 11, ZONE F -- AN ENG WHICH GOES INTO ZONE F 4 TIMES SINCE LAST HOT SECTION, DISASSEMBLY AND INSPECTION MUST GET THE PROC ZONE B. I USED ACFT HISTORY AND FOUND ONLY 1 WRITE-UP. SO I SIGNED OFF WRITE-UP. I HAVE HAD NO KNOWN KNOWLEDGE OF USING ENG HISTORY, WHICH WOULD HAVE STATED THE NEED FOR A BOROSCOPE INSPECTION. I HAVE LEARNED TO USE DOCUMENT FOR ENGINE HISTORY FUNCTION FOR TROUBLESHOOT AND HISTORY OF ENGS.

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.